A Partial Glossary of Spanish Geological Terms ... - Pubs Warehouse
A Partial Glossary of Spanish Geological Terms ... - Pubs Warehouse
A Partial Glossary of Spanish Geological Terms ... - Pubs Warehouse
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U.S. DEPARTMENT OF THE INTERIOR<br />
U.S. GEOLOGICAL SURVEY<br />
A <strong>Partial</strong> <strong>Glossary</strong> <strong>of</strong> <strong>Spanish</strong> <strong>Geological</strong> <strong>Terms</strong><br />
Exclusive <strong>of</strong> Most Cognates<br />
by<br />
Keith R. Long<br />
Open-File Report 91-0579<br />
This report is preliminary and has not been reviewed<br />
for conformity with U.S. <strong>Geological</strong> Survey editorial<br />
standards or with the North American Stratigraphic Code.<br />
Any use <strong>of</strong> trade, firm, or product names is for<br />
descriptive purposes only and does not imply endorsement<br />
by the U.S. Government.<br />
1991
Preface<br />
In recent years, almost all countries in Latin America have adopted democratic political<br />
systems and liberal economic policies. The resulting favorable investment climate has<br />
spurred a new wave <strong>of</strong> North American investment in Latin American mineral resources<br />
and has improved cooperation between geoscience organizations on both continents.<br />
The U.S. <strong>Geological</strong> Survey (USGS) has responded to the new situation through<br />
cooperative mineral resource investigations with a number <strong>of</strong> countries in Latin America.<br />
These activities are now being coordinated by the USGS's Center for Inter-American<br />
Mineral Resource Investigations (CIMRI), recently established in Tucson, Arizona.<br />
In the course <strong>of</strong> CIMRI's work, we have found a need for a compilation <strong>of</strong> <strong>Spanish</strong><br />
geological and mining terminology that goes beyond the few <strong>Spanish</strong>-English geological<br />
dictionaries available. Even geologists who are fluent in <strong>Spanish</strong> <strong>of</strong>ten encounter local<br />
terminology oijerga that is unfamiliar. These terms, which have grown out <strong>of</strong> five<br />
centuries <strong>of</strong> mining tradition in Latin America, and frequently draw on native languages,<br />
usually cannot be found in standard dictionaries.<br />
There are, <strong>of</strong> course, many geological terms which can be recognized even by geologists<br />
who speak little or no <strong>Spanish</strong>. These cognates have largely been excluded from this<br />
glossary. An exception is made for cognates that are pronounced similarly in English<br />
and <strong>Spanish</strong>, but whose spelling may render them unfamiliar to persons not familiar with<br />
the rules <strong>of</strong> <strong>Spanish</strong> pronunciation.<br />
The glossary is alphabetized in the traditional <strong>Spanish</strong> pattern, thus c/z, //, and n are<br />
treated as separate letters. A list <strong>of</strong> abbreviations, a section on weights and measures,<br />
and a list <strong>of</strong> sources consulted are given in the prefatory material.<br />
This glossary must be considered preliminary. A complete compilation satisfying the<br />
requirements <strong>of</strong> modern lexicography would require more time than the author can<br />
commit. Any user who finds errors or omissions may kindly write to the author at:<br />
Center for Inter-American Mineral Resource Investigations<br />
U.S. <strong>Geological</strong> Survey<br />
210 East Seventh Street<br />
Tucson AZ, 85705-8454
adj<br />
adv<br />
Aig<br />
Ariz<br />
BC<br />
Bol<br />
Br<br />
Calif<br />
CAm<br />
Ch<br />
chem<br />
Col<br />
cryst<br />
Cu<br />
EC<br />
Fr<br />
Guy<br />
Hon<br />
hyd<br />
LAm<br />
Mex<br />
«f<br />
nm<br />
NMex<br />
obs<br />
Par<br />
Pe<br />
pet<br />
Pi<br />
PR<br />
seis<br />
Sp<br />
stats<br />
StoDgo<br />
surv<br />
SWUS<br />
Ur<br />
US<br />
var<br />
vintr<br />
vpr<br />
vtr<br />
Vz<br />
Abbreviations<br />
Abreviaturas<br />
adjective<br />
adverb<br />
Argentina<br />
Arizona<br />
Baja California<br />
Bolivia<br />
Brazil<br />
California<br />
Central America<br />
Chile<br />
chemistry<br />
Colombia<br />
crystallography<br />
Cuba<br />
Ecuador<br />
French<br />
Guyana<br />
Honduras<br />
hydrology<br />
Latin America<br />
Mexico<br />
noun (feminine)<br />
noun (masculine)<br />
New Mexico<br />
obsolete<br />
Paraguay<br />
Peru<br />
petroleum<br />
plural<br />
Puerto Rico<br />
seismology<br />
Spain<br />
statistics<br />
Dominican Republic<br />
surveying<br />
southwest United States<br />
Uruguay<br />
United States<br />
variety<br />
intransitive verb<br />
reflexive verb<br />
transitive verb<br />
Venezuela<br />
adjective<br />
adverbio<br />
Argentina<br />
Arizona (EE.UU.)<br />
Baja California (Mexico)<br />
Bolivia<br />
Brasil<br />
California (EE.UU.)<br />
America Central<br />
Chile<br />
quimica<br />
Colombia<br />
cristalografia<br />
Cuba<br />
Ecuador<br />
frances<br />
Guyana<br />
Honduras<br />
hidrologia<br />
Latinoamerica<br />
Mexico<br />
sustantivo feminino<br />
sustantivo masculine<br />
Nuevo Mexico (EE. UU.)<br />
caida en desuso<br />
Paraguay<br />
Peru<br />
petroleo<br />
plural<br />
Puerto Rico<br />
sismologia<br />
Espana<br />
estadistica<br />
Santo Domingo<br />
levantamiento<br />
suroueste de las EE. UU.<br />
Uruguay<br />
Estados Unidos<br />
variedad<br />
verbo intransitive<br />
verbo pronominal<br />
verbo transitive<br />
Venezuela
Weights and Measures<br />
Pesos y Medidas<br />
The following is a tabulation <strong>of</strong> non-metric weights and measures used in <strong>Spanish</strong>-speaking<br />
countries. Tables <strong>of</strong> metric weights and measures may be found in almost any standard<br />
dictionary <strong>of</strong> the English and <strong>Spanish</strong> languages.<br />
Lo siguente es una compilacion de pesos y medidas no metricos c\ue se emplea en los poises Hispanos. Se<br />
pueda encontrar una tabla de pesos y medidas metricas en cualquier diccionario de ingles o espanol.<br />
Area<br />
Area<br />
A number <strong>of</strong> local measures <strong>of</strong> area are used in Spain and Latin America:<br />
almud (Venezuela)<br />
area (Venezuela)<br />
besana (Cuba)<br />
braza (Panama)<br />
cabelleria (Costa Rica)<br />
cabelleria (Cuba)<br />
cabelleria (Ecuador)<br />
cabelleria (El Salvador)<br />
cabelleria (Guatemala)<br />
cabelleria (Honduras)<br />
cabelleria (Mexico)<br />
cabelleria (Nicaragua)<br />
cabelleria (Santo Domingo)<br />
cantero (Ecuador)<br />
carga (Venezuela)<br />
caro (Santo Domingo)<br />
corral (Latin America)<br />
cuadra (Paraguay)<br />
cuadra (Uruguay)<br />
cuadro (Venez.-East)<br />
cuadro (Venez.-West)<br />
cuartilla (Venezuela)<br />
cuerda (Puerto Rico)<br />
estadal (Nicaragua)<br />
esladal (Spain)<br />
fanega (Mexico)<br />
fanegada (Peru)<br />
fanegada (Spain)<br />
fanegada (Venezuela)<br />
labor<br />
legua (Venezuela)<br />
line (Paraguay)<br />
lino (Paraguay)<br />
litro (Sucre, Venez.)<br />
400 to 25,600 meters2<br />
555 meters2<br />
2,588.77 meters2 (6.25 cordeles2)<br />
2.79 meters2<br />
42.254 hectares<br />
13.420 hectares (324 cordeles2)<br />
11.2896 hectares (16 cuadras2)<br />
44.965 hectares (64 manzanas)<br />
44.72 hectares (64 manzanas)<br />
45.027914 hectares<br />
42.7953 hectares (12fanegas)<br />
45.158 hectares (64 manzanas)<br />
75.46 hectares (1,200 tareas)<br />
441 meters2<br />
1 hectare<br />
1.293 hectares<br />
5,887 hectares<br />
7,500 meters2<br />
I.99 hectares<br />
0.64 to 1.0 hectares<br />
0.64-1.8 hectares<br />
100 to 2,500 meters2<br />
0.393 hectares (4 parcelas)<br />
II.28 meters2<br />
11.182 meters2<br />
3.5663 hectares<br />
0.646 hectares<br />
0.6426 hectares (576 estadales)<br />
0.45 to 4 hectares<br />
71.685 hectares<br />
1,600 to 2,500 hectares<br />
75.1 meters 2
manzana (Argentina)<br />
manzana (Costa Rica)<br />
manzana (El Salvador)<br />
manzana (Guatemala)<br />
manzana (Honduras)<br />
manzana (Nicaragua)<br />
medida (Sucre, Venez.)<br />
media (Venezuela)<br />
parcela (Puerto Rico)<br />
plaza (Venezuela)<br />
roza (Cuba)<br />
roza (Cuba)<br />
sitio de ganado menor (Mex)<br />
sitio de ganado mayor(Mex)<br />
sitio de labor(Mex)<br />
solar (Costa Rica)<br />
solar (Ecuador)<br />
suerte (Nicaragua)<br />
suerte (Uruguay)<br />
tahulla (Spain)<br />
tarea (Cuba)<br />
tarea (El Salvador)<br />
tarea (Santo Domingo)<br />
tarea (Venezuela)<br />
tablon (Venezuela)<br />
topo (Peru)<br />
topo (Peru, Cuzco)<br />
topo (Peru, Puna)<br />
yugada (Peru)<br />
yugada (Spain)<br />
1 hectares<br />
0.699 hectares (8 so/ores)<br />
0.70258 hectares (10,000 varas2)<br />
0.70 hectares (10,000 varas2)<br />
0.697225 hectares (10,000 varas2)<br />
0.744 hectares (10,000 varas2)<br />
625 meters 2<br />
0.5 hectare<br />
982.6 meters2<br />
10 to 20 meters2<br />
0.746 hectares (18 cordeles2)<br />
0.719 hectares (10.000 varas2)<br />
1348.933 hectares<br />
1,755.61 hectares (1 leguas2)<br />
1,755.61 hectares (1 leguas2)<br />
873.62 meters 2 (1,250 varas2)<br />
1,764 meters2 (4 canteros)<br />
1.41 hectares<br />
1,992 hectares (2,700 cuadras2)<br />
0.1118 hectares<br />
69.03 meters 2<br />
280 to 875 meters2<br />
628.8 meters 2<br />
50 to 833 meters 2<br />
0.6 to 1.0 hectares<br />
0.349 hectares<br />
0.272 hectares<br />
0.461 hectares<br />
32.3 hectares (50 fanegadas)<br />
32.198 hectares<br />
Assay Values<br />
Medidas de Tenor<br />
The traditional measure <strong>of</strong> silver grade in the Viceroyalty <strong>of</strong> Peru was marcos par cajon. In<br />
modern day Bolivia and Peru the cajon is defined as 5,000 and 6,000 libras respectively, hence:<br />
marco por cajon (Bolivia)<br />
marco por cajon (Peru)<br />
100 grams per tonne<br />
83.333 grams per tonne<br />
IV
Length<br />
Distancia<br />
punto 1/12 linea<br />
linea 12 puntos<br />
pulgada 12 lineas<br />
cuartd1 8 pulgadas<br />
pie or tercia 12 pulgadas<br />
vara 3 pies<br />
ydrdd 36 pulgadas<br />
braza 2 varas<br />
estado or estadel 2 brazas<br />
cuadra2 75 frrozas<br />
WI//03 5,000 p/es, 1666 2 / 3 varas<br />
1 Except Guatemala, Nicaragua/ and Spain where a cuarta is 9 pulgadas.<br />
2 Except Colombia where 100 brazas is a cuadra and in Ecuador/ Paraguay, and Uruguay where<br />
100 varas is a cuadra.<br />
3 Except Nicaragua where a 7m7/a is 2,200 varas.<br />
In Ecuador the cuarta is known as cuarto or palma. In Guatemala a mecate is 24 paras. In Spain a<br />
oWo is 1 /12 <strong>of</strong> a palma and 1 /28 <strong>of</strong> a uara.<br />
The length <strong>of</strong> a para varies according to country:<br />
Argentina 0.8667 meters<br />
Bolivia 0.866 meters<br />
Brazil 1.111 meters<br />
Chile 0.8359 meters<br />
Colombia 0.8 meters<br />
Costa Rica 0.836 meters<br />
Cuba 0.848 meters<br />
Curacao 0.8477 meters<br />
Ecuador 0.84 meters<br />
El Salvador 0.836 meters<br />
Guatemala 0.8359 meters<br />
Honduras 0.835 meters<br />
Mexico 0.83800 meters<br />
Nicaragua 0.84 meters<br />
Panama 0.80 meters<br />
Paraguay 0.8666 meters<br />
Peru 0.8382 meters<br />
Sao Tome & Principe 4.84 meters<br />
Santo Domingo 0.836 meters<br />
Spain 0.8359 meters<br />
Spain (Burgos) 0.8359 meters<br />
Uruguay 0.859 meters<br />
Venezuela 0.838 meters<br />
A legua is the distance covered by 5,000 footsteps or pies, equivalent to 5,000 to 5,572 meters<br />
depending on the legal definition <strong>of</strong> the para. The legua is sometimes defined as 8,000 footsteps
or pies. The legua is also sometimes reckoned as the distance covered by horseback in one hour<br />
over level terrain. A day's ride on horseback is considered to cover 6 leguas. Legal definitions <strong>of</strong><br />
the legua vary from country to country:<br />
Argentina 6,000 varas 5.20 km<br />
Chile 5,400 varas 4.51386 km<br />
Colombia 6,250 varas 5 km<br />
Cuba 5,000 varas 4.24 km<br />
Ecuador 5 km<br />
El Salvador 4 km<br />
Guatemala 6,666.6667 varas 5.573 km<br />
Honduras 5,000 varas 4.175 km<br />
Mexico 5,000 varas 4.190 km<br />
Paraguay 5,000 varas 4.333 km<br />
Peru 5.556 km<br />
Santo Domingo 5 km<br />
Spain 6,666.667 varas 5.573 km<br />
Spain (Medievel) 5,000 varas 4.1795 km<br />
Uruguay 6/000 varas 5.154km<br />
Venezuela 5.565 km<br />
Other measures <strong>of</strong> length are:<br />
cabulla (Venezuela) 80 meters<br />
codo (Spain) 0.418 meters<br />
cordel (Cuba) 20.352 meters (24 varas)<br />
cordel (Paraguay) 69.88 meters<br />
cuerda (Paraguay) 69.88 meters<br />
linea (Arg., Para.) 2 millimeters<br />
mecate (Costa Rica) 20.064 meters (24 varas)<br />
ona (Santo Domingo) 1.188 meters<br />
paso (Spain) 1.39 meters<br />
sesma (Spain) 13.93 centimeters<br />
tercia (Costa Rica) 27.87 centimeters (1/3 vara)<br />
Volume<br />
Volumen<br />
A cajon (cargo in Spain) is a cubic vara. In Mexico a braza de piedra is defined as a block <strong>of</strong> rock 2<br />
by 4 by 1 varas in dimensions equivalent to 4.7078 cubic meters.<br />
VI
Weight<br />
Peso<br />
grano 1/12 tomin<br />
tomin 12 granos<br />
adarme 3 famines<br />
ochava 2 adarmes<br />
onza 8 ochavas<br />
marco 8 onzas<br />
libra 2 marcos<br />
botija 125 libras<br />
arroba 25 libras<br />
almud 28 libras<br />
cuartilla 50<br />
80<br />
iarrobas<br />
2 quintales<br />
Paraguay<br />
Peru<br />
Santo Domingo<br />
Spain<br />
Uruguay<br />
Venezuela<br />
Other measures <strong>of</strong> weight are:<br />
almud (Venezuela)<br />
botijuela (Venezuela)<br />
bulto (Venezuela)<br />
cabulla (Venezuela)<br />
caja (Nicaragua)<br />
caja (Venezuela)<br />
cajon (Bolivia)<br />
cajon (Peru)<br />
carga (Venezuela)<br />
cotejo (Venezuela)<br />
cuadro (Venezuela)<br />
cuartilla (Venezuela)<br />
cuenta (Venezuela)<br />
barril (Fr. Guiana)<br />
fanega (Venezuela)<br />
lata (Costa Rica)<br />
litro (Venezuela)<br />
madeja (Venezuela)<br />
mancuerna (Honduras)<br />
mancuerna (Venezuela)<br />
mara (Venezuela)<br />
mil (Venezuela)<br />
paca (Venezuela)<br />
pcdito (Venezuela)<br />
paquete (Venezuela)<br />
punto (Venezuela)<br />
quilate (Colombia)<br />
quintal metrico<br />
saco (Venezuela)<br />
terdo (Venezuela)<br />
vara (Venezuela)<br />
Typical loads (cargas) for transporting ore are:<br />
man<br />
rawhide oresack<br />
fiber oresack<br />
mule<br />
wagon<br />
0.459 kilograms<br />
0.46009 kilograms<br />
0.4536 kilograms<br />
0.460093 kilograms<br />
0.4594 or 0.4 kilograms<br />
0.4609 kilograms<br />
9 to 50 kilograms<br />
5 kilograms<br />
18-80 kilograms<br />
20 kilograms<br />
16 kilograms<br />
18 to 63 kilograms<br />
2,300.4651 kilograms<br />
2,760.5581 kilograms<br />
22 to 345 kilograms<br />
5 kilograms<br />
60 kilograms<br />
2 to 10 kilograms<br />
10 to 50 kilograms<br />
100 kilograms<br />
46 to 400 kilograms<br />
453.1 grams<br />
2.5 kilograms<br />
5 to 15 kilograms<br />
1.4375 kilograms<br />
2 to 15 kilograms<br />
50 to 200 kilograms<br />
400 kilograms<br />
50 kilograms<br />
9 to 18 kilograms<br />
1.2 to 2 kilograms<br />
600 kilograms<br />
20 milligrams<br />
100 kilgrams<br />
20 to 60 kilograms<br />
40 kilograms<br />
250 grams<br />
2 arrobas<br />
2-4 arrobas<br />
5-6 arrobas<br />
8-14 arrobas<br />
120 arrobas<br />
Vlll
Coinage - Gold<br />
Moneda - Oro<br />
grano 1/4 quilate<br />
cjuilate 4 granos<br />
real 6 granos<br />
tomin 3 quilates, 2 tomines<br />
peso 4 tomines<br />
castellano or dineral 2 pesos<br />
marco 50 castellanos or dinerales<br />
libra 2 marcos<br />
Coinage -Silver<br />
Moneda - Plata<br />
grano 1/12 tomin<br />
tomin 12 granos<br />
dinero 2 tomines<br />
adarme 3 tomines<br />
ochava 2 adarmes<br />
onza 8 ochavas<br />
marco or dineral 8 onzas<br />
The <strong>Spanish</strong> peso was a silver coin <strong>of</strong> about 25 grams in weight.<br />
IX
Sources Consulted<br />
Fuentes Consultados<br />
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Mexico, Juan Lujan, 523p.<br />
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geologia y metalurgicos: Oruro, Bolivia, Imprenta Universe, 63p.<br />
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369+217p.<br />
de Novo, Pedro, and Chicarro, F., 1957, Diccionario de geologia y ciencias afines: Barcelona, Editorial<br />
Labor, 2 vols., 1685p.<br />
Orellana Silva, Ernesto, 1967, Diccionario ingles-espanol de ciencias de la tierra: Madrid, Interciencia,<br />
335p.<br />
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minerals, 2cd. ed.: New York, Van Nostrand Reinhold Co., 979p.<br />
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common phrases; as used in the translation <strong>of</strong> text, figures, and maps for the Costa Rica Mineral<br />
Resource Assessment Project: unpublished M.S., U.S. <strong>Geological</strong> Survey, 45p.<br />
Seiglie, George A., and Weaver, John D., 1968, Glosario de terminos geologicos inglis-espanol: edicion<br />
preliminar: Mayaguez, Puerto Rico, Universidad de Puerto Rico, Colegio de Agricuitura y<br />
Artes Mecanicos, 84p.<br />
Tomkeieff, S.I., 1983, Dictionary <strong>of</strong> petrology: New York, John Wiley, 680p.<br />
Wyllie, R.J.M., and Argall, George O., Jr., eds., 1975, World Mining glossary <strong>of</strong> mining, processing, and<br />
geological terms; English, Svenska, Deutsch, Francais, Espanol, Rev. ed.: San Francisco, Miller<br />
Freeman, 432p.<br />
XI
aalenenseadj Aalenian | nm Aalenian<br />
aaleniano,-na adj Aalenian<br />
aaleniense adj Aalenian<br />
aaltar nm regolith found in western Flanders<br />
aas nm a type <strong>of</strong> sand dune<br />
a'baco nm a. trough (artesa) in which gold<br />
placers are washed | washtrough, huddle |<br />
graph, chart, nomogram<br />
abajadero nm slope, downgrade<br />
abajador nm [Sp, M£x] tool carrier in (a mine)<br />
abajamiento nm subsidence<br />
abajar vtr to lower, let down | to fall, descend<br />
abajo adv down, below, under<br />
abajor nm depression<br />
abaluartado,-da adj rock mass in the form <strong>of</strong> a<br />
bulwark (baluarte)<br />
abancalado,-da adj terraced<br />
abandonado,-da adj abandoned, as in mina<br />
abandonada which should be distinguished<br />
from una mina agotada which has been<br />
abandoned specifically due to depletion<br />
abandonamiento nm abandonment<br />
abandonar vtr to abandon | to leave, as in los<br />
mineros abandonaron la mina 'the miners left the<br />
mine' | a. un sondeo to abandon a. well<br />
abanico nm fan | fan shaped workings or stopes<br />
| a. aluvial alluvial fan | a. de deyeccion talus<br />
fan, debris cone<br />
abarrancar vtr to excavate | to form gullies<br />
abarranco,-ca adj excavated<br />
abastar vtr to furnish, supply<br />
abastecimiento nm supply | a. de agua water<br />
supply<br />
abasto nm output <strong>of</strong> a mine or mill |<br />
provisioning, supplying | abundance, great<br />
amount | a. de agua water supply<br />
abataje nm breaking ground<br />
abaton nm inaccessible location<br />
aberracidn nf aberration<br />
aberrante nm aberrant<br />
abertal adj cracked, generally by drought<br />
abertura nf opening, fissure | aperture | the<br />
reopening <strong>of</strong> a vein | driving <strong>of</strong> levels or<br />
drifting in a mine | gap or pass . ctween<br />
mountains | cove, small bay | u. de galena<br />
driving, tunneling | a. volcanica vent<br />
abetunado,-da adj very brown<br />
abichita nf [Ch] clinoclase<br />
A-l<br />
abierto,-ta adj open | flat, level (terrain)<br />
abigarrado,-da adj multi-colored, variegated |<br />
mottled<br />
abioglifo nm abioglyph<br />
abi6tico,-ca adj abiotic<br />
abisal adj abyssal<br />
abisico,-ca adj abyssal<br />
abismalo^/ abyssal<br />
abismo nm abyss | deep | steep face<br />
abisolbentico,-ca adj abyssal-benthic<br />
abisolito nm batholith<br />
abisolitico,-ca adj abyssolitic<br />
abisopelagico,-ca adj abyssal-pelagic<br />
ablacidn nf erosion | ablation<br />
ablatografo nm ablatograph<br />
abocardado,-da adj bell or funnel shaped<br />
abocarder vtr to widen the opening <strong>of</strong> or to<br />
something<br />
abocardo nm drill<br />
abocelado,-da adj torus-shaped<br />
abocinado,-da adj trumpet shaped, splayed<br />
abocinamiento nm widening<br />
abocinar vtr to widen an opening<br />
abombado,-da adj convex | swollen<br />
abombamiento nm dome | anteclise<br />
aborregado,-da adj glaciated | striated by the<br />
action <strong>of</strong> glaciers<br />
aborto de oro nm [Pe] nuggets <strong>of</strong> gold found in<br />
potholes (hucucas)<br />
abovado,-da adj arched, vaulted<br />
abra nf reopening <strong>of</strong> a vein | fissure or cleft in<br />
sand | gorge, break or fissure in a mountain |<br />
clearing, opening, gap | cove | [surv] clearing<br />
for line <strong>of</strong> sight<br />
abrasilado,-da adj deep red<br />
abrasion nf erosion by water and wind |<br />
abrasion | scour<br />
abrasivo,-ca adj abradant, abrasive<br />
abrazar vtr to enclose | to fabricate some kind<br />
<strong>of</strong> structure to prevent caving and spalling <strong>of</strong><br />
the ro<strong>of</strong> <strong>of</strong> a mine<br />
abrevadero nm flooded mine | [Col] a water<br />
filled excavation used to work placers<br />
abridura nf [Mex] enlargement (<strong>of</strong> a gallery)<br />
abrigo nm the width <strong>of</strong> a vein | inhabited cave<br />
| a. del carbon [Cerro de Pasco, Pe] argillaceous<br />
rock forming the footwall and hanging wall to<br />
coal seams<br />
abrillantar vtr to cut (diamonds or other<br />
gemstones)<br />
abrimiento nm opening
abrir vtr to drive or open up a working | a. el<br />
terreno to bore | a. una galeria to drift | a. un<br />
pozo to sink a shaft or well | a. un surco to dig a<br />
trench | a. un tunel to tunnel<br />
abrirse vpr to open up, widen (as for a vein)<br />
abrojos nmpl reef, hidden rocks<br />
abronzado nm tetrahedrite | [Mex] chalcopyrite<br />
and other copper ores<br />
abrupto,-ta adj terraced, scarp like | steep,<br />
sheer, abrupt | rugged, craggy<br />
absaroquita nf absarokite<br />
abscisa nf abscissa<br />
absorbencia nf absorption, absorbency,<br />
absorptivity<br />
absorbente nm absorbent, absorptive<br />
absorber vtr to absorb<br />
absorbible adj absorbable<br />
absorcion nf absorption | a. atmosferica<br />
atmospheric absorption | a. del suelo ground<br />
absorption<br />
absorsornm absorber<br />
absorto,-ta adj absorbed<br />
abstraccion nf abstraction<br />
abultar vtr to bulk, swell<br />
abundamiento nm abundance<br />
abundancia nf abundance<br />
abundante adj abundant<br />
abundar vtr to be plentiful, abound | to be rich<br />
in<br />
abundoso,-sa adj abundant<br />
abysal adj abyssal<br />
abysico,-ca adj abyssal<br />
acabalgamiento nm thrust, overthrust<br />
acadiano,-na adj Acadian | nm Acadian<br />
ac£dico,-ca adj Acadian<br />
acadiense m Acadian<br />
acamado,-da adj horizontal<br />
acampanado,-da adj bell shaped<br />
acampanar vtr to flare, splay | [Col] to clean a<br />
placer down to paydirt<br />
acampar vtr to camp | to build a camp<br />
acanalado,-da adj grooved | ribbed | fluted |<br />
corrugated, troughed<br />
acanaladura nf groove, channel<br />
acanalamiento nm grooving<br />
acanelado nm [Zacatecas, Mex] finely<br />
disseminated black, brown and yellow<br />
sphalerite mixed with argentine and<br />
pyrargyrite-proustite<br />
acantilado,-da adj steep, sheer, precipitous | nm<br />
cliff, steep slope<br />
A-2<br />
acantita nf acanthite<br />
acaobado,-da adj mahogany colored<br />
acaparrosado,-da adj copper colored<br />
acardenillado,-da adj stained by copper<br />
carbonate<br />
acarmelado,-da adj caramel colored<br />
acarmirado,-da adj carmine, crimson<br />
acarreadizo,-za adj portable | shifting (sand)<br />
acarreo nm tranported material <strong>of</strong> any kind |<br />
transport <strong>of</strong> ore, supplies, etc. | alluvium |<br />
float, drift | supply | a. acutfero conglomerate<br />
| a. fluvial silt, alluvium | river drift | a.<br />
fluvioglacial fluvioglacial drift | a. hidrdulico<br />
sluicing, hydraulicking | a. morrenico moraine<br />
| de a. placer<br />
acarreos nmpl material carried by a stream, bed<br />
load | drift | float | a. de glaciar glacial drift |<br />
a. del escurrimiento silt run<strong>of</strong>f<br />
acavernar vtr to take the form <strong>of</strong> a cavern<br />
acceso nm entrance<br />
accesorio,-ria adj accessory<br />
accidentado,-da adj rough, uneven, hilly, broken<br />
accidental adj accidental | accessory<br />
accidente nm roughness, uneveness (terrain) |<br />
any topographic feature which disrupts the<br />
regular form <strong>of</strong> a terrain | a. del terreno hills<br />
and valley | a. longitudinal parallelism <strong>of</strong><br />
vertical folds | a. topogrdfico hills and valleys<br />
accion nf share in a. mine, venture, company or<br />
property | capital stock <strong>of</strong> a. company | a.<br />
eolica aeoliation<br />
aceite nm any oil <strong>of</strong> vegetable or mineral origin<br />
aceitero,-ra adj <strong>of</strong> oil, oil<br />
aceiton nm thick oil | dregs, oily sediment<br />
aceitoso,-sa adj oily<br />
aceleracion nf acceleration | a. de gravedad<br />
gravitational acceleration<br />
acelerador nm accelerogram | a. de reaccion<br />
catalyst<br />
acelerdgrafo nm accelerograph<br />
acelerograma nm accelerogram<br />
acelerdmetro nm accelerometer<br />
acendrada n/[Pe] white marl used as a<br />
refractory<br />
acendramiento nm metal refinery<br />
acendrar vtr to refine metal<br />
acequia nf flume | [Pe] brook<br />
acerado nm [Arg] silver sulfide-bearing pyrite<br />
ore | [Peras, Mex] massive gold-bearing pyrite<br />
in milky quartz | [Guadalcazar, Mex]<br />
guadalcazarite | [Mex] stephanite, cerargyrite
or any other steel grey silver mineral | [Potosi,<br />
Bol] jamesonite | a. blanco [Potosi, Bol] white<br />
jamesonite | a. lejizo [Potosi, Bol] slaty<br />
jamesonite | a. zebroso [Potosi, Bol] fibrous<br />
jamesonite<br />
acerado,-da adj steely, color <strong>of</strong> steel, steel grey<br />
acerar vtr to chill, harden<br />
acerdesa nf wad or bog manganese<br />
aceria nf steel works or mill<br />
acerillo nm [Pe] small, granular crystals <strong>of</strong><br />
galena (considered to be rich in silver)<br />
acero nm steel<br />
acetato nm acetate<br />
acetico,-ca adj acetic<br />
acicularod'; acicular<br />
aciculita nf aikinite<br />
acidez adj acid ness | nf acidity<br />
acidificacidn nf acidification<br />
acidificar vtr to acidify | to acidize | vpr to<br />
acidify<br />
acidimetro nm acidmeter<br />
acido,-da adj acidic | nm acid | a acetico acetic<br />
acid | a borico boric acid | a carbolico carbolic<br />
acid | a clorhidrico hydrochloric acid | afenico<br />
carbolic acid | a hidroclorico hydrochloric acid<br />
| a hidriodico hydroiodic acid | a lodoso [pet]<br />
sludge acid | a muriatico hydrochloric acid | a<br />
nitrico nitric acid | a nitrohidroclorico nitric acid<br />
| a nitromuridtico nitric acid | a sulfurico<br />
sulfuric acid<br />
acidula nf mineral water rich in carbonic acid<br />
acidular vtr to acidulate | to acidize<br />
aciete nm oil | a. bruto crude oil | oil in bulk | a.<br />
combustible fuel oil | a. crudo crude oil | a. de<br />
alcjuitran tar oil | a. de alumbrado kerosene | a.<br />
de azufre sulfuric acid | a. de carbon coal oil,<br />
kerosene | a. de esquisto shale oil | a. de horno<br />
fuel oil | a. de lampara [Mex] kerosene | a. de<br />
taladrar drilling oil | a. de vitriolo sufuric acid |<br />
«. lampante [Sp] kerosene | a. mineral petroleum<br />
acije nm vitriol, metal sulfate | a. amarillo<br />
copiapite | a. blanco goslarite | «. de hierro iron<br />
vitriol<br />
acis nm volcanic vent | diapiric fold<br />
aclinico,-ca adj aclinic<br />
aclividad nf acclivity<br />
acimut nm azimuth<br />
acimutal adj azimuthal<br />
acobrado,-da adj copper colored<br />
acocadera nf stone cutter's chisel<br />
acodalamiento nm shoring, trench bracing<br />
A-3<br />
acodalar vtr to shore, brace<br />
acodamiento nm break | shoring, trench<br />
bracing<br />
acodar vtr to shore, brace | [surv] to <strong>of</strong>fset<br />
acometer zrfr to branch<br />
acomodana nf [Pe] ore deposit<br />
aconcharse vpr [Ch] to deposit sediment<br />
acondrito nm achondrite<br />
acontita nf [Ch] mixture <strong>of</strong> pyrite and<br />
arsenopyrite<br />
acopado,-da adj hollowed out, cupped, cup-<br />
shaped<br />
acopio nm waste heap, tailings dump<br />
acordamiento nm concordance <strong>of</strong> strata<br />
acordancia nf conformity, concordance<br />
acordanza nf artificial concordance caused by<br />
tectonic movements<br />
acostado,-da adj recumbent<br />
acostar vtr to take a vertical dip<br />
acostarse vpr to change dip or direction<br />
acotacidn nf boundary marker or monument |<br />
elevation marked on a map or plan | [Cu]<br />
elevation<br />
acotamiento nm setting <strong>of</strong> boundary markers<br />
acotar vtr to delimit, mark the boundaries <strong>of</strong> |<br />
to mark elevations | [surv] to mark out, set<br />
monuments<br />
acotilla nm sledge hammer<br />
acrecencia nf accretion<br />
acrecimiento nm accretion<br />
acrecidn nf accretion<br />
acrepie nm acre-foot<br />
acribar vtr to sift, sieve, screen<br />
acrisolar vtr to refine, assay or purify metals in a<br />
crucible (crisol)<br />
acrisolado,-da adj refined, purified in a crucibJu<br />
acrobatolitico,-ca adj acrobatholitic<br />
acroita nf achroite<br />
acromatico,-ca adj achromatic<br />
actmico,-ca adj actinic<br />
actinic nm actinium<br />
actinota nf actinolite<br />
actinoto nm actinolite<br />
activado,-da adj activated<br />
actividad nf [chem] activity<br />
Actual nm Holocene<br />
acuatico,-ca adj aquatic<br />
acueo,-ea adj aqueous<br />
dcueoglacial adj glacioaqueous<br />
dcueo-igneo,-nea adj hydroplutonic<br />
acuicierre nm aquiclude
acuiclusa nf aquaclude<br />
acuico,-ca adj aquic<br />
acuifera nf aquifer<br />
acuifero,-ra adj water-bearing, aquiferous | a.<br />
artesiano artesian aquifer<br />
acuifuga nf aquifuge<br />
acuitardo nm aquitard<br />
acumbrado,-da adj in the form <strong>of</strong> a pinnacle<br />
acuminado,-da adj conical<br />
acumulacidn nf deposition | accumulation |<br />
accretion<br />
acumulador de mineral nm large ore deposit<br />
acumular vtr to aggrade<br />
acumulativo,-va adj cumulative<br />
acunamiento nm truncation <strong>of</strong> strata or deposits<br />
by erosion | thinning out <strong>of</strong> a vein<br />
acunarse vpr to truncate<br />
acuoso,-sa adj <strong>of</strong> or pertaining to water, aquose<br />
| aqueous, watery<br />
acuosoluble adj water soluble<br />
acustico,-ca adj acoustic<br />
acutangulo,-la adj acute angled<br />
achatado,-da adj oblate<br />
achatamiento nm levelling by erosion<br />
achatar vtr to level by erosion<br />
achicamiento nm draining <strong>of</strong> a mine<br />
achicar vtr to dewater a mine or working<br />
achiflonado,-da adj [Ch] sloping<br />
achique nm dewatering<br />
achua nf [Ch] small, earthenware pan used for<br />
making tests during the patio process <strong>of</strong><br />
amalgamating silver ores<br />
achura w/[Bol] rich ore<br />
adamantino,-na adj adamantine<br />
adamelita nf adamellite<br />
adamina nf adamite<br />
adarme nm half a dram or 1 /16 <strong>of</strong> a <strong>Spanish</strong><br />
ounce<br />
adelantado,-da adj advanced<br />
adelantarufr to advance<br />
adelgazamiento nm the thinning out <strong>of</strong> a bed or<br />
vein | a. cjue termina en curia wedging out<br />
adelgazar vtr to thin out as for veins, beds, etc.<br />
| [Col] to separate gold and concentrates<br />
(jaguas) from gravel in order to facilitate final<br />
washing<br />
adema nm [min] shore, prop<br />
ademado nm [min] timbering, bracing, shoring<br />
| [Mex] well casing | a, de cajon cribwork<br />
ademador nm timberman, shorer<br />
ademadora nf ax used in mine timbering<br />
A-4<br />
ademar vtr to shore, timber (a mine)<br />
ademe nm shore, strut | a. de -prestado temporary<br />
timbering<br />
ademantino,-na adj diamond-like, adamantine<br />
adentro adv inside | mar a. <strong>of</strong>fshore | terra a.<br />
inland<br />
adherido,-da adj adherant | attached | no a.<br />
unattached<br />
adiabatico,-ca adj adiabatic<br />
adiamantado,-da adj diamond-like, adamantine<br />
adicidn nf apposition | addition<br />
adicional nm admixture<br />
adicionante nm admixture<br />
adinola nf desmosite<br />
adipita nf chabazite<br />
adobe nm clayey, loess-like soil that is plastic<br />
when wet but hard when dried and thus<br />
suitable for brickmaking<br />
adobera nf brickyard or brick works<br />
adoguina nf desert pavement<br />
adorberia nf brickyard<br />
adsorber vtr to adsorb<br />
adsorcidn nf adsorbtion<br />
adularitizacidn nf adularitization<br />
adventicio,-cia adj adventitious<br />
adyacente adj adjacent, contiguous<br />
aegerina nf acmite<br />
aegirina nf acmite<br />
aerifero,-ra adj copper-bearing<br />
aerdbico,-ca adj aerobic<br />
aerolito nm aerolite, stony meteorite<br />
aer<strong>of</strong>otografia nf aerial photography<br />
aer<strong>of</strong>otogra'fico,-ca adj aerial photographic<br />
aer<strong>of</strong>otogrametria nf aerial photogrammetry<br />
aer<strong>of</strong>otogrametrico,-ca adj aerial<br />
photogrammetric<br />
aer<strong>of</strong>ototopografia nf topography by aerial<br />
photography<br />
aeromagnetico,-ca adj aeromagnetic<br />
aeromagnetria nf aeromagnetics<br />
aeropoligonacidn nf aerial traversing<br />
aerotopdgrafo nm aerotopograph<br />
aerotriangulacidn nf aerotriangulation<br />
aerovia de cable nf aerial tramway<br />
afallamiento nm [Mex] faulting<br />
afanesa nf aphanite, clinoclase<br />
afanita nf amphibolite | aphanite<br />
afanitico,-ca adj aphanitic<br />
afidico,-ca adj aphyric<br />
a fin adj adjacent | similar | affine<br />
aflnacidn nf refining | a. par cristalizacion
Pattison process for separating silver from lead<br />
afinado nm refining<br />
afinadura nf refining<br />
afinamiento nm refining<br />
afinar vtr to refine metals<br />
afino nm refining | refinery<br />
aflojadero nm [M£x] the s<strong>of</strong>t part <strong>of</strong> a vein<br />
aflojar vtr to loosen, slacken | to remove ore<br />
trapped in an ore chute | a. el canalon [Col] to<br />
pan or wash material accumulated in a ground<br />
sluice (canalon)<br />
afloramiento nm outcrop | exposure<br />
aflorar en vintr to outcrop or crop out | to<br />
spring (ground water) | vtr to sift or sieve<br />
afluencia nf run<strong>of</strong>f, inflow<br />
afluente adj inflowing, affluent, tributary | nf<br />
tributary<br />
afluir vintr to flow in | to be a tributary | to<br />
open, lead<br />
aflujo nm inflow, run<strong>of</strong>f, afflux<br />
aforamiento nm valuation, appraisal | guaging,<br />
measuring<br />
aforar vtr to guage, measure capacity or tonnage<br />
| to measure or guage a flow <strong>of</strong> water | to<br />
appriase<br />
aforo nm guaging, measuring, measurement |<br />
appraisal, assessment, valuation | flow <strong>of</strong> a<br />
river | capacity<br />
afdtico,-ca adj aphotic<br />
afrechera nf [Pe] a finely divided amalgam<br />
which results from the use <strong>of</strong> insufficient<br />
mercury<br />
afrentar un hilo vtr [Col] to make a<br />
perpendicular cut accross a vein to determine<br />
its thickness, dip and strike<br />
afrolitico,-ca adj aphrolitic<br />
afrontonar vtr to muck (ore)<br />
Aftonense nm Aftonian, Giinz-Mindel<br />
interglacial<br />
aga nf red marl<br />
agalisico nm plutonic rocks<br />
agate nf agate | a. en cinta ribboned agate<br />
agente nm agent | a. catalitico catalyst | a. de<br />
tierras land man | a. mineralizador mineralizing<br />
agent | «. mineralizante minerlizing agent | a.<br />
quimico reagent | a. reductor reducing agent<br />
aglomeracidn nf agglomeration<br />
aglomerado nm agglomerate, conglomerate | a.<br />
volcanico agglutinate<br />
aglomerante nm matrix<br />
aglomerar vtr to agglomerate<br />
A-5<br />
aglutinante nm cement<br />
aglutinar ufr to agglutinate, cement | to<br />
aggregate<br />
aglutinizacion nf agglutinization<br />
agmatitico,-ca adj agmatitic<br />
agojia nf a channel cut to remove water from a<br />
mine<br />
agolpamiento nm impounding<br />
agdnico,-ca adj agonic | nf agonic line<br />
agotado,-da adj depleted, exhausted | pinched<br />
or thinned out<br />
agotamiento nm depletion | drainage<br />
agotar vtr to exhaust, deplete | to thin or pinch<br />
out | to drain, dewater<br />
agotarse vpr to pinch or thin out<br />
agradacidn nf aggradation<br />
agradar vtr to aggrade<br />
agregacion nf aggregation<br />
agregado,-da adj aggregated | nm aggregate |<br />
admixture | soil | a. coloidal admixture | a,<br />
cristalino crystal law group | a. escalonado<br />
graded aggregate | a. graduado graded<br />
aggregate | a. grueso coarse aggregate | a.<br />
paralelo crystal group | a. tal como sale run-<strong>of</strong>-<br />
mine aggregate<br />
agrietadura nf crack or fissure<br />
agrietamiento nm Assuring, fracturing<br />
agrimensor nm surveyor | a. de minus mine<br />
surveyor<br />
agrimensura nf surveying<br />
agrio,-ia adj acid or sour | brittle (ores) | rough<br />
(terrain)<br />
agrisado,-da adj greyish, grey<br />
agrupamiento nm group | a, cristalino crystal<br />
law group<br />
agua nf water | luster <strong>of</strong> diamonds and other<br />
precious stones | a. abajo downstream | a.<br />
actdula mineral water rich in carbonic acid | a.<br />
arriba upstream | a. artesiana artesian water | a.<br />
avaiable available moisture | a. blanda s<strong>of</strong>t<br />
water | a. calcdrea hard water | a. capilar<br />
capillary water | a. carbonatada carbonated<br />
water | a. congenita connate water | a. connata<br />
connate water | a. cruda hard water | a. de<br />
achique drained mine water | a. de cal lime<br />
water | «. de cantera quarry water | a. de<br />
cohesion cohesive water | a. de consolidacion<br />
water <strong>of</strong> compaction | a. de constitution water<br />
<strong>of</strong> constitution | a. de cristalizacion<br />
crystallization water | a. de descarga waste<br />
water | a. de expulsion compaction water | a. de
fondo ground water | bottom water (in a well)<br />
| a. deformation connate water | a. degravedad<br />
meteoric water | a. de grieta fissure water | a.<br />
de hidratation water <strong>of</strong> hydration | a. de<br />
imbibition absorption water | a. de infiltration<br />
percolation water | a. de lluvia or llovediza rain<br />
water | a. de madre water from which minerals<br />
have precipitated, mother liquor | a. de<br />
manantial spring water | a. de mar seawater | a.<br />
de mina mine water | a. de noria [Mex] well<br />
water | a. de percolation percolation water | a.<br />
de pie spring water | a. de retention pore water<br />
| a. de saturation saturation water | a. de<br />
sobresaturation dilation water | a. de tratantiento<br />
process water | a. del suelo soil water | a.<br />
delgada s<strong>of</strong>t water | a. dormida stagnant water |<br />
a. dulce s<strong>of</strong>t or fresh water | a. dura hard water<br />
| a. estancada standing or stagnant water | a.<br />
ferruginosa iron-rich mineral water | a. fosil<br />
connate water | a. fredtica ground water,<br />
phreatic water | a. fuerte nitric acid | a. gorda<br />
hard water | a. infiltrada percolation water | a.<br />
juvenil juvenile water | a. limitada bound water<br />
| a. magmdtica magmatic water | a. marginal<br />
edge water | a. metamorfica metamorphic water<br />
| a. meteorica meteoric water | a. mineral<br />
mineral water | a. natural spring water (lacking<br />
minerals) | a. oxigenada oxygenated water | a.<br />
pelicular pellicular water | a. pluvial rain water<br />
| a. potable potable water | a. regia aqua regia |<br />
a. rejuvenetida rejuvenated water | a. salada salt<br />
or saline water | a. salobre brackish or briny<br />
water | a. singenetica connate water | a. somera<br />
shallow water | a. subdlvea water in a stream<br />
bed | a. subterrdnea (underground water | a.<br />
subterrdnea endicada perched ground water | a.<br />
subterrdnea fija fixed ground water | a.<br />
subterrdnea fijada attached ground water | a.<br />
subyacente bottom or edge water | a. sucia<br />
unpotable water | a. surgente artesian water |<br />
a. surgidor artesian water | a. surtidora artesian<br />
water | a. telurica groundwater | a. termal<br />
thermal water | a. vadosa vadose water | a.<br />
vadosiana vadose water | a. viva spring water<br />
aguacero nm waterfall<br />
aguachento,-ta adj watery, full <strong>of</strong> water,<br />
saturated<br />
aguachinar vtr to saturate<br />
aguada nf flood | saturation | inundation <strong>of</strong> a<br />
mine by water | [Ch] spring<br />
aguaducho nm conduit | flood<br />
A-6<br />
agualotal nm [Arg, Cu] bog, swamp<br />
aguallita nf shallow water<br />
agualluvia nf rain water<br />
aguamarina nf aquamarine<br />
aguar vtr to water, dilute<br />
aguarse vpr to be flooded or inundated by water<br />
aguas nfpl mineral waters in general | a. abajo<br />
downstream | a. altos high water | a.<br />
aprovechables water resources | a. arriba up<br />
stream | a. artesianas artesian water | a. bajas<br />
low water | a. broncos [Mex] flood waters | a.<br />
cloacales de infiltration ground water | aguas de<br />
afloramiento upwelling | a. de cabecera [PR]<br />
headwaters | a. estiales low water | a. inmundas<br />
waste water | a. juveniles juvenile waters | a.<br />
madres mother solution | a. meteoricas meteoric<br />
water | a. minimas low water | a. pluviales rain<br />
water | a. residuales waste water | a. someras<br />
[Arg] surface water | a. teluricas [Arg] ground<br />
water | a. termales thermal waters | a. vertientes<br />
run<strong>of</strong>f | a. vivas flowing water<br />
aguatal nm [Ec] pool, swamp<br />
aguazal nm swamp, bog, marsh<br />
agudo,-da adj acute, sharp<br />
agiiilla nf water, fluid<br />
aguja nf pointed peak <strong>of</strong> a mountian | compass<br />
needle | [surv] marking pin, arrow | [Sp]<br />
small vein | [Col] small branch vein or stringer<br />
| a. de marear compass<br />
agujerar vtr to perforate<br />
agujero nm drill hole | fissure | mouth <strong>of</strong> a well<br />
agujilla nf [Hualgayoc, Pe] fibrous stromeyerite<br />
aguosidad nf water, fluid<br />
aguoso,-sa adj watery<br />
aguzado,-da adj tapering<br />
ahebrado,-da adj fibrous<br />
ahechar vtr to sift or sieve<br />
aherrumbrarse vpr to be stained by iron oxide |<br />
to aquire the color <strong>of</strong> rust<br />
ahitar vtr [surv] to set monuments<br />
ahocinarse vpr to run through a narrow canyon<br />
(rivers) | to cut a gorge<br />
ahogado,-da adj flooded, inundated, drowned |<br />
[Mex] embedded<br />
ahogar vtr to submerge, drown<br />
ahogarse vpr to be submerged | a. el oro [Col]<br />
to lose gold by being carried <strong>of</strong>f by water<br />
ahondadura nf sinking, excavation, digging<br />
ahondamiento nm sinking, excavation, digging<br />
ahondar vtr to sink a shaft | to deepen a well<br />
ahonde nm sinking, excavation, digging |
deepening | shaft dug to establish legal title to<br />
a claim | the depth <strong>of</strong> seven varas to which a<br />
discovery shaft must be dug to gain legal title<br />
to a claim<br />
ahuesado,-da adj bone-colored, yellowish |<br />
bone-hard<br />
ahumado,-da adj smokey<br />
aireado,-da adj aerated<br />
aislamiento nm isolation<br />
aiza nf [Bol] caving<br />
ajaquefa nf cave<br />
ajarafe nm tableland<br />
ala nf limb, side, flank<br />
alabandina nf alabandite | hyaline quartz<br />
alabastrado,-da adj alabaster, alabastrine<br />
alabastrino,-na adj alabaster, alabastrine | nf<br />
thin sheet <strong>of</strong> alabaster<br />
alabastrita nf transluscent gypsum<br />
alabastro nm alabaster | a. yesoso transluscent<br />
gypsum<br />
alado,-da adj flange-like<br />
aladrero nm [Sp] timberman (in a mine)<br />
alagadizo,-za adj subject to flooding<br />
alagado nm flooded land<br />
alagar vtr to flood<br />
alagunar vtr [Ch] to flood<br />
alajite nm [Mex] altered rhodonite<br />
alambre nm copper | bronze | metal wire | a.<br />
carril [Arg] aerial tramway<br />
alamontita nf allamontite<br />
alanita nf allanite<br />
alanoca nf an advance on wages yet to be<br />
recieved (these were regularly demanded by<br />
minga labor in <strong>Spanish</strong> colonial Peru)<br />
alasquita nf alaskite<br />
albar adj white | white-hot | nm dry, white<br />
earth<br />
albaro,-ra adj white<br />
albarazado,-da adj whitish<br />
albariza nf lagoon | dry white earth<br />
albarizo,-za adj whitish<br />
albayaldado,-da adj covered by cerussite<br />
albayalde nm cerussite | a. de plomo cerussite |<br />
a. rojo crocoite<br />
albenseoJ; Albian<br />
alberca nf pool, pond<br />
albero nm whitish earth | [Andalusia, Sp]<br />
yellow sand used for construction<br />
albertense adj Albertian<br />
albertita nf asphaltic coal | ash coal | albertite<br />
albiano,-na adj Albian<br />
A-7<br />
albica nf white earth<br />
albienseoJ; Albian | nm Albian<br />
albin nm bloodstone (a var <strong>of</strong> hematite)<br />
albina nf salt pool or marsh | albite (archaic<br />
spelling) | apophyllite | a. de marisma white<br />
deposits (madre de sal) left by salt marshes and<br />
lakes when they dry up<br />
albino,-na adj very white<br />
albitizacidn nf albitization<br />
albitizado,-da adj albitized<br />
albitdfido nm albitophyre<br />
albufera nf coastal lagoon, tidal lagoon<br />
albuhera nf pond<br />
alcalde nm justice <strong>of</strong> the peace | a. canari an<br />
Indian in charge <strong>of</strong> passing along instructions<br />
related to the mita \ a. de minus a Spaniard or<br />
Creole who was the primary judge <strong>of</strong> cases<br />
involving miners and mining | a. veedor <strong>of</strong>ficial<br />
charged with the inspection <strong>of</strong> working and<br />
mining conditions<br />
alcali nf alkali<br />
alcali-basalto nm alkali basalt<br />
alcalinidad nf alkalinity<br />
alcalino,-na adj alkaline | a.-terreo alkaline earth<br />
alcalinoterreo,-rea adj alkaline earth<br />
alcali-riolita nf alkali rhyolite<br />
alcali-riolitico,-ca adj alkali rhyolitic<br />
alcali-traquita nf alkali trachyte<br />
alcance nm reach, range | drift | coverage<br />
alcanzar a vtr to reach to, extend to | vintr to<br />
get as far as a certain point<br />
alcapparosa nf copperas | a. amarillo copiapite |<br />
a. azul chalcanthite | a. blanco goslarite<br />
alcarria nf plateau<br />
alcohol nm galena | [Bol] antimony | a. de<br />
alferos cubic crystals <strong>of</strong> galena | a. de hoja<br />
[Linares, Sp] galena containing little or no<br />
silver<br />
alcor nm hill<br />
alcotana nf pick, mattox | stone cutter's<br />
hammer<br />
alcuba nf dome, cupola<br />
alcubilla nf basin, pond<br />
alea nm risk | randomness | a funcional random<br />
function | a numerico random variable | a<br />
vectorial random vector<br />
aleacidn nf alloy<br />
aleaje nm alloy<br />
alear vtr to alloy<br />
aleatorio,-ria adj random<br />
aleatorizacidn nf randomization
aledano,-na adj bordering, adjacent<br />
alejamiento nm [surv] latitude | alejamientos y<br />
desciaciones latitudes and departures<br />
alejandrita nf alexandrite (a var <strong>of</strong> chrysoberyl)<br />
alemontita nf allemontite<br />
alero nm horizontal bed or layer<br />
alevante nm [Mex] overhand stope<br />
alfagra n/[Sp] channel | gorge<br />
alfaguara nf an abundant spring<br />
alfaque nm shoal, bar<br />
alferez nm an Indian serving as standard bearer<br />
in a fiesta de tabla (his contributions to the<br />
church and its <strong>of</strong>ficials exempted him from the<br />
mita for three years)<br />
alfiler de oro nm [Col] acicular gold<br />
alga nf algea<br />
algaceo,-cea adj algal<br />
algaida nf sand dune<br />
algino,-na adj algal<br />
algomano,-na adj Algoman<br />
alg6nquino,-na adj Algonkian | nm Algonkian<br />
alkalitraquita nf alkali trachyte<br />
alidada nf alidade<br />
aligacidn nf alloy | [chem] bond<br />
alimonados nmpl sulfides and other salts <strong>of</strong><br />
silver<br />
alindar vtr to mark boundaries<br />
alineacion nf lineation | lineament | alignment<br />
alinderar vtr [ Arg, Cu] to mark boundaries<br />
aljez nm crude or natural gypsum<br />
aljezarnm gypsum quarry | gypsum deposit<br />
aljibe nm well | pool | [Col] spring<br />
aljornm gypsum<br />
almacen nm warehouse | reservoir | a. royal<br />
<strong>Spanish</strong> royal storehouse for mercury (the<br />
production and distribution <strong>of</strong> which was a<br />
royal monopoly)<br />
almadaneta nf rock hammer<br />
almaden nm mine | mineral deposit<br />
almadena nf rock hammer<br />
almagra nf red ocher<br />
almagradura nf red ocher coloring<br />
almagral nm deposit <strong>of</strong> red ocher<br />
almagre nm red ocher<br />
almagrero,-ra adj abundant in red ocher | red<br />
ocher bearing<br />
almaina nf rock hammer<br />
almandina nf almandite, almandine<br />
almandino nm almandite, almandine<br />
almartaga nf litharge<br />
almendra nf an almond-shaped diamond<br />
A-8<br />
almendrilla nf fine gravel | fine coal |<br />
[Guadalcazar, Mex] almond sized fragments <strong>of</strong><br />
silicified limestone | [Aguascalientes, Mex]<br />
quartz matrix <strong>of</strong> copper veins<br />
almirez nm mortar | a. y mano mortar and<br />
pestle<br />
almoceda nf [Sp] water rights<br />
almohadillado,-da adj pillow, pillow-like<br />
almojatre nm sal ammoniac<br />
alocroita nf allochroite<br />
alocromatico,-ca adj allochromatic<br />
a!6ctono,-na adj allochthonous<br />
aldfana nf allophane<br />
alogeneo,-nea adj allogenous<br />
alogeno,-na adj allogene, allogerdc<br />
alomado,-da adj undulating<br />
alometamorfismo nm static or load<br />
metamorphism | dynamic metamorphism |<br />
contact metamorphism<br />
alometrico,-ca adj allometric<br />
alomorfita nf allomorphite<br />
aloque adj light red<br />
aloqeita nf allochetite (obs)<br />
alotigeno,-na adj allothigenic<br />
alotipo nm allotype<br />
alotriomorfico,-ca adj anhedral<br />
alotriomorfb,-fa adj allotriomorphic<br />
alotropia nf allotropy<br />
alotropico,-ca adj allotropic<br />
alpestreod; alpine | mountainous<br />
alpino,-na adj alpine<br />
alpinotipico,-ca adj alpinotype<br />
alquifol nm cubical galena | graphite<br />
alquitran nm tar | a. de hulla coal tar | a. mineral<br />
bitumen<br />
alquitranoso,-sa adj tarry<br />
alsbaquita nf alsbachite (obs, granodiorite)<br />
alta nf hanging wall | [New Almaden, Calif]<br />
layer <strong>of</strong> clay in the hanging wall <strong>of</strong> mercury<br />
deposits<br />
altearse vpr to uplift, elevate<br />
alteraci6n nf alteration | weathering | a.<br />
acumulativa accumulative weathering | a.<br />
atmosferica weathering<br />
alterado,-da adj altered<br />
altillano nm [Col] plateau<br />
altillo nm small hill<br />
altimetria nf topographical survey, running<br />
levels, altimetry<br />
altimetrico,-ca adj altimetric<br />
altimetro,-ra adj altimetric | nm altimeter
altiplanicie nf high plateau, tableland<br />
altiplanimetrico,-ca adj topographic<br />
altiplano nm high plain, altiplano, plateau<br />
altitud nf atltitude, elevation<br />
alto,-ta adj high, elevated<br />
alto nm height, hill | elevation | upper part <strong>of</strong> a<br />
vein, deposit or mine | [Mex] hanging wall |<br />
elevated terrain | a. homo blast furnace<br />
altozano nm small hill<br />
altura nf height or summit | altitude, elevation<br />
| level | a. de carga [hyd] head | a. piezometrica<br />
hydraulic head<br />
alud nf avalanche | a. de cenizas ash flow | a. de<br />
fondo groundslide | a. de hielo ice avalanche | a.<br />
de roca rockslide<br />
alumbrar vtr to strike, to find, to discover | to<br />
emerge (ground water) | to treat with alum,<br />
aluminate<br />
alumbre nm alum | a. de piedra alunite | a. de<br />
roca rock alum | a. potdsico potash alum<br />
alumbrera nf alum quarry<br />
alumbrico,-ca adj alum-bearing<br />
alumbroso,-sa adj aluminous<br />
alumina nf alumina<br />
aluminifero,-ra adj aluminum-bearing<br />
aluminio nm aluminum<br />
aluminita n/[Ch] an ore <strong>of</strong> potassium and<br />
aluminum sulfates<br />
aluminoso,-sa adj aluminous<br />
alutacidn nf nuggets <strong>of</strong> gold found in the<br />
weathered surface outcrop <strong>of</strong> veins or deposits<br />
aluvial adj alluvial<br />
aluvidn nm flood | alluvium, wash or silt | a.<br />
fluvio-glacial glacial outwash | a. metalifero<br />
placer | a. soplado [Col] fluvial sediments<br />
deposited by strong currents or cataracts<br />
aluvional adj alluvial<br />
aluvionamiento adj alluviation | silting up |<br />
accretion<br />
aluvionario nm [Arg] alluvial<br />
alveo nm riverbed or channel | source <strong>of</strong> a river<br />
alveolado,-da adj honeycombed<br />
alveolo nm cell<br />
alza n/[Bol] washing <strong>of</strong> gold in a lavadero<br />
alzaguera nf [Sp] spring, source<br />
alzar vtr to hoist, raise, lift<br />
amagamiento nm [Col] spring, source<br />
amalgama nf amalgam<br />
amalgamar vtr to amalgamate<br />
amarillento,-ta adj yellowish<br />
amarillez nf yellow<br />
A-9<br />
amarillo,-lla adj yellow | a. de montana yellow<br />
ocher | nm yellow | [Zacatecas, Mex] gossan<br />
| a. claro light yellow | a. oscuro dark yellow<br />
amarrar las aguas vtr [Col] to protect placer<br />
workings from inundation by means <strong>of</strong> dikes<br />
(trinchos)<br />
amarrar tonga vtr [Col] to lessen the head<br />
(tonga) <strong>of</strong> water flowing through a sluice<br />
amatista nf amythest | a. oriental a violet-<br />
colored variety <strong>of</strong> corundum<br />
amazonita nf amazonite<br />
ambarnm amber | a negro jet (var <strong>of</strong> black<br />
lignite)<br />
ambarino,-na adj amber<br />
ambiental adj environmental<br />
ambiente nm environment | setting | a. de<br />
sedimentation area <strong>of</strong> sedimentation | a.<br />
deposicional depositional environment<br />
ambito nm perimeter | area<br />
ambligonita nf amblygonite<br />
amianta nf amianthus, a fine, silky var <strong>of</strong><br />
asbestos<br />
amianto nm asbestos<br />
amigdaloide adj amygdaloidal | nm<br />
amygdaloid<br />
amigdula nf amugdule<br />
amojonar vtr [surv] to set monuments<br />
amoladera nf [Bol] sandstone<br />
amoladura nf grinding | a. glaciar glacial striae<br />
amolinar vtr [Col] to collect spalled ore in<br />
underground mines for processing | to collect<br />
ore in a ground sluice (canalon) for washing<br />
amoniaco nm ammonia<br />
amonita nf ammonite<br />
amonitico,-ca adj ammonitic<br />
amontonar vtr to pile up, make into heaps<br />
amorfo,-fa adj amorphous<br />
amortizacidn nf pay out, amortization<br />
amparar vtr to obtain title to a property | a. en la<br />
posesion to keep a property in possession by<br />
doing assessment work, etc.<br />
amparo nm maintenance <strong>of</strong> the legal right <strong>of</strong><br />
ownership by continual use<br />
ampelita nf cannel coal | ampelite | a. grdfica<br />
lithographic stone<br />
amplification nf amplification | magnification<br />
amplificador nm amplifier<br />
amplio,-lia adj wide, broad<br />
ampolla nf blister | pocket (<strong>of</strong> ore) | a large<br />
brachyanticline | a. de lava lava blister<br />
ampolloso,-sa adj porous, containing cavities
anaerobico,-ca adj anaerobic<br />
analcima nf analcime, analcite<br />
anabergita nf annabergite<br />
anacarado,-da adj pearly<br />
analisis nm analysis | a. armonico harmonic<br />
analysis | a. cristalqutmico crystal-chemical<br />
analysis | a. cualitativo qualitative test | a.<br />
cuantitativo quantitative test | a. de cedazo<br />
screen or sieve analysis | a. de la variancia<br />
analysis <strong>of</strong> variance | a. discriminante<br />
discriminant analysis | a. factorial factor<br />
analysis | «. ponderal gravimetric analysis | a.<br />
quimico chemical analysis<br />
analista nm and nf analyst<br />
analitico,-ca adj analytic, analytical<br />
analizador nm analyst | analyzer | a. fotometrico<br />
photometric analyzer<br />
analizar vtr to analyze<br />
anasismo nm anaseism<br />
anastomasado,-da adj anastamosing<br />
anastomosarse vpr to anastomose<br />
anatasa nf anatase<br />
anataxia nf anataxis<br />
anaxil adj anaxial<br />
anco nm [Bol] impure native silver | [Ch, Pe] a<br />
silver ore<br />
ancon nm bay, cove<br />
anconada nf large bay, cove<br />
ancho,-cha adj broad, wide | nm width,<br />
breadth<br />
anchura nf width <strong>of</strong> a bed or deposit |<br />
widening <strong>of</strong> a vein, etc. | open terrain<br />
anchuron nm chamber, room (in a mine)<br />
anchuroso,-sa adj wide, large<br />
andadero,-ra adj accessible by foot<br />
andalucita nf andalusite<br />
andana nf lineation <strong>of</strong> hill, etc.<br />
andarivel nm aerial tramway<br />
anden nm [Bol, Pe] terrace (landform)<br />
andino,-na adj Andean<br />
andurrial nm clay pit or deposit<br />
anegable adj subject to flooding<br />
anegar vtr to flood, submerge, inundate<br />
anegarse vpr to be flooded, submerged,<br />
inundated<br />
anfibio nm amphibian<br />
anfibol nm amphibole<br />
anfibolesquisto nm hornblende schist<br />
anfibolico,-ca adj amphibolic<br />
anfibolifero,-ra adj amphibole-bearing<br />
anfibolita nf amphibolite<br />
A-10<br />
anfibolizacidn nf amphibolization<br />
anfingena nf leucite<br />
anfiteatromorrenico nm glacial lodge<br />
anfotero,-ra adj amphoteric<br />
anfractuosidad nf extent <strong>of</strong> broken terrain<br />
angla nf cape<br />
angosto,-ta adj narrow<br />
angostarse vpr to thin, become narrow<br />
angostura nf narrowness | narrow, pass, gorge<br />
| narrows <strong>of</strong> a river<br />
Angoumense nm Angoumian<br />
angra nf cove, small bay<br />
anguena nf [Sp] silver ore<br />
angulo nm angle | corner | a agudo acute angle<br />
| a axil axial angle | a axil aparente apparent<br />
axial angle | a de cabeceo angle <strong>of</strong> pitch | dde<br />
cizalladura angle <strong>of</strong> shear | a de deslizamiento<br />
angle <strong>of</strong> slide | a de discordancia angle <strong>of</strong><br />
unconformity | a de estratification angle <strong>of</strong><br />
bedding | a de extintion angle <strong>of</strong> extinction | a<br />
de incidencia angle <strong>of</strong> incidence | a de inclination<br />
angle <strong>of</strong> dip, pitch | a de pendiente angle <strong>of</strong><br />
slope | a de reflexion angle <strong>of</strong> reflection | a de<br />
refration angle <strong>of</strong> refraction | a de reposo angle<br />
<strong>of</strong> repose or rest | a de rotation angle <strong>of</strong> rotation<br />
| a. de rumbo angle <strong>of</strong> strike | a externo external<br />
angle | a interno internal angle | dobtuso<br />
obtuse angle | a recto right angle | estar en a to<br />
be at an angle | formar un a con to be at an<br />
angle to | formar un a de to form an angle <strong>of</strong><br />
angulosidad nf angularity<br />
anguloso,-sa adj angular<br />
anhedral adj anhedral<br />
anhidrico,-ca adj anhydrous<br />
anhidrita nf anhydrite<br />
anhidro,-ra adj anhydrous<br />
anidado,-da adj nested<br />
aniego nm [Mex] inundation, flooding<br />
aniegue nm [Mex] inundation, flooding<br />
anihedrico,-ca adj alotriomorphic<br />
anillo nm ring, annulus | a. anual annual ring<br />
anisiano,-na adj Anisian<br />
Anisiense nm Anisian<br />
anisometrico,-ca adj anisometric<br />
anisopericlasa nf fault or fracture parallel to a<br />
fold<br />
anisotropia nf anisotropy<br />
anisotropico,-ca adj anisotropic<br />
anisotropo,-pa adj anisotropic<br />
anodo nm anode<br />
anomalia nf anomaly | a. al aire libre free air
anomaly | a. gravimetrica gravity anomaly | a.<br />
magnetica magnetic anomaly<br />
andmalo,-la adj anomalous<br />
anormalidad nf abnormality<br />
anorgandgeno,-na adj inorganic<br />
anorogenico,-ca adj anorogenic<br />
an6rtico,-ca adj asymmetric<br />
anortita nf anorthite<br />
anortoclasa nf anorthoclase<br />
anortosita nf anorthosite<br />
anqueria nf [Pe] silver ore that mimics cubic<br />
galena<br />
anta nf [Pe] copper | a. chacra copper mine<br />
anta'rticoj-ca adj antarctic<br />
antearrecife nm forereef<br />
antecambriano,-na adj Precambrian | nm<br />
Precambrian<br />
antecedente adj antecedent | nmpl preliminary<br />
data<br />
anteclisa nf anteclise<br />
antecubeta nf foredeep<br />
antefosa nf foreland basin, foredeep<br />
antepaisnm foreland<br />
antepecho nm bench (in a mine)<br />
antepozo nm foreshaft<br />
anticlasa nf anticlase<br />
anticlinal adj anticlinal | nm anticline | a.<br />
acostado recumbant anticline | a. asimetrico<br />
asymmetric anticline | a. calvo bald-headed<br />
anticline | a. de sill air saddle | a. desmantelado<br />
breached anticline | a. recostado recumbant<br />
anticline | a. recumbente recumbant anticline |<br />
a. simetrico symmetric anticline | a. tumbado<br />
overturned anticline | a. volcado inverted or<br />
overturned anticline<br />
anticlinorio nm anticlinorium<br />
antiduna nf antidune<br />
antiforma nf antiform<br />
antiguo,-gua adj ancient | primordial | olden,<br />
dating back to <strong>Spanish</strong> colonial times or earlier<br />
| nm mine worked in <strong>Spanish</strong> colonial times<br />
antimoniado,-da adj antimony-bearing<br />
antim6nico,-ca adj antimony, antimonic<br />
antimonio nm antimony | antimony ore | a.<br />
arsenical allemontite | a. blanco valentinite | a.<br />
gris stibnite | a. rojo kermesite<br />
antimonioso,-sa adj antimonial<br />
antidndula nf antiripple<br />
antipertita nf antiperthite<br />
antirizadura nf antiripple<br />
antitetico,-ca adj antithetic<br />
A-II<br />
ant<strong>of</strong>ilita nf anthophyllite<br />
antracita nf anthracite<br />
antracitico,-ca adj anthracitic<br />
antracito,-ta adj black<br />
antracitoso,-sa adj anthracite-bearing<br />
antro nm cave, cavern<br />
anularod1; annular<br />
anil nm indigo blue<br />
anilado,-da adj indigo blue<br />
aovado,-da adj oval, egg-shaped<br />
apacheta nf [Pe] summit or mountain<br />
apogado,-da adj extinct, quenched, extinguished<br />
apacheta nf [Pe] summit, pass<br />
apagar vtr to quench, extinguish | a. un homo to<br />
blow out a furnace<br />
apalache adj Appalachian | nm Appalachian<br />
apalancar vtr to lever | to get ore from a hopper<br />
apantanar vtr to flood, inundate<br />
aparato nm apparatus | system | a. volcanico<br />
volcanic system<br />
aparecer vintr to appear in the literal sense as in<br />
'the ship appeared on the horizon 1 thus las<br />
andesitas aparecen intruidas por unfilon does not<br />
imply any doubt about the intrusive<br />
relationship | to appear on a list<br />
aparejado,-da adj paired<br />
aparejamiento nm pairing<br />
aparejo nm apparatus, rig | a. de perforacion<br />
drilling rig<br />
aparinar vtr to show indications <strong>of</strong> ore<br />
apartado nm sorting or cobbing <strong>of</strong> ore |<br />
smelting | refining or parting <strong>of</strong> gold | smelter<br />
| a. a. mono hand sorting | casa del a. parting<br />
or assay establishment<br />
apartador nm ore picker | smelter<br />
apartamiento nm extraction <strong>of</strong> minerals<br />
apartar vtr to sort or cob ore | to part or refine<br />
during assaying | to extract minerals<br />
aparte adv separately, separated<br />
apatito nm apatite | a. fluor fluorapatite<br />
apeador nm land surveyor<br />
apeadura nf surveying<br />
apear vtr to survey | to shore, timber, brace<br />
apeo nm survey | timbering, shoring<br />
aperatura nf aperture | act <strong>of</strong> opening (a mine)<br />
apice nm apex<br />
apilamiento nm arrangement <strong>of</strong> atoms in a<br />
crystal lattice<br />
apique nm [Col] shaft or winze<br />
apireo nm [Ch] removal <strong>of</strong> ore in hand-carried<br />
baskets
apiri ntn ore carrier (usually a mitayo)<br />
apizarrado,-da adj slate-colored | slaty, with<br />
slaty cleavage | containing slate<br />
apizarramiento ntn slaty cleavage<br />
aplanado,-da adj complanate | leveled<br />
aplanamiento nm levelling<br />
aplanar vtr to level<br />
aplantillar vtr to dress stone according to a<br />
pattern<br />
aplastamiento nm collapsing/ crushing |<br />
flattening | a. de trozos de pomez flattening <strong>of</strong><br />
pumice fragments<br />
aplastar vtr to flatten | to crush<br />
aplastarse vpr to collapse<br />
aplogranito nm aplogranite<br />
aplomado,-da adj lead-colored/ leaden<br />
aplomado nm [Michoacan, Mex] lead-colored<br />
copper ore consisting <strong>of</strong> bornite, chalcocite,<br />
and tetrahedrite<br />
aplomarse vpr to collapse<br />
ap<strong>of</strong>ilita nf apophyllite<br />
apdfisisnm apophyses<br />
apolvillado nm [Guanajuato, Mex] a second<br />
class <strong>of</strong> rich ore from the veta madre yielding<br />
about 750 ounces silver to the ton<br />
apomagmiticOs-ca adj apomagmatic<br />
aporcelenado,-da adj porcellaneous<br />
aportacitfn nf inflow, run<strong>of</strong>f<br />
aporte nm run<strong>of</strong>f, inflow<br />
apreciacidn nf appraisal, valuation, estimation,<br />
estimate<br />
apreciar vtr to appraise, value | to make out |<br />
to see<br />
aprecio nm appraisal, valuation, estimation<br />
apretado,-da adj brief, compressed | compact<br />
apretura nf narrow opening | gorge<br />
aprovechamiento nm use, utilization |<br />
exploitation, development | reclamation<br />
aprovechar vtr to exploit an opportunity | to<br />
exploit, develop or improve any natural<br />
resource<br />
aptiano,-na adj Aptian | nm Aptian<br />
aptense adj Aptian | nm Aptian<br />
aptiense adj Aptian | nm Aptian<br />
apuntamiento nm small outcrop<br />
aquerita nf akerite (obst syenite)<br />
apurar vtr to purify metal | to concentrate ore<br />
aquilatacidn nf assay | alloy<br />
aquilatamiento nm assay<br />
aquilatar vtr to assay precious metals | to<br />
weigh precious stones | to alloy<br />
A-12<br />
aquitaniano,-na adj Aquitanian<br />
aquitaniense adj Aquitanian<br />
aragonito nm aragonite<br />
arancel nm tariff | legal exaction made by a<br />
priest to support himself and his church<br />
arbolita nf harbolite<br />
arborescencia nf arborescence<br />
arborescente adj arborescent<br />
Arcaica nf Archean<br />
arcilla nf clay | any clay mineral | a. alfareia<br />
potter's clay | a. aluminosa steatite, talc | a.<br />
apizarada slate | a. arenosa sandy clay | a.<br />
aurifera gold-bearing clay | a. de batan fuller's<br />
earth | a. caolinica feldspathic shale | a. cocida<br />
baked clay | a. enduredda claystone, clay gall |<br />
a. figulina potter's clay | a. defiltro filter clay |<br />
a. de pedernal flint clay | a. enduricida [Vz]<br />
claystone | a. esquistosa shale | a. ferruginosa<br />
clay ironstone | a. glaciar glacial material | a.<br />
gredosa gouge | a. inflamable bituminous clay |<br />
a. laminar [Vz] shale | a. pedragosa till, boulder<br />
clay | a. pizarrosa shale, slate | a. pldstica<br />
gumbo | a. refractoria refractory clay | a. rq/'a<br />
red clay | a. violacea lithomarge<br />
arcillarnm clay deposit<br />
arcillita nf claystone<br />
arcilloso,-sa adj clayey, argillaceous, argillic<br />
arco nm arc | arch | a. de islas island arc | a.<br />
insular island arc<br />
arcosa nf arkose<br />
arcosico,-ca adj arkosic<br />
arcosita nf arkosite<br />
area nf area | are (100 square meters) | a.<br />
alimentadora watershed | a asismica aseismic<br />
region | a comprobada proven territory | a de<br />
drenaje drainage area | a. de escurrimiento [Col]<br />
watershed | a de exploration exploration area |<br />
a no probada unproven area | a. vertiente<br />
watershed<br />
areg or arej nm erg, sand desert<br />
arena nf sand, grit | gold placer | a. asfdltica tar<br />
sand | a. aurifera gold-bearing sand | a. bruja<br />
fine sand | a. compacta close sand | a. cuarzosa<br />
quartz sand | a. de cantera pit sand | a. de<br />
carboncillo sun-burnt sand | a. de cava sand pit<br />
| a. de conchas shell sand | a. de cuarzo quartz<br />
sand | a. de duna dune sand | a. de escape thief<br />
sand | a. defosasand pit | a. deguijasand pit |<br />
a. de hoyo sand pit | a. de mar beach sand | a. de<br />
mina pit sand | a. de oro gold dust | a. de play a<br />
beach sand | a. de silice silica sand | a. eolica
aeolian sand | a. esqueleal skeletal sand | a.<br />
fluvial river sand | a. fluvialglaciar fluvialglacial<br />
sand | a. franca loamy sand | a. galuconita<br />
greensand, glauconitic sand | a. gastfera gas<br />
sand | a. gorda coarse sand | a. granftica granite<br />
wash | a. gruesa coarse sand | a. lacustre<br />
lacustrine sand | a. marina marine sand | a.<br />
movediza quicksand | a. muerta sand not mixed<br />
with earth | a. orienta [Arg] sand from<br />
Uruguay | a. oscura black sand | a. petroltfera<br />
oil sand | a. pomosa sand formed from pumice<br />
fragments | a. productiva pay sand | «. pr<strong>of</strong>unda<br />
deep (oil-bearing) sand | a. recia coarse sand |<br />
a. verde green sand<br />
arenaceo,cea adj sandy, arenaceous<br />
arenal nm large expanse <strong>of</strong> sand | sandy place<br />
or ground | sand deposit, pit, bar | [Mex]<br />
sand dune<br />
Arenigense nm Arenigian<br />
arenigiano,-na adj Arenigian | nm Arenigian<br />
arenilla nf fine sand | [Mex] tailings | [Vz]<br />
black, magnetite-bearing sand | [Col]<br />
titaniferous iron ore | [Hidalgo, Mex] smalls<br />
from ore sorting | [Ch] copper matte mixed<br />
with slag<br />
arenisca nf sandstone | a. amasada kneaded<br />
sandstone | a. arcosa arkosic sandstone | a.<br />
arcosica arkosic sandstone | a. caliza calcareous<br />
sandstone | a. glauconitica glauconitic<br />
sandstone | a. gruesa grit | a. malaxada<br />
kneaded sandstone | a. margosa marly<br />
sandstone | a. pr<strong>of</strong>unda explotable farewell sand<br />
| a. silicea silicic sandstone | «. verde green<br />
sand | a. volcanica ashy grit<br />
arenisco,-ca adj sandy<br />
areniscoso,-sa adj arenilitic<br />
arenoso,-sa adj sandy, arenaceous, arenose | nf<br />
freestone, sandstone which cleaves easily<br />
areola nf areole<br />
argarita nf marcasite<br />
argayo nm talus<br />
argentado,-da adj silver, silvery<br />
argenteo,-tea adj silver, silvery<br />
argentffero,-ra adj silver-bearing, argentiferous<br />
argentino,-na adj silvery, argentine<br />
argentoso,-sa «, silver-bearing, argentiferous<br />
argila nf clay<br />
argilita nf argil ite<br />
argilolita nf claystone<br />
argiloso,-sa adj clayey, argillaceous<br />
argilla nf clay<br />
A-13<br />
argirita nf argentite | [Bol] marcasite<br />
argirosa nm pyrargirite | argentite<br />
argon nm argon<br />
argoviano,-na adj Argovian | nm Argovian<br />
argoviense adj Argovian | nm Argovian<br />
aridez nf aridity<br />
arido,-da adj arid, dry | nmpl aggregate | a.<br />
finos fine aggregate | a. graduados graded<br />
aggregate | a. gruesos coarse aggregate<br />
arisco,-ca adj rough, uneven (terrain)<br />
arista nf arete | intersection <strong>of</strong> crystal faces at a<br />
right angle | a. polar an arista that cuts an axis<br />
<strong>of</strong> symmetry | a. hidrografica [Vz] watershed<br />
divide<br />
arkosa nf arkose<br />
armadura nf framework | [Me"x] country or host<br />
rock<br />
armar vtr to put together, assemble | v intr to<br />
be hosted by, occur in<br />
armoniaco nm sal ammoniac<br />
annonico,-ca adj harmonic<br />
aromatico,-ca adj aromatic<br />
aromatizacidn nf aromatizacion<br />
arqueada nf part <strong>of</strong> a vein that branches <strong>of</strong>f and<br />
then reunites with the vein in the form <strong>of</strong> an<br />
arch<br />
arqueado,-da adj arcuate<br />
arquamiento nm arching<br />
arqueano,-na adj Archean | nm Archean<br />
arqueociatido nm archaeocyathid<br />
arqueozoico,-ca adj Archeozoic | nm<br />
Archeozoic<br />
arqueria nf [Ch] silver amalgam<br />
arrambarse vpr to be covered by sand (after a<br />
flood)<br />
arrancar vtr to break ground, dig | to mine | to<br />
begin extraction or processing | a. el carbon to<br />
break down coal<br />
arranque nm breaking ground, digging |<br />
mining, extraction | processing | drill pattern<br />
for blasting<br />
arrasarse vpr to be filled with liquids<br />
arrastrado,-da adj dragged along, transported<br />
arrastrar vtr to drag along the ground | to haul,<br />
convey | to unite as veins into one | to scour,<br />
wash out<br />
arrastre nm creep, drag | drag-mill used to<br />
crush ore (generally misspelled in English as<br />
arrastra) \ haulage or conveyance | slope or<br />
inclination <strong>of</strong> a shaft, etc. | footwall | a. de<br />
mano hand operated drag-mill used for
sampling | a. de marca large drag-mill | a. de<br />
mula drag-mill powered by mules | a. ecuatorial<br />
ecuatorial drift<br />
arrastres nmpl silt, suspended matter<br />
arrate nm a pound <strong>of</strong> sixteen ounces<br />
arreador nm a person, usually Creole or mestizo,<br />
used to quicken the pace <strong>of</strong> work in a mine or<br />
mill which largely employed Indians, most <strong>of</strong><br />
whom were mitayos<br />
arrecife nm ridge <strong>of</strong> rock | reef | a. algino algal<br />
reef | a. anular annular reef | a. coralino coral<br />
reef | a. coroligeno atoll reef | a. costero fringing<br />
or shore reef | a. de algas algal reef | a. de barra<br />
or barrera barrier reef | a. franeante fringing reef<br />
| a. literal fringing reef | a. marginal fringing<br />
reef | a. orgdnico organic reef<br />
arremolinamiento nm agglomeration<br />
arremolinarse vpr to agglomerate<br />
arrendadornm lessor<br />
arrendamiento nm lease<br />
arrendar vtr to lease<br />
arrendatario nm lessee, leaseholder<br />
arriada nf flood<br />
arriarse vpr to flood<br />
arribera nf fluvial valley<br />
arrinonado,-da adj boytriodal, nodular<br />
arriscado,-da adj craggy<br />
arroba nf a weight <strong>of</strong> 25 <strong>Spanish</strong> pounds (mules<br />
could carry a maximum <strong>of</strong> 14 arrobas) \ a.<br />
granadina [Col] a weight equivalent to 125<br />
kilograms | a. inglesa quarter | a. marina a<br />
weight <strong>of</strong> 31 or 32 <strong>Spanish</strong> pounds<br />
arroyado,-da adj gullied | nf course <strong>of</strong> an<br />
arroyo<br />
arroyar vtr to gully, form gullies<br />
arroyo nm brook, stream, creek | any ephemeral<br />
water course | dry wash (less precipitous than<br />
a barranca) \ a. desecado nullah | a.<br />
subglaciar glacial stream<br />
arroyuelo nm brooklet<br />
arruga nf small fold<br />
arrugacidn nf folding <strong>of</strong> strata<br />
arrugado,-da adj wrinkled, corrugated, fluted<br />
arrugamiento nm folding <strong>of</strong> strata | small fold<br />
arrugar vtr to fold<br />
arrugia nf gold mine | working <strong>of</strong> auriferous<br />
gravels<br />
arrumbamiento nm strike <strong>of</strong> a bed, vein, etc. |<br />
bearing<br />
arrumbar vtr to outcrop<br />
arseniato nm arsenate<br />
A-14<br />
arsenico nm arsenic | a. piritoso arsenopyrite |<br />
a. rojo realgar<br />
arsenic so,-sa adj arsenious<br />
arseniuro nm arsenide<br />
arsenoblenda nf arsenic blende | a. amarilla<br />
orpiment<br />
arsenopirita nf arsenopyrite<br />
artesa nf gold pan | [Col] river basin | a. de<br />
criba screen pan | a. oscilante cradle (for<br />
washing placers)<br />
artesiano,-na adj artesian<br />
arteson nm wash trough (placer mining)<br />
artico,-ca adj arctic<br />
asbestino,-na adj asbestine, made <strong>of</strong> asbestos<br />
asbesto nm asbestos | a. actinolito actinolite | a.<br />
lignoso ligniform asbestos<br />
asbolana nf asbolite, cobalt ocher<br />
ascender a vintr to come to, amount to, reach<br />
ascenco nm ascent, uplift, raise<br />
ascharita nf szaibelyite<br />
asentamiento nm settling<br />
asentar vtr to rest upon<br />
asentarse vpr to settle<br />
asentista nm contractor, tutworker | a. de azogue<br />
contractor charged with transport <strong>of</strong> mercury<br />
from almacenes reales to silver mining centers<br />
such as Cerro Rico de Potost where the patio<br />
process <strong>of</strong> amalgamation was used for silver<br />
extraction<br />
aserrado,-da adj serrated<br />
asfalteno,-na adj asphaltene | nm asphaltene<br />
asfaltico,-ca adj asphaltic<br />
asfaltifero,-ra adj asphalt-bearing<br />
asfalto nm asphalt | a. de escorias clinker asphalt<br />
| a. mexicano chapapate | a. verde green tar<br />
ashgilliano,-na adj Ashgillian | nm Ashgillian<br />
Ashgilliense nm Ashgillian<br />
asidero nm asiderite<br />
asiento nm settling | sediment that settles in<br />
vats, etc. | a. de minus or a. mineral mineralized<br />
region<br />
asignar a vtr to assign to a formal stratigraphic<br />
unit | to allot or allocate<br />
asimetria nf asymmetry<br />
asimetrico,-ca adj asymmetric<br />
asimilacidn nf assimilation | a. magmdtica<br />
assimilation<br />
asintota nm asymptote<br />
asintdtico,-ca adj asymptotic<br />
asismico,-ca adj aseismic<br />
asociacidn nf assemblage | a. defosiles fossil
assemblage<br />
asociar a vtr to associate or associate with | to<br />
bracket a category, etc.<br />
asombrarse vpr to become flatter | to become<br />
more bed or manto like (veins)<br />
asomo nm outcrop | edge <strong>of</strong> a precipice | inlier<br />
aspa nf cross in the form <strong>of</strong> an X | [Pe] the<br />
intersection <strong>of</strong> two veins<br />
aspar vtr to cross in the form <strong>of</strong> an X<br />
aspecto nm aspect | a. vitreo glassy appearance<br />
aspereza nf roughness, uneveness (<strong>of</strong> terrain)<br />
aspero,-ra adj uneven, rough (terrain) | harsh<br />
asperdn nm sandstone | a. carbomfero<br />
carboniferous sandstone<br />
aspillera nf dissolution surface on carbonate<br />
rocks<br />
asquistico,-ca adj aschistic<br />
asquisto,-ta adj aschistic<br />
asta de venado nf [Pe] anglesite<br />
astenolito nm asthenolith<br />
astenosfera nf asthenosphere<br />
asteria nf asteria or asteriated sapphire | cat's<br />
eye (a var <strong>of</strong> chalcedony)<br />
asterismo nm asterism<br />
Astiano,-na adj Astian<br />
astiense nm Astian<br />
astilla nf chip, splinter, spall | [Pataz, Pe]<br />
particles <strong>of</strong> gold found in mud accumulated in<br />
street gutters after a heavy rain | a. de cantera<br />
quarry spall<br />
astillarvfr to splinter<br />
astillarse vpr to spall | to splinter<br />
astilloso,-sa adj hackly, splintery | easily<br />
chipped<br />
astrago nm soil horizon<br />
astrakanita nf astrakhanite<br />
astr<strong>of</strong>ilita nf astrophyllite<br />
atabacado,-da adj tobacco-colored<br />
atacar con acido vtr to etch with acid<br />
ataque nm [Pe] breaking ground | a. cjuimico<br />
etching | nmpl deads, waste<br />
atascadero nm swamp<br />
atectdnico,-ca adj atectonic<br />
atenuacidn nf attenuation<br />
aterramiento nm alluvium | action <strong>of</strong> silting up<br />
aterrar vtr to silt up<br />
atico,-ca adj Attic<br />
atierre nm silting up | nmpl deads, waste<br />
atincar nm refined borax<br />
atipico,-ca adj atypical<br />
atmdsfera nf atmosphere<br />
A-15<br />
atmosferico,-ca adj atmospheric<br />
atol nm atoll<br />
atoldnnm atoll<br />
atolladero nm swamp<br />
atdmico,-ca adj atomic<br />
atomo nm atom<br />
atraccidn nf attraction<br />
atravesado,-da adj crossed or cut by another<br />
vein, fault, etc. -<br />
atravesar vtr to lay across, span | to go or pass<br />
through, penetrate | to pierce, run through |<br />
to cross, go across | «. a unfilon to cut accross<br />
a vein or lode<br />
atravesarse vpr to lie across, span<br />
atravieso nm [Ch] gap, pass<br />
aturiano,-na adj Aturian | nm Aturian<br />
aturiense adj Aturian | nm Aturian<br />
aturquesado,-da adj turquoise<br />
atutia nf tutty (metal oxides encrusted on<br />
furnaces and chimneys)<br />
auerbaquita nf auerbachite<br />
augengneis nm augengneiss<br />
aulacdgeno nm aulacogen<br />
atunento nm magnification | a. de una playa<br />
advance <strong>of</strong> a beach<br />
auramalgama nf gold amalgam<br />
aureo,-rea adj gold, golden, aureate<br />
aureola nf aureole | a. albitica albitic rim | a. de<br />
contacto contact aureole<br />
auricalcita nf aurichalcite<br />
aurico,-ca adj auric, gold<br />
aurifero,-ra adj gold-bearing, auriferous<br />
autigenesis nf authigenesis<br />
autigenico,-ca adj authigenic<br />
autigeno,-na adj authigenic<br />
autoclastico,-ca nf autoclastic<br />
autocorrelacidn nf autocorrelation<br />
autdctono,-na adj autochthonous | nm<br />
autochthon<br />
autdctonon nm autochthone<br />
aut<strong>of</strong>ormacidn de brechas nf autobrecciation<br />
autointrusidn nf auto-injection, autointrusion<br />
autolito nm autolith<br />
autometamorfismo nm autometamorphism<br />
automorfo nm idiomorphic<br />
autdporo nm autopore<br />
autopotential nm selfpotential<br />
autuniano,-na adj Autunian<br />
Autuniense nm Autunian<br />
Auversense nm Auversian<br />
auxilio nm credit | a. de entre semana credit
<strong>of</strong>fered by a bank enabling a miner to borrow<br />
against the subsequent week's production | a.<br />
ordinario a regular credit extended by a bank at<br />
the beginning <strong>of</strong> the year to miners in a gremio<br />
de azogueros in proportion to the number <strong>of</strong><br />
stamps their mills employed<br />
avalancha nf avalanch | [Arg] flood<br />
avaluar vtr to appraise, value, estimate<br />
avance nm advance | a. de una play a advance <strong>of</strong><br />
a beach | a. del glaciar glacial advance | a. del<br />
mar transgression | a. en direction advance on<br />
strike<br />
avenamiento nm drainage, draining | a.<br />
autogeno autogenic drainage | a. centripetro<br />
internal drainage | a. desordenado aimless<br />
drainage<br />
avenarztfr to drain<br />
avenc nm [Catalonia, Sp] sinkhole<br />
avenida nf flood<br />
aventadero nm [Pe] gold placer | [Arg] shallow,<br />
Quaternary placer | [Col] placer above the<br />
banks <strong>of</strong> a river<br />
aventurino,-na adj aventurine | nf aventurine<br />
averno nm gas pocket (in a coal mine)<br />
avetado,-da adj veined, seamed<br />
aviador nm person who finances a mine,<br />
contracting for the work | person who<br />
advances funds or goods against future<br />
production from a mine<br />
aviadoro,-ra adj subject to assessment<br />
aviar vtr to finance a mine | to grubstake, lend<br />
money and equipment for working a mine<br />
avio nm preparation, provision | implement or<br />
material used in a mine | hereditary lease |<br />
funds or goods advanced for working a mine,<br />
grubstake<br />
aviso sismico nm foreshock<br />
avolcanado,-da adj volcanic<br />
axil adj axial<br />
axilaradj axilary<br />
ayllu nm social group <strong>of</strong> Andean Indians united<br />
through kinship | a drove <strong>of</strong> twenty llamas or<br />
burros in the charge <strong>of</strong> cumuris and used to<br />
transport ore<br />
azabachado,-da adj jet-black<br />
azabache nm jet (a var <strong>of</strong> lignite)<br />
azada nf a tool used to dress stone<br />
azanca nf spring<br />
azar nm chance | al a. at random<br />
azarcon nm crocoite, red lead | a. nativo minium<br />
azamefe nm orpiment<br />
A-16<br />
azimutnm azimuth<br />
azoado,-da adj nitrogenous<br />
azoar vtr to nitrogenate<br />
azoato,-ta adj nitrate | nm nitrate<br />
azoe nm nitrogen<br />
azogado nm mercury poisoning<br />
azogamiento nm mercury poisoning<br />
azogarse vpr to become poisoned by mercury<br />
azogue nm mercury | ore amenable to<br />
amalgamation with mercury | [Pachuca, Mex]<br />
second class ores | [Sinaloa, Mex] ore <strong>of</strong> silver<br />
sulfides, embolite, and copper silicate in a<br />
quartz matrix | [Batopilas, Mex] ore containing<br />
visible silver | a. apolvillado ore very amenable<br />
to amalgamation | a. comun ore generally<br />
amenable to amalgamation | a. ordinario ore<br />
generally amenable to amalgamation | a.<br />
razonable ore marginally amenable to<br />
amalgamation<br />
azogueria nf amalgamation works<br />
azoguero nm [Potosi, Bol] an owner or<br />
renter/operator <strong>of</strong> mines and mills<br />
azogueria nf amalgamating works | the<br />
amalgamation process<br />
azoico,-ca adj azoic | nm azoic | nitric<br />
azotico,-ca adj nitric<br />
azolvarse upr to silt up<br />
azolve nm silt<br />
azolvosnmp/ silt<br />
azucar nf [Col] granular s<strong>of</strong>t white calcite matrix<br />
to native gold ore<br />
azufrado,-da adj sulfurated | sulfur colored |<br />
nm sulfuring | [col] yellow ocher found in<br />
veins | [Hualgayoc, Pe] yellow ore derived<br />
from decomposition <strong>of</strong> galena | [Ch] nitrate <strong>of</strong><br />
soda (caliche) <strong>of</strong> a canary or lemon yellow color<br />
| [Pe] sulfide ore<br />
azufral nm solfatera<br />
azuframiento nm sulfuring<br />
azufrar vtr to sulfurate, impregnate with sulfur<br />
azufre nm sulfur | a. nativo native sulfur | a.<br />
vivo brimstone, molten sulfur, native sulfur<br />
azufrera nf sulfur mine<br />
azufrdn nm pyritic mineral in a pulverulent<br />
condition | [Mex] sulfide ore<br />
azufroso,-sa adj sulfurous<br />
azul adj blue | nm blue, blueness | [Cartagena,<br />
Sp] greenish-blue slate bearing disseminated<br />
galena and iron silicate | [Me"x] silver-bearing<br />
sulfide ores | a. acerado [Zacatecas, Mex]<br />
stephanite | a. celeste sky blue | a. claro light
lue | «. de cobalto cobalt blue | a. de montana<br />
azurite | a. de ultramar ultramarine blue | a.<br />
marino navy blue | a. oscuro dark blue | a.<br />
plomilloso [Zacatecas, Me"x] argentite | a. turqut<br />
indigo blue | a. verdoso petrol blue<br />
azulado,-da adj bluish, blue<br />
azulaque nm bitumen | [Zacualpan, Mex]<br />
argentite | [Fresnillo, Mex] disseminated<br />
pyrite, argentite, silver chloride and native<br />
silver ores distal to veins | a. y cardenilla<br />
[Guerrero, Me"x] silver-rich copper ores <strong>of</strong> blue<br />
and green colors<br />
azulenco,-ca adj bluish<br />
azulillo nm silver-bearing carbonate ore<br />
azulino,-na adj bluish<br />
azulosor-sa adj bluish<br />
azumbre nf a liquid measure <strong>of</strong> capacity<br />
equivalent to about two liters<br />
azurita nf azurite<br />
azurronado nm [Tlalpujahua, Mex] silver-<br />
bearing cubic pyrite<br />
A-17
6<br />
bacilarod; fibrous | bacillary<br />
bacteria nf bacteria | b. tigmotdctica thigmotactic<br />
bacteria<br />
bacularo^y rod-shaped<br />
ba'culo nm staff | [Mex] transit rod, range pole<br />
| b. de Jacob Jacob's staff<br />
badana nf bag made from cured sheepskin used<br />
to transport mercury<br />
bad^nnm gully<br />
bagazo nm drilling mud<br />
bahia nf bay<br />
baja nf fall, drop | b. ley low grade<br />
bajada nf descent | bahada (merging <strong>of</strong> several<br />
alluvial fans) | slope | drop | ebb |<br />
downgrade | ladderway<br />
bajamarnm low tide | ebb<br />
bajante nm low water, low tide<br />
bajar vintr to descend, sink | to lower | to drop<br />
or fall in price | to ebb | vtr to reduce in price<br />
| to lessen<br />
bajial nm low ground subject to flooding<br />
bajio nm bank, shoal | sandbar | lowland<br />
bajo,-ja adj low | bajo de ley <strong>of</strong> low grade<br />
bajo nm footwall | shoal or sandbank<br />
bajociano,-na adj Bajocian<br />
bajocense adj Bajocian<br />
bajociense adj Bajocian<br />
balaje nm balas ruby (a rose-red var <strong>of</strong> spinel)<br />
balanza nf balance | blind shaft | b. de Jolly Jolly<br />
balance | b. de torsion torsion balance<br />
balate nm boundary marker, survey marker |<br />
border <strong>of</strong> a trench | terrace<br />
balde nm bucket | b. de arrastre dragline bucket<br />
| b. de extraction mine bucket | b. de pozo shaft<br />
bucket<br />
balicero nm [Mex] rodman<br />
balsamo nm balsam | b. de Canada Canadian<br />
balsam<br />
banca nf bench<br />
bancada nf stope | bench<br />
bancal nm berm, bench, terrace<br />
banco nm thick bed or stratum | bank or bar <strong>of</strong><br />
a river, etc. | bench (in a quarry or mine) |<br />
[Mexj horse (barren rock within or that deflects<br />
a vein) | b. barrera barrier beach | b. de arena<br />
sandbank, sand bar | b. de avios bank which<br />
advances funds for the working <strong>of</strong> mines | b.<br />
de coral coral reef | b. de cotafija bench mark |<br />
B-l<br />
b. de grava gravel bank | b. de hielo ice floe | b.<br />
de nivel bench mark | b. de piedra thick bed <strong>of</strong><br />
stone | b. de rescates bank where silver bullion<br />
could be exchanged by miners for coin | b. de<br />
no river bank | B. Minero bank, usually state<br />
owned, set up to provide credit to small and<br />
medium-size mining enterprises | b. platero<br />
[Sinaloa, Me"x] argentiferous pyrite<br />
bandaleta nf \ en b. loop<br />
bandeado,-da adj banded | b. groseramente<br />
crudly banded<br />
bandeamiento nm banding<br />
banquear vtr to level, bench | [Col, Vz] to<br />
excavate<br />
banqueo nm leveling, benching | bench | [Col,<br />
Vz] excavation | b. de prestamo [Vz] borrow pit<br />
banqueta nf small bed or bench<br />
banquisa nf pack-ice<br />
banado nm swamp, marsh<br />
bara nf bar (unit <strong>of</strong> pressure)<br />
barcana nf barchan dune<br />
barequear vtr [Col] to extract as much <strong>of</strong> the<br />
paydirt in a placer as possible without<br />
disturbing the overburden<br />
baratina nf barite<br />
barchan nm barchan dune<br />
bario nm barium<br />
barisfera nf barysphere<br />
baritina nf barite<br />
barjdnnm barchan dune<br />
barlovento,-ta adj windward<br />
barniz nf varnish | b. del desierto desert varnish<br />
barquina nf a type <strong>of</strong> large furnace<br />
barra nf bar, ingot | sandbank, bar | b. aviada<br />
limited liability share | b. aviadora share paying<br />
assessments | b. de arena sand bar | b. de caliza<br />
granular oolitica oolitic grainstone bar | b. de<br />
mina hand drill | b. de plata [Me"x] silver ingot<br />
<strong>of</strong> 75 pounds | b. de rio shoal, bar | b. prelitoral<br />
longshore bar | b. viuda limited liability share<br />
barranca nf steep, jagged canyon, wash | cliff,<br />
bluff | gorge, ravine | slope (hill or mountain)<br />
| downgrade | [Arg] riverbank | b. abajo<br />
downhill | b. defalla fault scarp | b. de folia con<br />
erosion faultline scarp<br />
barranco nm gorge | fissure | precipice, cliff |<br />
landslide scar | [Vz] small round pits, about<br />
four feet in diameter, dug to work shallow ores<br />
barrancdn nm gorge, canyon<br />
barrancoso,-sa adj broken, rough (terrain)<br />
barranquero nm placer miner
arranquilla nf [Mex] gully<br />
barreal nm clay pit<br />
barremiano,-na adj Barremian<br />
barremense adj Barremian<br />
barren-dense adj Barremian<br />
barrena nf drill bit | crow bar | b. asimetrica<br />
side hill bit | b. batidora churn drill | b. de<br />
arrastre drag bit | b. de cable cable drill | b. de<br />
canteadar stone cutter's drill | b. de cateo earth<br />
borer | b. de cesto basket bit | b. de chorro jet bit<br />
| b. de muelas reamer bit | b. de perforation<br />
desuiada directional bit | b. regulable expansion<br />
bit | b. tubular core drill | b. sacanucleos core<br />
drill | b. sacatestigos core drill<br />
barrenarufr to drill<br />
barreno nm shot | drill | drill hole | [Col]<br />
drilled well<br />
barrera nf clay pit | barrier | b. prelitoral<br />
longshore bar<br />
barrero nm clay deposit | clay pit<br />
barretero nm miner employed at the working<br />
face<br />
barretdn nm heavy crowbar | [Col] miner's pick<br />
barrial nm clay pit<br />
barril nm barrel | [Fr Guiana] a weight <strong>of</strong> 100<br />
kilograms<br />
barrilla nf [Bol] grains <strong>of</strong> native copper<br />
disseminated in other copper ores | [Bol]<br />
copper or tin ore concentrates<br />
barro nm clay, loam, mud, earth, silt | marl |<br />
[Col] overburden on gold placers | b. de olleros<br />
potter's clay | b. gladariaco till | b. refractario<br />
[Cu] fire clay<br />
barroso,-sa adj muddy, clayey, silty<br />
bartoniano,-na adj Bartonian<br />
bartoniense adj Bartonian<br />
basal adj basal | basement<br />
basaltico,-ca adj basaltic<br />
basalto nm basalt<br />
basamento nm basement<br />
base nm base (<strong>of</strong> crude oil) | b. de erosion base<br />
level <strong>of</strong> erosion<br />
b£sico,-ca adj basic | basal<br />
basitas nfpl [Arg] basic rocks<br />
bastoniforme adj rod-like<br />
batea nf wooden gold pan, traditionally 20<br />
inches in diameter and 25 inches deep | b.<br />
cortadora polished gold pan 16 inches in<br />
diameter and rather less than 2 inches deep | b.<br />
lavadora variety <strong>of</strong> gold pan 16 inches in<br />
diameter and 2 inches deep | b. vetadora gold<br />
B-2<br />
pan 12 inches in diameter with ears or handles<br />
| b. zambullidora an oblong, elliptical gold pan 3<br />
to 4 feet long and 14 to 18 inches wide<br />
bataque nm [BC, M£x] deposits formed by<br />
spring waters<br />
bateria de pisones nf battery <strong>of</strong> stamps<br />
batial adj bathyal<br />
batipelagico,-ca adj bathypelagic<br />
batir vtr [Col] to work placers by force <strong>of</strong> water<br />
| b. el monte to explore for gold placers, etc.<br />
batisfera nf bathysphere<br />
batisismo nm bathyseism<br />
batolito nm batholith<br />
batoniano,-na adj Bathonian<br />
batonense adj Bathonian<br />
batoniense adj Bathonian<br />
bauleao nm [Col] pyrite cubes<br />
bayociano,-na adj Bajocian<br />
Bayociense nm Bajocian<br />
benceno nm benzene<br />
beneficiable adj millable, suitable for<br />
benefeciation, workable<br />
beneficiador nm miller | mill operator | person<br />
employed to supervise the patio process <strong>of</strong><br />
amalgamation <strong>of</strong> silver ores<br />
beneficiar vtr to work or improve a mine | to<br />
derive a pr<strong>of</strong>it from working a mine | to win<br />
metals from ore or concentrate | to smelt,<br />
refine<br />
beneficio nm working <strong>of</strong> a mine | pr<strong>of</strong>its<br />
derived from working a mine | reduction <strong>of</strong><br />
ores and concentrates, smelting | productive<br />
ore | the richest part <strong>of</strong> a deposit | b. de cazo<br />
[M£x] the hot amalgamation process <strong>of</strong><br />
reducing silver ores | b. de hierro amalgamation<br />
with the addition <strong>of</strong> iron filings | b. de metales<br />
concentration <strong>of</strong> ores | b. de patio the cold, patio<br />
process <strong>of</strong> amalgamation <strong>of</strong> silver ores | b. de<br />
toneles the Freiberg or barrel process <strong>of</strong><br />
amalgamating silver ores | b. par cianuradon<br />
cyanide process <strong>of</strong> precious metal recovery | b.<br />
por cloruradon chlorination process <strong>of</strong> metal<br />
recovery | b. porfuego recovery <strong>of</strong> metals by<br />
direct smelting <strong>of</strong> ore<br />
bencina nf gasoline, benzene<br />
bentonico,-ca adj benthic<br />
bentonitico,-ca adj bentonitic<br />
bentosnm benthos<br />
benzol nm benzene<br />
berilio nm beryllium<br />
berilo nm beryl | b. noble transparent beryl | b.
verdemar aquamarine<br />
berma nf berm<br />
bermelldnnm cinnabar<br />
berriasiano,-na adj Berriasian<br />
berriasiense adj Berriasian<br />
berroquena nf granite<br />
bertierita nf berthierite<br />
betumennm bitumen<br />
betunnm bitumen, asphalt | b. dejudea asphalt<br />
| b. marga bituminous marl<br />
bia"xico,-ca adj biaxial<br />
biboro nm botryolite<br />
bicarbonato nm bicarbonate<br />
bidoruro nm bichloride<br />
bicharra nf [Pe] a type <strong>of</strong> small furnace<br />
biddnnm jerry can<br />
bifurcacidn nf bifurcation, branching, forking |<br />
branch <strong>of</strong> a vein that follows along strike<br />
bifurcamiento nm branching <strong>of</strong> a vein<br />
bifurcarse vpr to branch, as for a vein<br />
bimbalete nm [Pe] a crude ore mill consisting <strong>of</strong><br />
a large boulder rocked by a transverse bar<br />
binario nm binary | b. dtgito bit<br />
binche nm [Arg] cubic crystals <strong>of</strong> pyrite found<br />
in gold-bearing conglomerates<br />
binomio,-mia adj binomial<br />
bioestratigrafia nf biostratigraphy<br />
bioestratigra*fico,-ca adj biostratigraphic<br />
bioherma nf bioherm<br />
biolita nf biolith<br />
biolitita nf boundstone<br />
biolito nm organic sediment<br />
bidxido nm dioxide | b. carbanico carbon<br />
dioxide<br />
birrefringencia nf birefringence<br />
birrefringente adj birefringent<br />
bisilicato nm bisilicate<br />
bismalito nm bysmalith<br />
bismutina nf bismuthenite<br />
bismutinita nf bismuthenite<br />
bismuto nm bismuth | b. blenda eulytite | b.<br />
native native bismuth | b. acre oxide or<br />
carbonate <strong>of</strong> bismuth<br />
bisulfato nm bisulfate<br />
bisulfuro nm bisulfide<br />
bitounita nf bytownite<br />
bitumenizacidn nf bituminization<br />
biturnifero,-ra adj bituminous<br />
bituminoso,-sa adj bituminous<br />
bivalencia nf bivalence<br />
bivalenteoJ; bivalent<br />
B-3<br />
blanco,-ca adj white<br />
blandura adj s<strong>of</strong>tness | nf s<strong>of</strong>t, crumbly earth<br />
blanquizal nm pipe clay<br />
blastogranitico,-ca adj blastogranitic<br />
blastoideo,-dea adj blastoid<br />
blastoporfiritico,-ca adj blastoporphyritic<br />
blenda nf blende | sphalerite | b. acaramelada<br />
yellow sphalerite | b. amarilla yellow sphalerite<br />
| b. arsenical orpiment | b. cadmifera<br />
greenockite | b. cornea [Mex] hornblende | b. de<br />
plata pyrargyrite | b. de zinc sphalerite | b.<br />
parda brown sphalerite | b. roja red sphalerite |<br />
b. rubi red sphalerite | b. testdcea fibrous<br />
sphalerite<br />
blonco bueno nm [Guanajuato, Mex] a third<br />
class <strong>of</strong> rich ore from the veta madre <strong>of</strong> about<br />
400 ounce silver to the ton<br />
bloque nm block | b. erratico glacial erratic | b.<br />
defalias fault block<br />
bloque-diagrama nm block diagram<br />
bloquear vtr to block out (ore)<br />
bloqui nm ingot<br />
bobo,-ba adj [Ch] sterile, barren (<strong>of</strong> ore)<br />
boca nf the first opening made on a vein or lode<br />
| mouth or collar <strong>of</strong> a shaft, well or adit |<br />
mouth <strong>of</strong> a river | gap, pass, saddle | b. de<br />
glaciar glacial outlet | ice cave | b. de pozo<br />
wellhead | b. mina portal, mouth <strong>of</strong> an adit<br />
bocal nm mouth, entrance | gap, straight,<br />
narrows | pit head (coal mine)<br />
bocamejora nf auxilliary shaft<br />
bocamina nf portal, entrance to an adit or<br />
tunnel<br />
bocana nf [Col] river mouth<br />
bocarrena nf geode<br />
bocarte nm stamp mill | crusher | drag mill<br />
bocartear vtr to crush ore in a stamp mill<br />
bocarteo nm crushing <strong>of</strong> ore in a stamp mill<br />
bodega nf chamber deposit<br />
bodoque nm argentite | [Batopilas, Me"x] silver<br />
chloride<br />
b<strong>of</strong>ia nf gypsum pipe<br />
b<strong>of</strong>dnwm plug<br />
bogue nm [Sp] boghead coal<br />
bol armenico nm bole (type <strong>of</strong> red mud)<br />
boleo nm nodule <strong>of</strong> ore found in a vein |<br />
concretions <strong>of</strong> ore found in sedimentary ore<br />
deposits | [Mex] waste dump<br />
bolichar vtr to reduce ore in a boliche<br />
boliche nm bowl concentrator used in the patio<br />
process <strong>of</strong> amalgamating silver ores
dlido nm meteorite<br />
bolo nm [Col] a red ocher found in placers<br />
boldn nm cobble, boulder<br />
bolone nm [Ch] rounded fragment <strong>of</strong> copper<br />
ore<br />
bolsa nf richest part <strong>of</strong> a mine | rich pocket <strong>of</strong><br />
ore | small irregular deposit | vug lined with<br />
druse<br />
bolsada nf rich pocket <strong>of</strong> ore | druse | irregular<br />
deposit | pocket, cavity<br />
bolsilla nf small bunch <strong>of</strong> ore<br />
bolsdn nm bolson, internal basin | large pocket<br />
<strong>of</strong> ore<br />
bolsonada nf bunch <strong>of</strong> ore<br />
bolsonero,-ra adj [Bol] in rich ore, in pockets <strong>of</strong><br />
ore<br />
bollandiano,-na adj Bollandian<br />
bollandiense adj Bollandian<br />
bollo nm [Pe] pocket <strong>of</strong> ore<br />
bomba nf bomb (experimental) | pump | b.<br />
calorimetrica calorimetric bomb | b. volcanica<br />
volcanic bomb<br />
bonanza nf large deposit <strong>of</strong> rich ore | ore shoot<br />
| en b. yielding a pr<strong>of</strong>it, in good ore<br />
bono nm bonus | b. de caja cash bonus<br />
bononiano,-na adj Bononian<br />
bononiense adj Bononian<br />
boratera nf [Arg, Bol, Ch] borax deposit<br />
borato nm borate | [Ch] ulexite | b. calcinado<br />
calcined ulexite<br />
borde nm river bank | fringe, edge | b.<br />
continental continental borderland<br />
bordo nm edge | ore remaining in a mine<br />
bdrico,-ca adj boric, boracic<br />
boro nm boron<br />
borra nm [Me"x] matrix, gangue | barren rock |<br />
refined borax | b. de veta s<strong>of</strong>t, altered rock | en<br />
b. in unproductive ground<br />
borrasca nf an unproductive or unpr<strong>of</strong>itable<br />
mine | barren rock | b. de la capa tounging <strong>of</strong> a<br />
bed into adjacent beds | dar or caer en b. to<br />
become unproductive or unpr<strong>of</strong>itable<br />
boruro nm boride<br />
bota nf leather bag used to carry ore out <strong>of</strong> a<br />
mine<br />
botadero nm dump<br />
botamiento nm fault | dislocation<br />
botar vtr to dump<br />
botella nf flask | b. de acido acid bottle | b. de<br />
azogue flask <strong>of</strong> mercury<br />
botija nf [Bol] rawhide bucket <strong>of</strong> about 7 gallons<br />
B-4<br />
capacity<br />
botroide adj botryoidal<br />
bdveda nf cave or cavern | dome, cupola |<br />
chamber deposit | b. de sal salt dome<br />
boveddn nm [Pe] chamber<br />
boya nm [Cerro de Pasco, Pe] rich vein or<br />
pocket <strong>of</strong> ore | b. del cobre copper production<br />
boom in 1887 in Peru due to high world market<br />
prices for copper<br />
bradfordiano,-na adj Bradfordian<br />
bradfordiense adj Bradfordian<br />
bradisismo nm bradyseism<br />
braguetilla nf [Pe] crude smelting furnace, <strong>of</strong>ten<br />
no more than a roasting pit<br />
braquianticlinal nm brachyanticline<br />
braquidpodo nm brachiopod<br />
braquisinclinal nm brachysyncline<br />
brasa n/[Almade'n, Sp] reduction <strong>of</strong> mercury<br />
ore by roasting and distillation<br />
braunespato nm brown spar (any carbonate<br />
colored brown by iron)<br />
braza nf fathom (a unit <strong>of</strong> length)<br />
brazada nf [Col, Vz] fathom (a unit <strong>of</strong> length) |<br />
b. de piedra [Mex] a cubic measure used in<br />
selling building stone<br />
brazaje nm water depth<br />
brazo nm arm | branch <strong>of</strong> a stream | b.<br />
pantanoso bayou<br />
brea nf pitch or tar | asphalt | b. de altjuitran<br />
coal tar | b. de carbon coal tar | b. de hulla coal<br />
tar | b. de tierra earth pitch | b. mineral heavy<br />
oil, maltha, asphalt<br />
brecha nf breccia | opening, break, crevasse |<br />
[Col] prospecting trench | b. conchifera shell<br />
hash | b. de dislocation crush breccia | b. de<br />
falias fault breccia | b. defriccion fault breccia |<br />
b. de huesos bone breccia | b. de trituracion fault<br />
breccia | b. de talud talus breccia | b. filoniana<br />
vein breccia | b. milonita mylonitic breccia | b.<br />
osifera bone breccia | b. poligenica polygenetic<br />
breccia | b. tectonica tectonic breccia | b.<br />
volcanica volcanic breccia<br />
brechacidn nf brecciation<br />
brechifonne ad; brecciated<br />
brechoide adj brecciated<br />
brechoso,-sa adj brecciated<br />
brigada nf party, gang, crew | b. de campo field<br />
party | b. del transito transit party | b.<br />
topografica survey party<br />
brillantez nf brilliance (gems)<br />
brillo nm luster | b. anacarado pearly luster | b.
ceroso waxy luster | b. de antimonio antimonite<br />
| b. de antimonio argentifero miargyrite | b. de<br />
betun pitchy luster | b. de bismuto bismuthenite<br />
| b. de cobalto cobaltite | b. de cobre chalcocite |<br />
b. de hierro red hemetite | b. de plata argentite |<br />
b. diamantino adamantine luster | b. grasiento<br />
greasy luster | b. graso greasy luster | b. grasoso<br />
[Bol] greasy luster | b. mantecoso greasy luster<br />
| b. mate dull luster | b. metdlico metallic luster<br />
| b. nacarado pearly luster | b. resinoso resinous<br />
luster | b. sedoso silky luster | b. terroso earthy<br />
luster | b. vitreo glassy luster<br />
briozoario nm bryozoan<br />
brocado nm [Pe] low-grade ore<br />
brocal nm collar (<strong>of</strong> a shaft) | entrance (to an<br />
adit)<br />
brocantita nf brochantite<br />
broceo nm [Ch] barreness or sterility <strong>of</strong> an ore<br />
deposit | en broceo in barren ground<br />
bromargira nf bromargyrite<br />
bromargirita nf bromargyrite<br />
bromo nm bromine<br />
bromuro nm bromide<br />
bronce nm bronze | pyrite | any mineral <strong>of</strong> a<br />
bronze color | [Pe] iron and copper sulfide<br />
ores | b. bruno [Zacatecas, Me"x] silver-bearing<br />
pyrite | b. amarillo pyrite or chalcopyrite | b.<br />
anilado covellite | b. apretado pyrite | b. blanco<br />
pyrite | [Potosi, Bol] arsenopyrite | b. bueno<br />
[Guanajuato, Me"x] silver-bearing pyrite | b.<br />
chino pyrite or chalcopyrite | b. de cobre<br />
chalcopyrite | b. dorado chalcopyrite | b. malo<br />
[Guanajuato, Mex] pyrite barren <strong>of</strong> silver | b.<br />
morado bornite | b. nochistle chalcopyrite | b.<br />
plateado [Ch] copper sulfide ore | b. platero<br />
silver-bearing pyrite<br />
broncita nf bronzite<br />
bronco nm greenhorn, bronco (new, unproven<br />
oil field employee) | [Mex] loose, rock ready<br />
to fall<br />
bronzado,-da adj [Pe] containing copper and<br />
iron sulfide ore or bronces<br />
bronzudo nm [Me"x] pyritic ore<br />
broquita nf brookite<br />
brosa nf [Bol] low-grade ore<br />
broseo nm [Bol] weathering and decomposition<br />
<strong>of</strong> ores<br />
brosiri nm worker, usually minga used to break<br />
B-5<br />
up ore<br />
brotadero nm seep, spring, source<br />
brotar vtr to outcrop | to seep, emerge<br />
(ground water)<br />
brotazdn de veta nm [Mex] apex <strong>of</strong> a vein<br />
brote nm [Cu] outcrop | b. defiltracion seepage<br />
outcrop<br />
broza nf [Bol, Pe] barren part <strong>of</strong> a vein | low<br />
grade ore | [Bol] coarse-grained minerals |<br />
[Ch] mine waste<br />
buitrdn nm section <strong>of</strong> the patio <strong>of</strong> an ingenio<br />
where each cuerpo <strong>of</strong> ore was treated by the<br />
patio process <strong>of</strong> amalgamation <strong>of</strong> silver ores (a<br />
patio was generally divided into several<br />
buitrones)<br />
brujula nf compass | b. de geologo geologist's<br />
compass | b. minera mine compass<br />
bruno,-na adj dark brown<br />
bruto,-ta adj coarse, rough | crude<br />
buche nm [Col] pocket <strong>of</strong> ore<br />
bucle nm shield<br />
bufa nf [Mazipal, Me"x] beds <strong>of</strong> brown iron ore<br />
and malachite<br />
buncenita nf bunsenite<br />
burdigaliano,-na adj Burdigalian<br />
burdigaliense adj Burdigalian<br />
burga nf hot spring<br />
buro nm chalk | marl<br />
burrear vtr [Sp] to carry ore on one's shoulders<br />
busca nf search, exploration | [Mex] ore taken<br />
out by prospectors<br />
buscadornm prospector<br />
buscar vtr to prospect or explore<br />
buscdnnm prospector<br />
busconero nm prospector<br />
busqueda nf search | b. de informacidn scouting<br />
a well<br />
butano nm butane<br />
buzamiento nm dip, inclination | pitch | angle<br />
<strong>of</strong> dip | [Ch] plunge (in Chile manteo is used<br />
for dip) I b. aparente apparent dip | b. arriba<br />
updip | b. axil plunge | b. del eje plunge | b. en<br />
cupula quaquaversal dip<br />
buzanteod/' plunging<br />
buzar vtr to dip
cabalgar vtr to overlap | to thrust, overthrust<br />
cabalgadornm nappe<br />
cabalgamiento nm thrust, overthrust | c.<br />
horizontal apparent heave | c. inclinado<br />
apparent slip | c. vertical apparent throw<br />
caballeria nf a measure <strong>of</strong> land area<br />
caballete nm [Me"x] horse (waste rock within or<br />
between veins)<br />
caballero nm spoil bank<br />
caballo nm horse (waste rock within or<br />
between veins) | c. de piedra [Amolanas, Ch]<br />
basic, barren intrusions into quartz porphyry |<br />
c. de pena [Col] horse | c. de tepetate horse<br />
cabecera nf headwaters <strong>of</strong> a river | summit <strong>of</strong> a<br />
hill or ridge | [Bol] a working in the upper part<br />
<strong>of</strong> a mine | de c. accross a vein<br />
cabeza n/[Me"x] outcrop | [Col] upper part <strong>of</strong> a<br />
placer working | c. de ingenio stamp (in a mill)<br />
| c. de mina mine entrance | c. de moro a var <strong>of</strong><br />
tourmaline<br />
cabezo nm reef, submerged rock<br />
cabezdn nm rapids | boulder | eddy, whirlpool<br />
| [Col] point at which a current <strong>of</strong> water loses<br />
velocity such that material in suspension is<br />
deposited<br />
cabezuela nf [San Dimas, M£x] concentrates<br />
rich in gold and silver<br />
cablevia nf cableway, aerial tramway<br />
cabo nm cape<br />
cabuchdn nm rough, unpolished ruby<br />
cabujdn nm rough, unpolished ruby<br />
cachalonga nf variety <strong>of</strong> opal<br />
cachi nm [Bol] barite | [Potosi, Bol] siderite |<br />
[Pe] salt | [Chanarcillo, Ch] calcite<br />
cachimba nf [Arg] shallow well, spring | [Me"x]<br />
miner's lamp<br />
cacholongo nm a var <strong>of</strong> opal<br />
cachuela nf rapids<br />
cadena nf chain | c. de Markov Markov chain | c.<br />
de montanas mountain chain | c. montanosa<br />
mountain chain<br />
cadenada nf [surv] length <strong>of</strong> one chain<br />
cadenear vtr [surv] to chai:<br />
cadeneo nm [surv] chainiru<br />
cadenero nm chainman | c. delantero head<br />
chainman | c. trasero rear chainman | c. zaguero<br />
[Arg] rear chainman<br />
cadmio nm cadmium<br />
C-l<br />
caducacidn nf expiration <strong>of</strong> rights to a mining<br />
claim or lease<br />
caducar vtr to forfeit rights to mining claims or<br />
leases (generally by expiration)<br />
caducidad nf act <strong>of</strong> forfeiture to a mining claim<br />
or lease | expiration, lapse<br />
caduco,-ca adj expired, invalid<br />
caenozoico,-ca adj Cenozoic<br />
cagafierro nm slag, scoria<br />
caguacha nf residues <strong>of</strong> amalgam and mercury<br />
washed out <strong>of</strong> a mill<br />
caguachiri nm worker employed to collect<br />
caguachas<br />
caida nf fall, drop | [hyd] head | dip | slip, fall<br />
(<strong>of</strong> rock) | c. de agua waterfall<br />
caidos nmpl fallen or caved ground | fallen<br />
material<br />
caiman nm [M£x] ore chute<br />
cainozoico,-ca adj Cenozoic<br />
caja nf wall rock to a vein or deposit | thickness<br />
<strong>of</strong> a vein | [Ch] river bed | c. de esclusa sluice<br />
box | c. de extraction mine cage<br />
cajalarga nf [Bol] rock easily drilled<br />
cajdnnm canyon, gorge, gully | narrow or box<br />
canyon | a measure <strong>of</strong> quantity <strong>of</strong> ore,<br />
generally weighing fifty quintales \ [Col] clay at<br />
contact between coal and country rock<br />
cajonero nm worker who handles skips | [Me"x]<br />
mouth <strong>of</strong> a shaft<br />
cal nf lime | c. de estano cassiterite<br />
cala nf creek, cove, bight | test boring |<br />
exploration well | c. de prueba test boring<br />
calabres,-esa adj Calabrian<br />
calabriano,-na adj Calabrian<br />
calabriense adj Calabrian<br />
calamaco nm [Me"x] large piece <strong>of</strong> rock difficult<br />
to break up<br />
calamina nf calamine, smithsonite | [Pe]<br />
hydrozincite | [Pe] aurichalcite<br />
calamita nf magnetite, lodestone | siderite |<br />
compass needle | turquoise<br />
calar adj calcareous, lime | nm limestone<br />
quarry<br />
calar vtr to pierce, penetrate, perforate<br />
calca nf copy | c. heliogrdfico blueprint<br />
calcado nm tracing<br />
calcantita nf chalcanthite<br />
calcar vtr to trace, copy<br />
calcareo,-rea adj calcareous, limey | nm<br />
limestone<br />
calcedonia nf chalcedony
calcico,-ca adj calcic, calcium<br />
calciesponja nf calcisponge<br />
calcifero,-ra adj calciferous<br />
calcificacidn nf calcification<br />
calcificar vtr to calcify<br />
calciforme adj cup-shaped<br />
calcilodita nf mud stone (Dunham classification)<br />
calcimetro nm calcimeter<br />
calcinacion nf calcination<br />
calcinador nm calciner, roaster<br />
calcinar vtr to calcine, roast | vpr to calcine<br />
calcio nm calcium | c. clorurado calcium chloride<br />
calcioborita nf dreelite<br />
calco nm a tracing | cast | c. de carga load cast |<br />
c. de deslizamiento slide cast | c. deflujo flow<br />
cast | c. de race bounce cast | c. espigado<br />
chevron mark<br />
calcocita nf chalcocite<br />
calc<strong>of</strong>ilo nm calcophile<br />
calcografia nf chalcography<br />
calcografo nm chalcographer<br />
calcopirita nf chalcopyrite<br />
calcosfera nf chalcosphere<br />
calcosina nf chalcocite<br />
calcosita nf chalcocite<br />
calcotriquita nf chalcotrichite<br />
caldera nf caldera | crater <strong>of</strong> a volcano | winze<br />
| sump | c. vaporizadora de mercurio mercury<br />
boiler<br />
calderilla nf winze<br />
caldero nm cauldron | hundamiento en c.<br />
cauldron subsidence<br />
caledoniano,-na adj Caledonian<br />
calefaccidn nf heal, heating<br />
calefaccionar vtr to heat<br />
calentado,-da adj hot | c. al blanco white hot | c.<br />
al rojo red hot<br />
calentador nm [Rio Tinto, Sp] a reverboratory<br />
furnace used to calcine ore<br />
calero,-ra adj calcareous, limestone | nm lime<br />
burner | operator <strong>of</strong> a lime pit | nf lime pit or<br />
deposit | limestone quarry | lime kiln<br />
calesa nf [Mex] ore bucket<br />
caleta nf creek, cove, inlet<br />
caleza nf [Mex] ore bucket<br />
calibita nf chalybite, siderite<br />
caliborita nf kaliborite<br />
calibracion nf calibration | caliper logging<br />
calibrar vtr to calibrate | to guage, measure<br />
calibre nm caliper | c. micrometrico microcaliper<br />
calicanto nm [Chuquibamba, Fe] auriferous<br />
C-2<br />
conglomerate<br />
calicata n/[Arg] test pit | bore, drill hole<br />
calichal nm [Bol] kaolin | [Mex] second class<br />
silver ore <strong>of</strong> 150 to 1000 ounces per ton silver<br />
caliche nm caliche | salpeter | [Pe, Ch] impure<br />
sodium nitrate | [Arg] cement to borate<br />
nodules found in swamps | [Uco, Pe] clayey<br />
soil above gold veins | [Ch] altered clay<br />
selvages to veins | [Durango, Mex] white,<br />
decomposed clay | [Me"x] feldspar |<br />
[Guanajuato, M£x] travertine | [Col] recently<br />
discovered mineralized vein | [Col]<br />
decomposed calcareous quartz | c. negro<br />
[Cerro de Pasco, Pe] copper sulfides and<br />
sulfoarsenides<br />
calichera nf [Ch, Pe] deposit <strong>of</strong> caliche<br />
calichero,-ra adj relating to caliche<br />
calichoso,-sa adj calcareous | feldspathic<br />
calido,-da adj hot, warm<br />
caliente adj warm, hot | [Mex] oxidized silver<br />
ore<br />
caliz nm calyx | de c. calycal<br />
caliza nf limestone | c. carbonifera carboniferous<br />
limestone | c. cavernosa cavern limestone | c.<br />
conchifera fossiliferous limestine | c. Carolina<br />
coral limestone | c. cristalna crystalline<br />
carbonate (Dunham classification) | marble |<br />
c. de agua dulce freshwater limestone | c. de<br />
arrecife reef limestone | c. feldespdtica arkosic<br />
limestone | c. fetida stinkstone | c. granular<br />
grainstone (Dunham classification) | c.<br />
hidrdulica limestone that yields hydraulic lime<br />
in calcination | c. lodogranular packstone<br />
(Dunham classification) | c. lodosa wackestone<br />
(Dunham classification) | c. magnesiana<br />
dolostone | c. oolitica oolitic limestone | c.<br />
porosa porous limestone<br />
calizo,-za adj calcareous, lime<br />
calocar nm white clay<br />
calomelano nm calomel<br />
caldn nm [Huelva, Sp] iron oxide-bearing<br />
sandstone and limestone<br />
calorescencia nf calorescence<br />
calor nm heat | c. blanco white heat | c. de<br />
hidraracion heat <strong>of</strong> hydration | c. especifico<br />
specific heat | c. latente de fusion latent heat <strong>of</strong><br />
fusion | c. propio geothermal temperature | c.<br />
rojo red heat<br />
caloria nf calorie<br />
caldrico/-ca adj caloric<br />
calorifero,-ra adj heat-producing, giving heat
calorifico,-ca adj calorific<br />
calorimetria nf calorimetry<br />
calorime'trico/-ca adj calorimetric, calorimetrical<br />
calorimetro nm heat probe, calorimeter<br />
caloviano,-na adj Callovian<br />
caloviense adj Callovian<br />
caluma nf [Andes] pass, gap, gorge<br />
calvo,-va adj barren, desert<br />
callana nf[Pe] government refinery or mint<br />
calloviano,-na adj Callovian<br />
calloviense adj Callovian<br />
cama nf layer, bed, stratum | c. de roca bedrock<br />
camada nf bed, stratum, layer<br />
ca'mara nf chamber, room j ore shoot, chamber<br />
deposit | c. de minus chamber <strong>of</strong> mines | c.<br />
magmdtica magma reservoir<br />
cambio nm change, variation | c. de fades facies<br />
change | c. de naturaleza variation in<br />
sedimentary material | c. de nombre renaming |<br />
c. de potenda variation in thickness<br />
cambriano,-na adj Cambrian<br />
c£mbrico,-ca adj Cambrian<br />
caminamiento nm [Ec] traversing<br />
camino nm [Bol] gallery, drift<br />
camidn nf truck | c. de disparo shooting truck |<br />
c. de registro recording truck | c. de taladro<br />
drilling truck<br />
campamento nm camp, campground | c. minero<br />
mining camp<br />
campana nf level country<br />
campaniano/-na adj Campanain<br />
campaniense adj Campanian<br />
campanil nm [Bilbao, Sp] hematite | [Sierra<br />
Nevada, Sp] siderite<br />
campilita nf campylite<br />
campista nf tributor, lessor<br />
campamiento minero nm mining camp<br />
campo nm field | mining camp | c. aurifero gold<br />
field | c. coerdtivo coercive field | c. de cumbres<br />
| c. de kames kame field | c. de nieves firn field |<br />
c. de un microscopic field <strong>of</strong> view (microscope) |<br />
c. del petroleo oil field | c. gasffero gas field | c.<br />
magnetico magnetic field | c. minero mining<br />
camp | c. petrolero oil field | c. productor<br />
producing field | c. raso flat, open country<br />
canal nm channel j flume, race, ground sluice |<br />
c. de erupdon chimney, pipe<br />
canalado,-da adj grooved, fluted, corrugated<br />
canalizacidn nf channelization<br />
canaldn nm ground sluice<br />
cancagua nf [Ch] a stiff, sandy soil<br />
C-3<br />
cancha nf ore bin | [Pe, Ch] mine dump | place<br />
near the entrance <strong>of</strong> a mine where ore was<br />
sorted by hand<br />
canchal nm rocky or stony place | [Me*x]<br />
moraine<br />
canchamina n/[Ch] work area around a shaft or<br />
adit<br />
canchaminero nm [Ch] surface worker in a mine<br />
cancho nm large rock, boulder<br />
candencia nf incadescence<br />
candente adj incadescent, red-hot<br />
candil de minero nm miner's lamp<br />
canel nm [Sp] cannel coal<br />
caney nm small bay | [Col] river bend<br />
canga nf any red lateritic soil | iron-bearing<br />
laterite | [Arg, Bol] iron-bearing soil<br />
cangagua n/[Col] clay suitable for adobe bricks<br />
cangahua nf [Ec] hardpan<br />
cangalla nf tailings | [Ch] stolen ore<br />
cangalli nm [Tipuani, Bol] false bedrock <strong>of</strong><br />
ferruginous quartz arenite that overlies gold-<br />
bearing sand<br />
cangildn nm bucket | [Ec] mud hole | [PR]<br />
small waterfall | c. de arrastre dragline bucket<br />
cangrejero nm [Col] pockets <strong>of</strong> gold occuring in<br />
smaller veins or venillas<br />
canguildn nm [Ch] bucket<br />
candn nm royalty, tax | rate | c. bruto gross<br />
royalty | c. de adidon overriding royalty | c. de<br />
derre shut-in royalty | c. de compensadon<br />
compensation royalty | c. del propietario fee<br />
royalty | c. de partidpadon royalty interest | c.<br />
exento de cargos non-participating royalty | c.<br />
fijo fixed royalty | c. no venddo unaccrued<br />
royalty | c. sin gustos free ride<br />
cantal nm stone or pebble | spall | stony<br />
ground<br />
cantara nf a liquid measure equivalent to 13.16<br />
liters | [Durango, Me"x] white, decomposed<br />
clay<br />
ca'ntaro nm [Guadalcazar, Pe] retort for reducing<br />
mercury ores<br />
cantearirtr to cut stone<br />
cantera nf quarry | quarry stone, hewn stone,<br />
ashlar, freestone | [Vz] small veinlets <strong>of</strong> quartz<br />
detached from veins | c. de arena sand pit | c.<br />
de grava gravel pit | c. de prestamo borrow pit<br />
canteria nf quarry | quarrying, hewing <strong>of</strong> stone<br />
| freestone, ashlar, hewn stone | [Mex] tuff<br />
cantero nm stonemason | sum<br />
cantidad nf quantity, amount | c. de rotadon
amount or degree <strong>of</strong> rotation<br />
cantil nm cliff | shelf | cliff edge<br />
cantillo nm small stone, pebble<br />
cantizal nm stony ground<br />
canto nm edge or border | thickness | stone or<br />
pebble | boulder | fragment <strong>of</strong> flint | dressed<br />
stone | c. errdtico glacial erratic | c. grande<br />
cobble | c. rodado boulder, cobble, pebble | c.<br />
sin labrar rough ashlar | de c. edgewise, on<br />
edge<br />
cantorral nm stony ground<br />
canturrdn nm [Col] manganese oxide<br />
cana nf gallery | c. de mina gallery | c. de volar<br />
blasting hole<br />
Canada nf valley, gorge, ravine | eroded river<br />
bank | the immediate drainage formed by a<br />
spring | [Arg] inlet, estuary | [Col, PR] stream<br />
canaddnnm canyon, gorge<br />
cano nm gallery (in a mine)<br />
canon nm canyon | drift, gallery | c. submarine<br />
submarine canyon<br />
canutillo nm [Col] fine emerald<br />
caolin nm kaolin, china clay<br />
caolinico/-ca adj kaolinic<br />
caolinita nf kaolinite, kaolin<br />
caolinizacidn nf kaolinization<br />
capa nf bed, layer, seam, stratum | stratabound<br />
deposit | c. acuffera aquifer | c. barrera blocking<br />
layer | c. basal bottomset bed | c. cabalgante<br />
nappe | c. clave key bed | c. ccbijante nappe | c.<br />
competente competent bed | c. de carbon coal<br />
seam | c. defilon beded vein | c. de hielo ice cap<br />
| c. de velocidad velocity bed | c. dorsal topset<br />
bed | c. freatica acuifer | c. frontal foreset bed |<br />
c. fuselar fusellar layer | c. gasifera gas cap | c.<br />
ondulttico wave stratum | c. osifera bone bed |<br />
c. reflectora reflecting bed | c. roja red bed | c.<br />
superior topset bed | c, vegetal top soil | en<br />
capos layered, bedded<br />
capa-fildnnm bedded vein<br />
capacidad nf capacity | c. electrica capacitance |<br />
c. termica heat capacity<br />
capacho nm bucket | [Pe, Ch] rawhide bag for<br />
carrying ore <strong>of</strong> 2 to 4 arrobas capacity | c. de<br />
extraccion mine bucket<br />
caparazonnm carapace | shell<br />
caparrosa nf melanterite | copperas | vitriol | c.<br />
amarillo copiapite | c. azul blue vitriol | c.<br />
blanda goslarite<br />
capataz nm foreman | c. de turno shift boss<br />
capilaro^/ capillary<br />
C-4<br />
capilaridad nf capillarity<br />
capillo nm cupel<br />
capita nf band, small seam, thin layer<br />
capitin nm foreman | c. de la mita Spaniard or<br />
Creole in charge <strong>of</strong> the mita \ c. de yanaconas<br />
person in charge <strong>of</strong> Indians permanantly<br />
dwelling in a mining center, as opposed to<br />
mitayos who lived elsewhere | c. enterador<br />
Indian in charge <strong>of</strong> his community's mitayos<br />
during their service<br />
caporal nm [Vz] foreman<br />
capote nm [Col] topsoil<br />
c£psula nf laboratory dish<br />
capotero,-ra adj shallow<br />
captacidn nf capture, piracy | c. en abanico arc<br />
shooting<br />
captura nf capture | c. de rto river capture or<br />
piracy<br />
capuchdn nm cap rock<br />
cara nf face | facet <strong>of</strong> a crystal | wall <strong>of</strong> a fissure<br />
| panel <strong>of</strong> stone in a quarry | c. de crucero<br />
cleavage face<br />
cirabe nm amber<br />
caraca nf [Col] thin layer <strong>of</strong> hard clay between<br />
bedrock and paydirt in placers<br />
caracol adj spiral<br />
cara'cternm character | extent<br />
caracteristica nf characteristic, feature<br />
caradociano,-na adj Caradocian<br />
caracociense adj Caradocian<br />
carambano nm icicle<br />
caramero nm [Vz] flood debris<br />
carapacho nm carapace<br />
carbeno nm carbene<br />
carbdnnm coal | carbon | charcoal | cinder |<br />
graphite | c. aglomerante coking coal | c.<br />
aglutinante coking coal | c. algal algal coal | c.<br />
almendrillo nut coal | c. antracitoso anthracite |<br />
c. bituminoso bituminous coal | c. brillante<br />
glance coal | c. candeloide cannel coal | c.<br />
conglomerate coking coal | c. craso coking coal<br />
| c. de algas boghead coal | c. de ampelita cannel<br />
coal | c. de astilla splint coal | c. de bujia cannel<br />
coal | c. de cok coking coal | c. degas [Vz] gas<br />
carbon | c. de gaz cannel coal | c. de llama corta<br />
hard coal | c. de llama larga s<strong>of</strong>t coal | c. de<br />
piedra coal | c. de piedra pasada coke | c. de<br />
retorta gas carbon | c. de tierra coal | c.<br />
entrozado [Me"x] broken coal | c. fosil coal | c.<br />
granado nut coal | c. graso coking coal | c.<br />
grueso large coal | c. lustroso pitch coal | c.
menudo small coal | c. mineral coal | [Pe] peat |<br />
c. no aglutinante non-coking coal | c. para<br />
calderas steam coal | c. pardo lignite | c. pezoso<br />
pitch coal | c. seco non-coking coal | c.<br />
semigraso semibituminous coal | c. tal como sale<br />
run-<strong>of</strong>-mine coal | c. vegetal charcoal<br />
carbonaceo,-cea adj carbonaceous<br />
carbonada nf load <strong>of</strong> coal<br />
carbonado nm black diamond, carbonado<br />
carbonar vtr to turn into charcoal, carbonize<br />
carbonate nm carbonate | [Sp] lead ore | c.<br />
calcico calcium carbonate | c. de hierro siderite |<br />
c. de sodio soda | c. de sodio anhidrico soda ash |<br />
c. magnesico magnesite | c. plomizo cerussite<br />
carboncillo nm small coal, fine coal, slack | coal<br />
dust<br />
carbonear vtr to turn into charcoal, carbonize |<br />
to load coal<br />
carboneo nm charcoal making<br />
carbonera nf coal bin or bunker | coal mine<br />
carboneria nf coal mine | coal shed or yard<br />
carbonero,-ra adj coal | nm coal mine | coal<br />
merchant, coalman<br />
carbdnico,-ca adj carbonic<br />
carbonifero,-ra adj carboniferous | coal-bearing<br />
carbonilla nf coal dust, fine coal, pulverized<br />
coal | cinder<br />
carbonizacidn nf carbonization<br />
carbonizar vtr to carbonize | to burn | vpr to<br />
carbonize<br />
carbono nm carbon | c. organico organic carbon<br />
| carbono 14 carbon-14<br />
carbonoso,-sa adj carbonaceous<br />
carborundo nm corundum<br />
carburo nm carbide<br />
carcamo nm drain (<strong>of</strong> a mine) | flume<br />
carcava nf gully, ditch<br />
carcavdn nm gorge<br />
carcomar vtr to erode, undermine | vpr to be<br />
undermined<br />
cardenilla nf [Batopilas, Mex] proustite<br />
cardenillo nm verdigris<br />
carear vtr to face (stone)<br />
carga nf load | loading | [hyd] head | [met]<br />
heat, charge | mule-load <strong>of</strong> 8 to 14 arrobas \<br />
man load <strong>of</strong> about 2 arrobas \ duty, tax, charge<br />
| [Bol] ah red rock useful as a guide to ore<br />
[Col] pebbles and cobbles found in placers |<br />
[Sandia, Pe] overburden on placers | c. de mula<br />
load <strong>of</strong> about 8 to 14 arrobas \ c. del lecho bed<br />
load | c. disuelta dissolved load | c. mineral ore<br />
C-5<br />
| c. suspendida suspended load<br />
cargado,-da adj loaded | heavy, dense<br />
cargamento nm load, shipment | cargo<br />
cargar vtr to load | to charge (a furnace) | v intr<br />
to load up<br />
cargo nm burden, loading | load <strong>of</strong> stone <strong>of</strong><br />
about one third <strong>of</strong> a cubic meter | [Granada,<br />
Sp] one cubic vara<br />
carhua nf [Pe] pyrite<br />
can adj lead grey<br />
cariado,-da adj rotten<br />
carmesi oJ;' crimson | nm crimson<br />
cannin adj carmine, crimson | nm crimson |<br />
[Col] limonite<br />
carmineo,-nea adj carmine, crimson<br />
carnacidn nf flesh color<br />
came de vaca nm [Bol, Pe] coarse galena ore<br />
(considered to be relatively poor in silver) |<br />
[Hualgayoc, Pe] red amorphous sphalerite,<br />
phosphorescent on fracture<br />
carneola nf variety <strong>of</strong> chalcedony<br />
carniense nm Karnian<br />
carrancho nm [Col] altered granite carrying<br />
auriferous pyrite and free gold | shaley host<br />
rock in which gold veins are unproductive<br />
carranchoso,-sa adj [Col] rough, scaley, harsh<br />
carrascal nm [Mex] honeycombed quartz,<br />
usually barren<br />
carrera nf run | c. de la marea tidal range<br />
carretada nf cart or wagon load <strong>of</strong> 120 arrobas<br />
carretal nm [Sp] roughly dressed ashlar or<br />
rubble-stone<br />
carro nm car | c. calichero [Ch] nitrate car | c.<br />
carbonero coal car | c. de extraction mine car | c.<br />
salitrero [Ch] nitrate car<br />
carst nm karst<br />
carstenita nf karstenite, anhydrite<br />
carstico,-ca adj karstic<br />
carstificacidn nf karstification<br />
carta nf map | chart | c. planialtimetrica [Arg]<br />
topographic map<br />
cartografia nf cartography | c. aerea aerial<br />
photosurveying<br />
cartografiar vtr to survey, make maps<br />
cartografico,-ca adj cartographic<br />
cartografo nm cartographer<br />
cartoteca »/[Vz] map file<br />
casa nf house | c. del apartado parting<br />
establishment<br />
casar metales vtr [Pe] to mix ores for<br />
amalgamation or smelting
casardnnm large stope<br />
cascada nf waterfall, cascade | [Col] rapids | c.<br />
de diaclasa joint-plane waterfall | c. de glaciar<br />
glacierfall<br />
cascajal or cascajar nm gravel deposit | gravel<br />
pit<br />
cascajear vtr to extract gravel from a gravel pit<br />
| [Col] to clean out cobbles from a sluice<br />
cascajero nm gravel bed | worked-out mine |<br />
[Col] a previously worked placer that still<br />
contains gold<br />
cascajo nm gravel deposit | quarry waste | fine<br />
gravel | [Arg] cobbles | [Ch] coarse, gold-<br />
bearing gravels | [Fr Guiana] deeply<br />
weathered rock | [Mex] waste rock | c. blando<br />
[Calamachi, Mex] talcose schist bedrock to<br />
placers | c. duro [Calamachi, Mex] slate which<br />
forms potholes in bedrock to placers |<br />
[Durango, M£x] iron-bearing quartz | [Pe]<br />
pockets <strong>of</strong> silver ore <strong>of</strong> large size | [El Caratal,<br />
Vz] decomposed schist forming bedrock to<br />
placers | altered diorite in the vicinity <strong>of</strong> veins<br />
cascajoso,-sa adj gravelly<br />
casco nm hard hat<br />
cascote nm rubble stone | waste | muck |<br />
[Arnao, Sp] screened coal 250 to 600 mm in<br />
size<br />
carstico,-ca adj karst<br />
casimba nf well | spring | [Cu] sinkhole<br />
casiterita nf cassiterite<br />
casquete nm cap | c. de gas gas cap<br />
casquijo nm gravel | gravel bar<br />
castana nf abandoned mine<br />
castano,-na adj chestnut brown | nm chestnut<br />
brown<br />
castellano nm an old <strong>Spanish</strong> coin | one-fiftieth<br />
part <strong>of</strong> a marco \ [Mex] furnace used for lead<br />
smelting<br />
castigar vtr [Mex] to dress or smooth stone<br />
castillete nm head frame<br />
castillo nm head frame<br />
castina nf limestone flux<br />
castor nm petalite<br />
cata nf mine under litigation | mine <strong>of</strong> shallow<br />
depth | placer mine | prospecting pit, test pit<br />
| testing, boring, exploration | [Mex]<br />
subsidence<br />
cataclastico,-ca adj cataclastic<br />
catacorte nm [Col] prospecting pit or trench<br />
catadora nf earth auger<br />
catalisis nf catalysis<br />
C-6<br />
catlftico,-ca adj catalytic<br />
catalizador,-dora adj catalytic | nm catalyst<br />
catalizar vtr to catalyze<br />
cataclasis nf cataclastic process<br />
cataclismo nm cataclysm<br />
catar vtr to explore, prospect, sample<br />
catarata nf cataract, waterfall<br />
cataroca nf [Arg] cataclastic rock<br />
catastral adj cadastral<br />
catastro nm <strong>of</strong>ficial land register, cadastre |<br />
inventory or census <strong>of</strong> mining properties<br />
catastr<strong>of</strong>ico,-ca adj catastrophic<br />
catastr<strong>of</strong>ismo nm catastrophism<br />
catazona nf katazone<br />
cateado,-da adj prospected, explored<br />
cateadornm prospecter | sampler |<br />
prospecter's pick<br />
catear vtr to look for, search for | to prospect or<br />
explore a mine, deposit or property | to<br />
sample<br />
cateo nm prospecting, exploration | sampling<br />
catodo nm cathode<br />
cauce nm river channel, river bed | ditch, trench<br />
| way, channel, course | c. inferior lower<br />
course (<strong>of</strong> a river) | c. superior upper course (<strong>of</strong><br />
a river)<br />
caudal nm fortune, wealth | rate, discharge,<br />
volume <strong>of</strong> flow | c. afluente run<strong>of</strong>f, inflow | c.<br />
de avenida flood flow | c. de un no discharge <strong>of</strong><br />
a river | c. solido bed load<br />
caudaloso,-sa adj in full flood<br />
cava nf digging, ditch | pit, excavation | rill |<br />
[Reocin, Sp] cuts made in working calamine<br />
quarries<br />
cavadizo,-za adj easily excavated<br />
cavador nm digger, excavator<br />
cavadura nf digging<br />
cavar vtr to dig, excavate | to dig or sink a well<br />
| vintr to dig<br />
cavazon nm [Sp] digging, excavation<br />
caverna nf cavern, cave, hollow<br />
cavemario,-ria adj cave, cavern<br />
cavernoso,-sa adj cavernous, porous<br />
cavidad nf cavity, vug | c. de unfilon vug or<br />
pocket in a vein<br />
cavitacidn nf cavitation<br />
cayo nm cay, small island | shoal<br />
caz nf flume, canal, race<br />
cazo nm vessel used for heating ore in the hot<br />
amalgamation process for silver ores<br />
cebar vtr [Mex] to smelt ore
cebo nm [Me"x] smelter charge | [Col] late<br />
calcite precipitated by ground waters<br />
infiltrating veins<br />
ceca nf royal mint<br />
cedazo nm small hand sieve used in assaying<br />
celemin nm dry measure equivalent to two<br />
macjuilas and one-twelth <strong>of</strong> afanega<br />
celestina nf celestite<br />
celula nf cell | cellule<br />
celularoJ; celular<br />
cementacidn nf cementation | setting <strong>of</strong> casing<br />
| c. defondo plug back<br />
cementado,-da adj cemented<br />
cementar vtr to cement<br />
cemento nm cement | c. artificial [Sp] Portland<br />
cement | c. puzolanico pozzulan cement<br />
cementoso,-sa adj cement-like<br />
cenagal nm swamp<br />
cenagoso,-sa adj swampy<br />
cendra nf paste <strong>of</strong> bone ash used to make cupels<br />
cendradilla nf [Mex] small reverberatory<br />
refining furnace<br />
ceniciento,-ta adj ashen, ashy color<br />
cenicilla nf [Me"x] black earthy residue obtained<br />
in reducing mercury ores in a gallery furnace<br />
ceniza nf ash | c. de plomo litharge | c. de soda<br />
soda ash | c. volcdnica cinder<br />
cenizo,-za adj ash colored<br />
cenizo-negro nm [Chanarcillo, Ch] transitional<br />
ore zone containing both silver chlorides and<br />
proustite-pyargyrite<br />
cenomaniano,-na adj Cenomanian<br />
cenomanense adj Cenomanian<br />
cenote nm [Yucatan, Mex] sinkhole<br />
cenozoico,-ca adj Cenozoic<br />
cental nm a measure <strong>of</strong> weight<br />
centellador nm scintillator, scintillometer<br />
centelldmetro nm scintillator, scintillometer<br />
centenaja nf [Col] pothole (in a river)<br />
centiarea nm square meter, centare<br />
centigrado,-da adj centigrade<br />
centila nf percentile<br />
centigramo nm centigram<br />
centimetre nm centimeter<br />
centra nm center | height and depth | axis <strong>of</strong> a<br />
stream, etc.<br />
cenido,-da adj [Mex] thinned out, narrowed<br />
ceolita nf zeolite<br />
cera nf wax | c. fosil or mineral natural parrafin,<br />
mineral wax<br />
ceramico,-ca adj ceramic<br />
C-7<br />
cerargirita nf cerargyrite<br />
cerca adv near | c. del sol open pit | nf [Ch]<br />
bedrock<br />
cereo,-reaad/ waxy, wax<br />
cerio nm cerium<br />
cemedor or cernidor nm screen, sieve<br />
cerner or cernir vtr to sift or sieve<br />
cerniduras nfpl screenings<br />
cero nm zero | c. absolute absolute zero<br />
ceroso,-sa adj waxy, ceraceous<br />
cerracho nm [Huancavelica, Pe] smalls (granza)<br />
<strong>of</strong> mercury ore used as the top charge in the<br />
barba furnace<br />
cerrar vtr to close | to enclose | to shut-in (a<br />
well) | c. el trazado to close a survey<br />
cerrarse vpr to thin out, pinch out, as for a vein<br />
cerrazon nm [Col] part <strong>of</strong> a placer containing<br />
boulders<br />
cerril adj rough, uneven, hilly<br />
cerrillada nf range <strong>of</strong> low hills<br />
cerrillo nm hillock<br />
cerro nm hill (smaller than a pico but larger and<br />
steeper than a loma) \ c. glaciarico kame<br />
cerro-mesa nm table mountain<br />
ceruleo,-lea adj cerulean, azure, deep blue<br />
cerusa nf cerussite<br />
cerusita nf cerussite<br />
cesio nm cesium<br />
cesidn nf failure | c. de inter es farm-out<br />
cianita nf kyanite<br />
cianizar vtr to cyanide<br />
cianuracion nf cyanidation, cyaniding<br />
cianuro nm cyanide<br />
cibairo nm any blue or green copper mineral<br />
ciclico/-ca adj cyclic, cyclical<br />
ciclo nm cycle j c. de erosion erosional cycle | c.<br />
glaciar glacial fluctuation<br />
cielo nm sky | ro<strong>of</strong> <strong>of</strong> a working | hanging wall<br />
| a c. abierto open pit<br />
cienaga nf depression where water collects |<br />
swamp, bog | c. carstica karst fen, karst swamp<br />
ciencia nf sceince | ciencias geologicas geological<br />
sciences<br />
cienegal nm [PR] swamp<br />
cieno nm mud | sludge<br />
cientifico,-ca adj scientific | nm/nf scientist<br />
cierre nm closure | shut-in | c. anticlinal<br />
anticlinal closure | c. del trazado [surv] closure<br />
cifra nf figure, number, numeral | quantity,<br />
amount | c. decimal digit<br />
cilindrico,-ca adj cylindrical, cylindric
cilindrio nm cylinder<br />
cima nf summit, top, height, peak, crest<br />
cimborrio nm dome | ro<strong>of</strong>, cieling, hanging wall<br />
cimbrozano nm [Vz] earthquake<br />
cimento nm cement<br />
cim<strong>of</strong>ana nf cymophane, chrysoberyl<br />
cinabarita nf [Sp] cinnabar<br />
cinabrio nm cinnabar | c. hepatico hepatic<br />
cinnaber<br />
cine nm zinc | c. rojo zincite<br />
cincel nm chisel | [Pe] large mass <strong>of</strong> native<br />
silver | c. del indio [Col] stone chisel used by<br />
natives for quarrying stone | c. de unas [Sp]<br />
stone cutter's chisel<br />
cincelador nm stone cutter's chisel<br />
cincelar vtr to chisel<br />
cincelete nm graver, small chisel<br />
cincifero,-ra adj zinc-bearing, zinciferous<br />
cincita nf zincite<br />
cincha nf girth, cinch<br />
cinerita nf ash flow<br />
cinetico,-ca adj kinetic | nf kinetics<br />
cinquero nm zinc worker<br />
cinta nf tape | measuring tape | band or layer<br />
<strong>of</strong> mineral in a vein | [Col] gold-bearing<br />
horizon in a placer | c. de agrimensor measuring<br />
tape | c. de bolsillo pocket tape | c. metrica<br />
measuring tape<br />
cintada nf [surv] tape length, tape measurement<br />
cintarrdn nm [Col] layer <strong>of</strong> pay-dirt in a placer<br />
<strong>of</strong> unusual thickness<br />
cinteado,-da adj banded, ribboned | nf streak,<br />
band<br />
cintero nm [surv] tapeman | c. delatero head<br />
tapeman | c. trasero rear tapeman | c. zaguero<br />
[Arg] rear tapeman<br />
cintildmetro nm scintillator, scintillometer<br />
cinturdn nm belt, zone | c. de cabalgamiento<br />
overthrust belt | c. morenico moraine belt<br />
circa nf [Ch] bed rock<br />
circar vtr [Bol] to mine selectively<br />
circo nm cirque, kar | c. glaciar cirque<br />
circ6nnm zircon<br />
circona nf zirconia<br />
circdico,-ca adj zirconic<br />
circonio nm zirconium<br />
circonita nf zirconite<br />
circulo nm circle | district | c. antartico antarctic<br />
circle | c. artico arctic circle | c. de Mohr Mohr's<br />
circle j c. polar polar circle<br />
circunferencia nf circumference<br />
C-8<br />
cisco nm broken coal | coal dust<br />
citrina nf citrine (a var <strong>of</strong> quartz)<br />
cizalla nf shear<br />
cizallar vtr to shear<br />
cizalleo nm shearing<br />
cizallimiento nm shearing<br />
ckajcheo nm irregular workings resulting from<br />
selective mining<br />
ckallar vtr to high grade a vein or deposit by<br />
mning selectively<br />
ckatata or ckatati nf [Bol] leather bag used to<br />
haul ore<br />
ckojta nf [Bol] miner's carbide lamp<br />
ckollpa nf [Bol] trona<br />
claro nm open space in a lode remaining after<br />
ore has been extracted<br />
clase nm class | grade | c. cristalina crystal<br />
class<br />
clasificable adj classifiable<br />
clasificacidn nf classification | sorting | order |<br />
c. de Dunham Dunham's classification <strong>of</strong><br />
carbonate rocks<br />
clasificado,-da adj classified<br />
clasificador nm filing cabinet | classifier<br />
(milling)<br />
clasificar vtr to class, classify | to sort | to<br />
grade, class | to screen<br />
clastico,-ca adj clastic<br />
claustalita nf clausthalite<br />
clavada nf winze<br />
clavado,-da adj [Col] vertical<br />
clavaque nm pebbles <strong>of</strong> quartz crystal<br />
clavo nm bunch <strong>of</strong> ore | pay streak | rich ore<br />
shoot | chimney (<strong>of</strong> ore) | inclusion <strong>of</strong> igneous<br />
rock within sedimentary rock | [Col] piece <strong>of</strong><br />
gold which cuts a pebble or cobble from one<br />
side to another<br />
cliachita nf bauxite, cliachite<br />
clinclasa nf clinoclase<br />
clinocloro nm clinochlore<br />
clinoeje nm clinoaxis<br />
clinometro nm clinometer<br />
clivaje nm cleavage | c. de crenulacion<br />
crenulation cleavage | c. de disyuncion fracture<br />
cleavage | c. de estratificacion bedding cleavage<br />
| c. deflujo flow cleavage | c. defractura<br />
fracture cleavage | c. de lapis pencil cleavage |<br />
c. de micropliegue crenulation cleavage | c. de<br />
piano axil axial plane cleavage | c. de roca rock<br />
cleavage | c. de transposition slip cleavage | c.<br />
en abanico cleavage fan | c. espaciado spaced
cleavage | c. paralelo bedding cleavage | c.<br />
pizarreno slatey cleavage | c. pizarroso slatey<br />
cleavage | c. verdadero slaty cleavage<br />
clizoglifo nm mud crack<br />
cloantita nf chloanthite<br />
clorato nm chloride<br />
clorhidrato nm hydrochloride<br />
clorhidrico,-ca adj hydrochloric<br />
cldrico adj chloric<br />
clorita nf chlorite<br />
cloritico,-ca adj chlorite, chloride<br />
cloritizacidn nf chloritization<br />
cloritoide nf chlortoid<br />
cloro nm chlorine<br />
clorocalcita n/hydrophilite<br />
cloroespinela n/chlorospinel<br />
cloruro nm chloride | c. de cal chloride <strong>of</strong> lime |<br />
c. de sodio sodium chloride | c. sodico sodium<br />
chloride<br />
coacervatidn nf coacervation<br />
coalescencia nf coalescence, fusion<br />
cobaltico,-ca adj cobaltic<br />
cobaltifero,-ra adj cobalt-bearing, cobaltiferous<br />
cobaltina nf cobaltite<br />
cobalto nm cobalt | cobalt ore | c. arsenical<br />
smaltite | c. brillante cobaltite | c. fragmentado<br />
native arsenic | c. gris cobaltite, smaltite<br />
cobaltoso,-sa adj cobaltous<br />
cobertera nf platform cover<br />
cobertura nf cover, covering<br />
coblenciano,-na adj Coblenzian<br />
colbenciense adj Coblenzian<br />
cobijadura nf alluvium | [Arg] overthrust<br />
cobre nm copper | copper ore | c. abigarrado<br />
bornite | c. amarillo chalcopyrite | c, ampolloso<br />
blister copper | c. anilado covellite | c. azul<br />
azurite | c. bruto en plancha copper ingot | c. de<br />
acarreo drift copper | c. de cementation cement<br />
copper | c. del cdtodo cathode copper | c. en<br />
plancha sheet copper | c. gris (antimonial)<br />
tetrahedrite | c. gris (arsenical) tennantite | c.<br />
gris argenttfero freibergite | c. gris mercurial<br />
schwazite | c. hepdtico a var <strong>of</strong> chalcopyrite | c.<br />
indigo chalcocite | c. morado bornite | c. nativo<br />
native copper | c. negro blister copper |<br />
tenorite | c. piritoso chalcopyrite | c. piritoso<br />
hepdtico bornite | c. porfidico copper porphyry |<br />
c. rojo cuprite | c. roseta copper ingot | c. salino<br />
atacamite | c. siliceo crysocolla | c. sulfurado<br />
vidrioso chalcocite | c. sulfureo chalcocite | c.<br />
verde malachite | c. vidrioso chalcocite | c.<br />
C-9<br />
virgen native copper | c. vitreo torbernite<br />
cobreno,-na adj copper, with copper<br />
cobrizo,-za adj copper-bearing, cupriferous |<br />
copper-colored, coppery | nm [Me"x] low-<br />
grade copper ore<br />
coccidn nf roasting<br />
coceo nm [Me"x] thrust<br />
cocer vtr to roast ore<br />
cocimento nm [Pe] boiling <strong>of</strong> ores | [Ch]<br />
method <strong>of</strong> treating nitrates<br />
cocinera «/[Zacatecas, Mex] rich part <strong>of</strong> a mine<br />
coco nm [Col] gold pan made from a cocanut<br />
shell<br />
cocolita nf coccolite<br />
cocolito nm coccolith<br />
cocha nf [Bol, EC] lake, pond<br />
cochano nm [Vz] nugget<br />
cochino nm [met] pig<br />
cochiso nm [Pe] proustite, pyrargyrite<br />
cochizo nm pyrargyrite | [Bol, Pe] tetrahedrite |<br />
[Pe] stromeyerite | c. falso [Cerro de Pasco, Pe]<br />
bournonite<br />
cochura nf roasting<br />
codal adj one cubit long<br />
cddigo nm code <strong>of</strong> laws | c. de Carolina mining<br />
code for Potosi and the area under the<br />
authority <strong>of</strong> the viceroyalty <strong>of</strong> the Rio de La<br />
Plata (essentially modern Bolivia) established<br />
in 1792 | c. de minas mining laws<br />
codo nm cubit<br />
coeficiente nm coefficient | c. de confianza<br />
confidence level | c. de correlation correlation<br />
coefficient | c. de determination coefficient <strong>of</strong><br />
determination | c. de elasticidad modulus <strong>of</strong><br />
elasticity | c. de permeabilidad coefficient <strong>of</strong><br />
permeability | c. de productividad productivity<br />
index | c. de variation coefficient <strong>of</strong> variation<br />
cogollo nm upper part | c. de la tinta [Col]<br />
upper part <strong>of</strong> the pay zone in a placer | c. del<br />
hilo [Col] upper part <strong>of</strong> a vein | c. de las vetas<br />
outcrop <strong>of</strong> a vein<br />
coherencia nf coherence<br />
cok nm coke | c. de petroleo petroleum coke | c.<br />
de retort a gas coke | c. para altos hornos blast<br />
furnace coke<br />
cola nf tail | [Mex] part <strong>of</strong> a vein that<br />
terminates with depth | nfpl tailings<br />
colada nf flow (<strong>of</strong> lava) | melt | filtering | c. de<br />
lava lava flow<br />
coladero nm winze, ore pass, ore chute<br />
colador nm strainer | c. de lodo shale shaker | c.
vibratario shale shaker, mud screen<br />
coladura nf straining, filtering<br />
colagon rim [Mex] conduit canal<br />
colar vtr to cast metal | [Mex] to sink a shaft<br />
colarse vpr to seep, percolate<br />
colatidud nf colatitude<br />
coleccion nf collection<br />
colector nm collector | c. de gas gas trap<br />
colgado,-da adj suspended, hung | [Bol] said <strong>of</strong><br />
a mine working which encounters an already<br />
worked area<br />
colgante adj hanging, suspended<br />
colgar vtr [Col] to use natural drainage to work<br />
a placer<br />
colicuacion nf smelting<br />
colillas nfpl tailings<br />
colimacion nf collimation<br />
colimadornm collimator<br />
colina nf ridge, hill | hillock | c. de presion<br />
pressure ridge<br />
colindante adj adjacent<br />
colmado,-da adj piled in heaps<br />
colmarse vpr to fill up<br />
colmatacidn nf filling | [ Arg] silting up<br />
colmataje nm filling<br />
colmo nm height, summit<br />
colocar vtr to arrange or place, locate, set<br />
col<strong>of</strong>onita nf cellophane<br />
col<strong>of</strong>ano nf cellophane<br />
col<strong>of</strong>ormo,-ma adj coll<strong>of</strong>orm<br />
coloidal adj colloidal<br />
coloide adj/nm colloid<br />
coloideo,-dea adj colloid, colloidal<br />
colomillo nm [Col] protruding rocks in the<br />
bedrock <strong>of</strong> a river or placer<br />
color nm trace or color <strong>of</strong> gold | rock stained by<br />
mineral<br />
colorante nm coloring material<br />
colorado,-da adj red | n/[Topia, Mex] rusty<br />
orange staining <strong>of</strong> propylitized andesite due to<br />
weathering <strong>of</strong> pyrite | nm red | [Mex] gossan<br />
| [Pe, Ch] oxidized silver ores colored by<br />
copper<br />
coloreado,-da adj colored<br />
colpa nf copperas | [Pe] a silver ore<br />
colqueruna nm Indian who obtained exemption<br />
from the mita by paying a fee to his caquique<br />
colqui nm [Bol, Pe] silver<br />
columna nf pipe or column <strong>of</strong> rock or ore | c. de<br />
brecha breccia pipe | c. de petroleo oil column |<br />
c. de sondeo drill string<br />
C-10<br />
columnar adj columnar<br />
coluvial adj colluvial<br />
coluvion nf colluvium<br />
collado nm saddle, gap, pass | hill<br />
collpa nf [Bol, Pe] nitrate, trona<br />
comarca nf territory, district, region | border,<br />
boundary, limit | study area | c. minera mining<br />
district<br />
comba nf bulge<br />
combar vtr to bend, curve or warp<br />
combersa n/[Arg] valley<br />
combination nf combination, compound |<br />
commingling | permutation<br />
combo nm [Bol] sledge hammer<br />
combustible adj combustible | nm fuel,<br />
combustible | fuel oil | c. liquido liquid fuel<br />
combustion nf combustion | c. in situ in situ<br />
combustion<br />
combustoleo nm fuel oil<br />
comercializacion nf marketing<br />
comerse los pilares vpr [Mex] to rob pillars<br />
comillo nm reverberatory furnace<br />
comision nf [Col] party | c. de estudios [Col]<br />
survey party<br />
comisura nf corner | c. estratigrdfica bedding<br />
plane<br />
compacidad nf [PR, Vz] compaction,<br />
compactedness<br />
compactacion adj compaction, compacting,<br />
consolidating<br />
compacto,-ta adj compact, dense<br />
companfa nf company | La C [Pe] Cerro de<br />
Pasco Corporation<br />
compas nm compass (for drawing) | compass<br />
(for navigation) | c. de division dividers<br />
compensation nf adjustment, compensation | c.<br />
de la brujula compass compensation<br />
compensar vtr to adjust | c. la aguja adjust a<br />
compass needle<br />
competencia nf competence<br />
competente adj competent<br />
complejo nm complex | c. basal basement<br />
complex | c. de base basement complex | c.<br />
fundamental basal complex | c. volcdnico<br />
volcanic complex<br />
componente nm constituent, component<br />
composition nf composition<br />
comportamiento nm behavior | c. geoquimico<br />
geochemical behavior<br />
compresibilidad nf compressibility<br />
compresible adj compressible
compresidn nf compression | c. isotermica<br />
isothermal compression<br />
compresivo,-va adj compresive<br />
compreso,-sa adj compressed<br />
comprimible adj compressible<br />
comprimido,-da adj compressed<br />
comprimir vtr to compress | v,pr to be<br />
compressed<br />
compuesto,-ta adj compound | nm compound<br />
computadornm computer<br />
computadora nf computer<br />
computar vtr to compute, calculate<br />
cdmputo nm computation, calculation<br />
comun adj common, ordinary, average | nm<br />
ore <strong>of</strong> average grade<br />
comunicacidn «/[Bol] drift that connects two<br />
section <strong>of</strong> a mine | intersection <strong>of</strong> a raise or<br />
winze with a gallery<br />
concavidad nf concavity<br />
cdncavo,-va adj concave | nf cavity, hollow<br />
concavoconvexo,-xa adj concavo-convex<br />
concentration nf concentration | c. en seco dry<br />
concentration<br />
concentrado,-da adj concentrated | nm<br />
concentrate<br />
concentrador nm concentrator<br />
concentrar vtr to concentrate<br />
concentricidad nf concentricity<br />
concentrico,-ca adj concentric<br />
concesidn nf concession, grant | c, comunitaria<br />
community lease | c. de tiro shooting lease<br />
concesionar vtr to grant a concession<br />
concesionario nm holder <strong>of</strong> a concession,<br />
licensee, grantee<br />
concoide adj conchoidal<br />
concoideo,-dea adj conchoidal<br />
concordancia nf conformity<br />
concordante adj concordant, conformable<br />
concrecidn nf concretion | c. calcarea calcareous<br />
sinter | c. esferoidal spheroid concretion<br />
concrecionado nm deposit formed by chemical<br />
precipitation<br />
concrecionar vtr to sinter<br />
concrecional adj concretionary<br />
concha nf shell | test (micr<strong>of</strong>ossil)<br />
conchifero adj shell-bearing | nm [Me"x] shell-<br />
bearing limestone<br />
conchilla nf [ Arg] shell<br />
conchudo,-da adj shelly, shaly<br />
cdnchula nf [Arg] test (micr<strong>of</strong>ossil)<br />
condensacidn nf condensation<br />
C-ll<br />
condensado nm condensate | c. retrograde<br />
retrograde condensate<br />
condensar vtr to condense<br />
cdndrita nf chondrite<br />
conduccidn nf conduction | c. de calor thermal<br />
conduction<br />
conductancia nf conductance<br />
conductibilidad nf conductivity<br />
conductible adj conductive<br />
conductividad nf conductivity<br />
conductivo,-va adj conductive<br />
conducto nm vent or pipe <strong>of</strong> a volcano |<br />
channel, lava channel | conduit | c. volcanico<br />
volcanic vent<br />
conexidn adj connection, linkage<br />
confeccidn nf drawing up, making up | c. de<br />
mapas mapping<br />
configuration nf pattern, array, configuration<br />
c. de afloraminetos outcrop pattern | c. de<br />
diaclasas joint pattern | c. dendritica dendritic<br />
pattern | c. en reja trellis pattern | c. lee lee<br />
configuration | c. radial radial pattern | c.<br />
rectangular rectangular pattern | c. Wenner<br />
Wenner array<br />
confitillo nm [Mex] pea gravel, peastone<br />
conflation nf smelting<br />
confluencia nf confluence, concourse, or<br />
meeting <strong>of</strong> two rivers, etc. | junction | c. de<br />
gladares glacial confluence<br />
confluente adj confluent, tributary | nm<br />
confluence, concourse (<strong>of</strong> rivers)<br />
confluir vtr to converge, meet, come together<br />
congelado,-da adj frozen<br />
congelar vtr to freeze, congeal | vpr to freeze,<br />
congeal<br />
congelo nm [Ch] lowest layer <strong>of</strong> caliche<br />
consisting <strong>of</strong> selenite, sand, sulphates and<br />
chlorides<br />
conglomeradico,-ca adj [Arg] conglomeritic,<br />
conglomerate<br />
conglomerado,-da adj conglomerate | nm<br />
conglomerate | c. aurifero gold placer | c. de<br />
boleos boulder conglomerate | c. de chinos<br />
cobble conglomerate | c. defalias fault<br />
conglomerate | c. degranito [Arg] granolithic<br />
conglomerate | c. de penas [Vz] cobble<br />
conglomerate | c. d: penones [Vz] boulder<br />
conglomerate | c. Ui. trituracion crush<br />
conglomerate | c. fundamental basal<br />
conglomerate | c. rojo [Mex] conglomerate<br />
cemented by red, iron-bearing clay
conglomerante nm binding material<br />
conglomerar vtr to conglomerate | vpr to<br />
conglomerate<br />
conglomera'tico,-ca adj conglomeratic<br />
conglutinado,-da adj conglutinated<br />
conglutinarse vpr to coalesce, coagulate, cake<br />
congo nm [Col] pebbles or fragments <strong>of</strong> iron ore<br />
found in placers | iron oxide found in veins |<br />
sphalerite<br />
congosto nm pass | canyon, gorge<br />
congruente adj congruent<br />
congruo,-rua adj congruent<br />
coniaciano,-na adj Coniacian<br />
coniaciense nm Coniacian<br />
conicidad nf taper | conicity<br />
cdnico,-ca adj conical | conic (projection) | nf<br />
conic section<br />
conificacion nf water coning<br />
coniforme adj cone shaped<br />
conileno nm conylene<br />
conjugado,-da adj conjugate<br />
conjuncidn nf conjunction<br />
conjunto nm suite | assemblage | c. de estratos<br />
sedimentary complex<br />
cono nm cone | c. acandilado spatter or drip cone<br />
| c. adventicio adventive cone, parasitic cone |<br />
c. aluvial alluvial fan | c. compuesto compound<br />
cone | c. de agua water coning | c. de cenizas<br />
cinder cone | c. de deyeccion alluvial fan | c. de<br />
erupcion eruption cone | c. de lava lava cone,<br />
shield volcano | c. parasito parasite cone | c.<br />
piroclastico pyroclastic cone<br />
conodonto nm conodont<br />
conoide nm conoid<br />
conquilifero,-ra adj [Sp] containing shells<br />
consecuente adj consequent<br />
consolidacion nf consolidation<br />
consolidado,-da adj consolidated<br />
consolidar vtr to consolidate, compact | sin c.<br />
unconsolidated<br />
consolidarse vpr to settle, become compact<br />
constante nm constant | c. de gravitacion<br />
gravitational constast |<br />
constriccion nf constriction<br />
consumido nm [Mex] mercury lost in the patio<br />
process <strong>of</strong> amalgamation <strong>of</strong> silver ores<br />
contacto nm contact | c. de transition gradational<br />
contact | c. gradual gradational contact | c. neto<br />
sharp contact | c. pronunciado sharp contact | c.<br />
sedimentario sedimentary contact | c. tectonico<br />
tectonic contact<br />
C-12<br />
contador nm counter | c. central center counter<br />
| c. de altura altimeter | c. geiger geiger counter<br />
| c. proporcional proportional counter<br />
contaritfr to count<br />
contempora'neo,-nea adj contemporaneous<br />
contenido nm concentration, grade | content<br />
contextura nf structure and texture | c. <strong>of</strong>itica<br />
ophitic texture<br />
continental adj continental<br />
continente adj containing | nm continent<br />
contingente nm share, quota, allowable | c. de<br />
production provisional temporary allowable<br />
contornar or contornear vtr to sketch or trace<br />
the outline <strong>of</strong> | to skirt, pass around<br />
contorno nm outline, contour | periphery | c.<br />
estructural structural contour<br />
contracanon nm [Mex] gallery driven into the<br />
footwall side <strong>of</strong> a vein<br />
contraccidn nf contraction, shrinking<br />
contracielo nm [Mex] raise, upraise | c. de acceso<br />
manway raise | c. escalonado stope raise | c.<br />
piloto pilot raise | c. ramal branch or cutout<br />
raise<br />
contraconducto nm counterchute<br />
contracorriente nf countercurrent, eddy, reverse<br />
current | a c. upstream<br />
contraerse vpr to contract, shrink<br />
contraflldn nm countervein, counterlode<br />
contraflujo nm countercurrent, eddy<br />
contramina nf a tunnel connection two mines<br />
contrapresidn nf back pressure<br />
contrastar vtr to assay coins, gold, silver etc.<br />
contraste nm assay<br />
contrata nf [Pe] a system <strong>of</strong> debt servitude in<br />
mining in the 19th century which later evolved<br />
into a bonifide system <strong>of</strong> contract labor<br />
contrato nm contract | c. de avio credit for<br />
working a mine | c. de reembolso bottom hole<br />
contract | c. Have en mano turnkey contract<br />
contravena nf countervein<br />
contraveta nf countervein<br />
conveccidn nf convection<br />
convergencia nf convergence | c. en ley<br />
convergence in distribution or law | c. en<br />
probabilidad convergence in probability<br />
convergente adj convergent, converging<br />
convexidad nf convexity<br />
convexo,-xa adj convex<br />
convolucidn nf convolution<br />
coordenada nf coordinate | c. cartesiana<br />
Cartesian coordinate | c. de simetria tinematica
kinematic symmetry cleavage | c. de simetria de<br />
pliegue fold symmetry cleavage | c. estructural<br />
fabric symmetry cleavage | c. tecto-textural de<br />
simetria fabric symmetry cleavage<br />
copal nm copalite, mineral resin | c. de congo<br />
congo copal<br />
copalillo nm [Batopilas, Mex] sphalerite |<br />
[Zacatecas, M£x] cerussite<br />
copaquira nf copper or nickel sulfate,<br />
melanterite<br />
copela nf cupel<br />
copelacidn nf cupellation<br />
copelar vtr to assay by cupellation, cupel<br />
copete nm crest<br />
copey nm [Ec] bitumen<br />
coprogeno,-na adj coprogenic<br />
coprolito nm coprolite<br />
coque nm coke | c. amorfo amorphous coke | c.<br />
de petroleo petroleum coke | c. de retorta gas<br />
coke<br />
coqueria nf coking plant<br />
coquificacidn nf coking<br />
coquificar vtr to coke<br />
coquizacidn nf coking<br />
coquizar vtr to coke<br />
coraliano,-na adj Corallian<br />
coralico,-ca adj [Vz] coral<br />
coraliense adj Corallian<br />
coralifero,-ra adj coraliferous<br />
coraliforme adj coraliform<br />
coraligeno,-na adj coral<br />
coralino,-na adj coral ine, coral-red<br />
cordado,-da adj ropey<br />
cordel nm a measure <strong>of</strong> length | a measure <strong>of</strong><br />
area<br />
cordillera nf mountain range | c. divisoria divide<br />
cordon nm [Arg, Ch] mountain chain | c. de<br />
cerros range <strong>of</strong> hills | c. estratigrafico shoestring<br />
sand<br />
cori nm [Bol, Pe] gold<br />
cori-bronce nm [Potosi, Bol] chalcopyrite<br />
corinddnnm corundum<br />
cornalina nf cornelian chalcedony<br />
cornamusa nf [Pe] earthen retort<br />
cornea na nf hornfels<br />
cornelina nf cornelian chalcedony<br />
cdrneo,-ea adj horny<br />
cornerina nf cornelian chalcedony | onyx<br />
cornubianita nf hornblende<br />
coro-coro nm [Bol] native copper<br />
corona nf rim | c. albitica albitic rim<br />
C-13<br />
coronacidn nf crest<br />
coronamiento nm crest top<br />
corral nm a land measure <strong>of</strong> 5.857 hectares<br />
correcion nf correction | c. de bouguer bouguer<br />
correction | c. estatica static correction<br />
corredero nm [Col] ancient abandoned river<br />
bed<br />
corredura nf flow, overflow<br />
corregir vtr to correct, adjust (instruments)<br />
correlacidn nf correlation | c. de los ranges rank<br />
correlation | c. ilusoria false correlation | c.<br />
lineal linear correlation | c. multiple multiple<br />
correlation | c. partial partial correlation | c.<br />
serial serial correlation<br />
correlograma nm correlogram<br />
correntada nf current (<strong>of</strong> a river, etc.)<br />
corrental nm current (<strong>of</strong> a river, etc.)<br />
correr vtr to run or flow, as for rivers, etc. | to<br />
run a survey | c. una linea [surv] to run a line |<br />
c. niveles [surv] to run levels<br />
correspondido nm ratio <strong>of</strong> mercury consumed<br />
to silver produced in the patio process <strong>of</strong><br />
amalgamation <strong>of</strong> silver ore<br />
corrido,-da adj continuous | lineal, running | nf<br />
run, travel | strike <strong>of</strong> a vein | [surv] a run <strong>of</strong><br />
levels | [Bol] drift, float | [Ch] coutcrop | nf<br />
[Bol] drift which follows the course <strong>of</strong> a vein<br />
corriente adj running, flowing | nf current j<br />
stream, flow | course <strong>of</strong> a river | c. abajo<br />
upstream | c. arriba upstream | c. cataclinal<br />
cataclinal stream | c. de convecion convection<br />
current | c. de densidad density current | c. de<br />
remolino [Arg] eddy current | c. de rompiente rip<br />
current | c. de turbeidad turbidity current | c. de<br />
turbidez turbidity current | c. efluyente effluent<br />
stream | c. fluvial stream | c. freatica subsurface<br />
flow c. literal longshore current | c.<br />
sedimentadora aggrading stream | c. turbia<br />
turbidity current<br />
corrimiento nm landslide, sliding | overthrust |<br />
c. aparente apparent slip | c. horizontal<br />
horizontal thrust<br />
corromperse vpr to decompose<br />
corrosivo,-va adj corrosive<br />
corroyente adj corrosive, abrasive<br />
corrugacidn nf corrugation | c. intraformacional<br />
intraformational corrugation<br />
corrugado,-da adj corrugated<br />
cortada nm cut or working<br />
cortafierro nm cold chisel<br />
cortafrio nm cold chisel
cortahierro nm cold chisel<br />
cortanucleos nmpl core bit, core drill<br />
cortar vtr to cut | c. alturas to trench a vein at<br />
the surface, stoping downwards as far as<br />
practical | c. sogas to abandon a mine<br />
cortarse vpr to be cut <strong>of</strong>f, as for a vein<br />
cortaveta n/[Bol] drift which intersects a vein at<br />
an angle<br />
corte nm cut <strong>of</strong>f | cutting | working face, cut |<br />
section | cut or opening to an ore deposit or<br />
mine | stope | [Col] surface workings <strong>of</strong> a<br />
placer | c. de pozo drill cutting | c. de prestamo<br />
borrow pit | c. de roca thin section | c. geologico<br />
geologic cross-section | c. tranversal cross<br />
section | c. y relleno cut and fill<br />
corteza nf crust | c. helada permanente permafrost<br />
| c. terrestre earth's crust<br />
corundo ntn corundum<br />
corvadura nf curvature<br />
cosedimentacion nf cosedimentation<br />
cosolete nm escutcheon<br />
coseno nm cosine<br />
costa nf coast, shore | c. acantillada steep coast |<br />
c. alta mountain coast | c. de emersion<br />
emergence coast | c. de sumersion submergence<br />
coast | c. play a low coast<br />
costado nm side <strong>of</strong> a pit, tunnel or shaft<br />
costal nm [Mex] ore-sack <strong>of</strong> 150 pound capacity<br />
costalera nf ore-sacks (collectively)<br />
costanero,-ra adj coastal | nf slope<br />
coste nm cost | c. de extraction extraction cost,<br />
lifting cost | c. de taponamiento plug-back cost |<br />
c. intangible intangible cost<br />
costeable adj [Mex] workable at a pr<strong>of</strong>it,<br />
payable<br />
costeno,-na adj coastal<br />
costero,-ra adj coastal, nearshore<br />
costero nm side <strong>of</strong> a mineral deposit<br />
costra nf crust, scale | slag | [Ch] conglomerate<br />
that overlies caliche<br />
costroso,-sa adj scaley<br />
cota nf altitude, elevation | c. de altura elevation<br />
| c. de comparadon datum | c. de nivel elevation<br />
j c. de referenda bench mark, datum<br />
cotacion nf elevation<br />
coto nm boundary marker | c. minero group <strong>of</strong><br />
mines<br />
covacha nf small cave<br />
covadera nf guano deposit<br />
covarianca nf covariance<br />
covelina nf covellite<br />
C-14<br />
coyote nm working area during block caving<br />
cracoiano,-na adj Cracoian<br />
cracoiense adj Cracoian<br />
craquear vtr [ Arg] to crack (petroleum)<br />
craqueo nm [Arg] cracking | c. al vapor steam<br />
cracking | c. catalitico catalytic cracking | c.<br />
termico thermal cracking<br />
crater nm crater <strong>of</strong> a volcano | c. adventicio<br />
adventive crater | c. de explosion explosion<br />
crater | c. de meteorito meteor crater | c.<br />
inundado maar | c. parasito or parasttico<br />
parasitic crater<br />
cratogeno nm craton<br />
crece nm [Ch] flood<br />
crecer vtr to rise, swell (river) | to increase<br />
crecido,-da adj in flood | nf flood<br />
creciente nm flood, rise | c. de la marea flood<br />
tide<br />
crecimiento nm flooding, rising | growth | c.<br />
exponential exponential growth | c. lineal linear<br />
growth | c, logistico logistic growth<br />
crema nf cream (color)<br />
crenulado,-da adj crenulate, crenulated<br />
cresta nf crest | c. de gas gas cap | c. dentada<br />
hogback | c. divisadora divide | c. monoclinal<br />
hogback<br />
cresteria nf hogback, ridge | watershed line<br />
creston nm outcrop | outcrop <strong>of</strong> a vein or<br />
deposit that stands above the ground surface |<br />
crest<br />
creta nf chalk<br />
cretaceo,-cea adj Cretacous<br />
cretacico,-ca adj Cretacous<br />
cretoso,-sa adj chalky<br />
criadero nm ore deposit, vein, seam or shoot |<br />
genesis <strong>of</strong> ore deposits | [Ch] matrix | [Col]<br />
gold found in the heads <strong>of</strong> streams | [Me"x]<br />
chamber deposit | c. bolsada irregular deposit |<br />
c. de contacto contact metasomatic or skarn<br />
deposit | c. de petroleo oil pool | c. detritico<br />
alluvial deposit | c. en arbol deposit that<br />
branches like a tree | c. en capa stratiform<br />
deposit | c. en filon veins <strong>of</strong> considerable extent<br />
| c. en veta vein deposit | c. en manto bedded<br />
vein deposit | c. en masa irregular deposit | c.<br />
en saca irregular, sack-like deposit | c.<br />
engabarrado disseminated deposit | c. irregular<br />
irregular deposit | c. en rinones small, irregular<br />
deposits<br />
criba nf screen, grizzly, riddle | c. hidrdulicafig,<br />
jigging table
cribado,-da adj cribate, cribiform | jigged,<br />
concentrated on a jigging table | nm sieving,<br />
sifting, screening | nm screening | [Sevilla, Sp]<br />
screened coal 30 to 100 mm in size<br />
cribador,-ora adj sieving, sifting, screening | nm<br />
ore screen | siever, sifter, screener<br />
cribadura nm sieving, screening or jigging <strong>of</strong> ore<br />
cribar vtr to screen, sieve, jig or sift<br />
cribdnnm grizzly<br />
criboso,-sa adj cribate, cribiform<br />
crinoide nm crinoid<br />
crioconito nm cryoconite<br />
cridgeno,-na adj cryogene<br />
criptoclastico,-ca adj cryptoclastice<br />
criptocristalino,-na adj cryptocrystalline<br />
criptdgeno,-na adj cryptic<br />
criptomagmatico,-ca adj cryptomagmatic<br />
criptdmera nf cryptomere, aphanitic rock<br />
criptdnnm krypton<br />
criptovolcanicOj-ca adj cryptovolcanic<br />
crisoberilo nm chrysoberyl<br />
crisdcola nf chrysocolla | borax<br />
crisol nm assay or smelting crucible | hearth (<strong>of</strong><br />
a furnace)<br />
crisolada nf charge <strong>of</strong> a crucible<br />
crisdlita nf chrysolite<br />
crisdlito nm chrysolite<br />
crisoprasa nf chrysoprase<br />
crisdtilo nm chrysotile<br />
cristabalita nf cristabolite<br />
cristal nm crystal | c. de roca rock crystal | c.<br />
mineral dissolved salt<br />
cristalillo nm hyaline quartz | crystallized salts<br />
cristalinidad adj crystallinity<br />
cristalino,-na adj crystalline<br />
cristalito nm crystallite<br />
cristalizacidn nf crystallization<br />
cristalizador,-dora adj crystallizing<br />
cristalizante adj crystallizing<br />
cristalizar vtr/intr/pr to crystallize<br />
cristaloblastasis nf crystalloblastesis<br />
cristaloblastico,-ca adj crystalloblastic<br />
cristal<strong>of</strong>isica nf crystal physics<br />
cristalografia nf crystallography<br />
cristalogra>fico,-ca adj crystallographic<br />
cristaloide adj/nm crystalloid<br />
cristaloideo,-dea adj , vstalloidal<br />
cristaldptica nf crystal optics<br />
criterio nm criteria | c. de rechazo rejection<br />
criteria<br />
crocoisa nf crocoite<br />
C-15<br />
crocoisita nf crocoite<br />
cromato nm chromate | c. de hierro chromite<br />
crdmico,-ca adj chromic, chrome-bearing<br />
cromita nf chromite (ore)<br />
cromito nm chromite (chemical)<br />
cromo nm chromium, chrome<br />
cromocre nm chrome ocher<br />
crom<strong>of</strong>errita nf chromite<br />
cromo nm chrome<br />
cronoestratigrafico,-ca adj chronostratigraphic<br />
cronologia nf chronology<br />
cronoldgico,-ca adj chronological<br />
croquis nm sketch | rough draft<br />
cruce nm [Bol] intersection <strong>of</strong> two galleries or<br />
drifts<br />
crucero nm jointing | cleavage | [Bol]<br />
intersection <strong>of</strong> two galleries or drifts | c.<br />
astilloso pencil cleavage | c. basico basal<br />
cleavage | c. de intersection pencil cleavage | c.<br />
de piano axil axial plane cleavage | c. de roca<br />
cleavage, rock cleavage | c, en abanico cleavage<br />
fan | c. espaciado spaced cleavage | c. ondulado<br />
crenulation cleavage | c. pizanoso slaty<br />
cleavage | c. verdadero slaty cleavage<br />
cruciforme adj cruciform<br />
crudo,-da adj crude, untreated | hard (water) |<br />
nm crude oil | c. deequidad equity crude | c.<br />
dulce sweet crude<br />
cruzado,-da adj crossed or cut by another | nf<br />
crosscut<br />
cruzador nm cross vein<br />
crudeza nf hardness (<strong>of</strong> water)<br />
cruz nf intersection <strong>of</strong> veins<br />
cruzamiento nm crosscutting <strong>of</strong> veins<br />
cruzante nm vein that cuts another<br />
cruzar vtr to cross, cut or traverse<br />
cuaderno nm field book, notebook | c. de<br />
nivelacion level book<br />
cuadra nf a measure <strong>of</strong> length <strong>of</strong> one quarter <strong>of</strong><br />
a mile<br />
cuadra do,-da adj square | nm square | c. latino<br />
Latin square | c. media mean square<br />
cuadrangulo nm quadrangle<br />
cuadrante nm quadrant (<strong>of</strong> a circle)<br />
cuadratico,-ca adj quadratic<br />
cuadricula nf grid, cross ruling<br />
cuadriculado,-da adj grid, in squares | nm grid,<br />
cross ruling<br />
cuadricular ufr to grid<br />
cuadrilla nf gang, party, crew | c. de perforation<br />
drilling crew
cuadrivalente adj quadrivalent<br />
cuadro nm table | shaft | c. periodico periodic<br />
table<br />
cuajado nm [Mex] silver-bearing lead ore<br />
cuajar vtr to evaporate brine<br />
cuajarse vpr to coagulate, cake<br />
cuaje nm total evaporation <strong>of</strong> brine<br />
cualitativo,-va adj qualitative<br />
cuantico,-ca adj quantum, quantic<br />
cuantificacidn nf quantification<br />
cuantificar vtr to quantify | to quantize<br />
cuantila nf quantile<br />
cuantitativo,-va adj quantitative<br />
cuanto nm quantum<br />
cuarache nm [Guanajuato, Mex] clay selvage<br />
around a vein<br />
cuarcifero,-ra adj quartz-bearing, quartziferous<br />
cuarcita nf quartzite | c. feldespatica arkosite<br />
cuarcitico,-ca adj quartzitic<br />
cuarta nf fourth | quadrant | a linear measure<br />
<strong>of</strong> one fourth <strong>of</strong> a vara<br />
cuarteadura nf crack, split, fissure<br />
cuartear vtr to break rock with a sledge hammer<br />
| to<br />
quarter | to crack | vpr to crack, split<br />
cuarteo nm crack, fissure | splitting, dividing<br />
into parts | [Me"x] piecework<br />
cuarterdn nm [Me"x] a liquid measure <strong>of</strong> 25 liters<br />
cuarteta nf [Ch] a measure <strong>of</strong> area<br />
cuartila nf quartile<br />
cuartilla nf one fourth <strong>of</strong> an arroba, one-<br />
sixteenth <strong>of</strong> a quintal<br />
cuartillo nm a measure <strong>of</strong> volume <strong>of</strong> one fourth<br />
<strong>of</strong> afanega or real<br />
cuarton nm boulder | [Mex] flagstone<br />
cuarzo nm quartz | c. ahumado smokey quartz |<br />
c. alfa alpha quartz | c. amarillo cairngorm<br />
stone | c. bastardo bull quartz | c. beta beta<br />
quartz | c. cariado rotten quartz | c. citrino<br />
topaz | c. ferruginoso iron stained quartz | c.<br />
hialino hyaline quartz | c. hialino verde sinople |<br />
c. lechoso milky quartz | c. listado ribboned<br />
quartz | c. macho [Col] quartz barren <strong>of</strong> ore | c.<br />
porfidico [Pe] hornstone | c. radiado cross-<br />
course spar | c. rosado rose quartz | c. tabular<br />
laminar quartz<br />
cuarzodiorita nf quartz diorite<br />
cuarzomonzonita nf quartz monzonite<br />
cuarzoso,-sa adj quartzose<br />
cuaternario,-ria adj Quaternary<br />
cuaterno,-na nf quaternary<br />
C-16<br />
cuba nf vat | c. de cianuracton cyanidization vat<br />
cubaje nm volume<br />
cubertura nf cover<br />
cubeta nf [Vz] trough, downfold, syncline, basin<br />
| c. cerrada basin | c. marina ocean basin<br />
cubetada nf bucketfill<br />
cubetadraga nf dragline bucket<br />
cubicacidn nf computation <strong>of</strong> volume<br />
cubicaje nm volume<br />
cubicar vtr to block out (ore) | to compute<br />
volume<br />
cubko,-ca adj cubic<br />
cubierta nf cover, overburden<br />
cubierto nm cover, overburden | c. fluvioglacial<br />
galcial cover | c. moderno recent cover<br />
cubilote nm cupola<br />
cubo nm cube<br />
cubreobjeto nm cover glass, cover slip<br />
cubrir vtr to cover<br />
cucurbita nf retort<br />
cucurucho nm peak, summit, top<br />
cucharadraga nf [Ec] dragline bucket<br />
cuchareo nm baling (<strong>of</strong> a well)<br />
cuchilla nf knife-edged or sharp ridge |<br />
mountain crest | mountain range | outrunner<br />
or branch <strong>of</strong> a sierra \ line <strong>of</strong> hills<br />
cuele nm driving, sinking (workings)<br />
cuelga nf [Ch, Col] slope, grade (<strong>of</strong> a river)<br />
cuenca nf basin | watershed, river drainage<br />
system | valley | trough, graven | c.<br />
alimentadora watershed | c. carbonifera coal<br />
basin | c. cerrada closed basin | c. de<br />
alimentacion watershed | c. de drenaje drainage<br />
basin or area | c. defallas graben | c. de<br />
sedimentacion sedimentation basin j c. fluvial<br />
river basin | c. hidrogrdfica drainage basin | c.<br />
hullera coal basin | c. imbrffera [Arg, Ur]<br />
watershed | c. marginal marginal basin | c.<br />
marina sea basin | c. petrolifera oil pool | c.<br />
recolectora watershed | c. rocosa rock basin | c.<br />
sedimentaria sedimentary basin | c. submarina<br />
submarine basin | c. tributaria watershed<br />
cuenco nm pool, basin<br />
cuerpo nm body or mass <strong>of</strong> rock or mineral |<br />
orebody | c. de agrimensores survey party | c. de<br />
beneficio ore body | c. de brecha hidrotermal<br />
hydrothermal breccia body | c. defilon or de<br />
veta branch <strong>of</strong> a vein | c. del alto hanging wall<br />
branch <strong>of</strong> a vein | c. del bajo footwall branch <strong>of</strong><br />
a vein | c. del enmedio branch <strong>of</strong> a vein between<br />
the footwall and hanging wall | c. intrusivo
intrusive body | c. magmdtico boss, stock | c.<br />
mineralizado ore shoot<br />
cuesco nm core | [M£x] coarse ore<br />
cuesta nf abrupt grade, elevation | rise | hill |<br />
slope | c. abajo downhill, downslope | c. arriba<br />
uphill<br />
cueto nm high crag, rocky peak<br />
cueva nf cave | c. vieja [Minglanilla, Sp] large<br />
chambers resulting from the excavation <strong>of</strong> salt<br />
cuisiano,-na adj Cuisian<br />
cuisense nm Cuisian<br />
culminacion nf culmination<br />
cumbre nm summit, top, ridge, peak, crest<br />
cumbrera nf summit, top, ridge<br />
cumulante nm cumulant<br />
cumulo nm accumulation, pile, heap | irregular<br />
deposit or mass | stockwork<br />
cumuri nm owner <strong>of</strong> llamas or burros employed<br />
to transport ore<br />
cuneta nf small trench<br />
cuniforme adj cuniform, cuneate, wedge-shaped<br />
cuna nf wedge | c. de hielo<br />
cuota nf allowable, quota, share | c.<br />
suplementaria discovery well allowable<br />
cuprico,-ca adj cupric<br />
cuprifero,-ra adj copper-bearing, cupriferous<br />
cuproso,-sa adj cuprous<br />
cupula nf cupola, dome, ro<strong>of</strong> | c. de lava lava<br />
dome<br />
C-17<br />
curi nm [Ec] gold<br />
curiche nm [Bol] lake, pool<br />
curso nm course | stream | c. antecedents<br />
antecendent stream | c. consecuente consequent<br />
stream | c. desplazado <strong>of</strong>fset stream | c.<br />
efluyente effluent stream | c. influyente influent<br />
stream | c. pirata pirate stream | c. ramificado<br />
braided stream | c. sobrepuesto superimposed<br />
stream | c. subsecuente subsequent stream<br />
curva nf curve | c. acampanada bell(-shaped)<br />
curve | c. acumulada cumulative frequency<br />
distribution | c. bimodal bimodal curve | c. de<br />
declinacion decline curve (oil or gas production)<br />
| c. de las frecuencias acumuladas cumulative<br />
frequency distribution | c, de nivel contour line<br />
| c. de vaporization flash curve | c.enj J-curve |<br />
c. en u U-shaped curve | c. familiar family<br />
curve (average <strong>of</strong> decline curves for several<br />
wells) | c. isobata depth contour | c. unimodal<br />
unimodal curve<br />
curvacion nf curvature<br />
curvar vtr to bend, curve<br />
curvatura nf curvature, warp<br />
curvilineo,-nea adj curvilinear<br />
cuspide nf peak, summit | apex<br />
cuspilito nm beach cusp
CH<br />
chabarco nm [Le6n, Sp] pond, lake<br />
chabasia nf chabazite<br />
chabasita nf chabazite<br />
chabisque nm [Aragon, Sp] mud<br />
chacal nm [Pe] graphite<br />
chaco nm [Bol, Par] plain<br />
chacuaco nm [LAm] furnace for reducing Ag<br />
ores<br />
chacurruscar vtr [Pe] to mix different types <strong>of</strong><br />
ore<br />
chadacristal nm chadacryst, xenocryst<br />
chadroniano,-na adj Chadronian<br />
chaemolito nm humic coal<br />
chafalonia nf wrought silver | scrap gold or<br />
silver<br />
chafariz nm pool, pond<br />
chaguite nm [Hon] swamp | pool, pond<br />
chahuar vtr [Bol] to frisk or search a miner for<br />
stolen ore<br />
chalchihuitl nm [Mex] Aztec word used for any<br />
useful green stone, such as jadeite and<br />
turquoise<br />
chalchuite nm blue or green variety <strong>of</strong> turquoise<br />
| [Mex] jade<br />
chalmersita nf cubanite<br />
chalybita nf siderite<br />
challantita w/ferricopiapite<br />
chamarcal nm seasonal swamp<br />
chamba w/[Col] pit, ditch or trench | [Ec] sod,<br />
turf<br />
chambear vtr [Col] to dig a trench, pit or ditch<br />
chameolito nm humic coal<br />
chami nm [Bol] low grade ore<br />
chamorro,-ra adj said <strong>of</strong> a hill with a summit<br />
devoid <strong>of</strong> vegetation<br />
chamositico,-ca adj chamositic<br />
champa w/[Pe] peat<br />
champlamiano,-na adj Champlainian | nm<br />
Champlanian<br />
chamuscar vtr [Pe] roasting <strong>of</strong> ore<br />
chanca nf crushing | [Ch, Pe] sorting <strong>of</strong> ore<br />
chancaca nf [Sayapullo, Pe] oxidized ore |<br />
[Hualgayoc, Pe] mixture <strong>of</strong> oxidized and<br />
unoxidized silver ores<br />
chancado nm crushed stone | ch. sin cribar<br />
crusher-run aggregate<br />
chancadora nf crusher | ch. de cono cone crusher<br />
| ch. de mandibulas jaw crusher | ch. de quijadas<br />
CH-1<br />
jaw crusher | ch. giratoria gyratory crusher<br />
chancal nm glacial moraine<br />
chancar vtr [Ch] to crush (minerals) | to grind<br />
chango nm [Me*x] derrickman, roughneck<br />
chanta nf flagstone | slate<br />
chanto nm [Galicia, Sp] flagstone<br />
chanarcillita nf huntilite | [Ch] Pb-As-Sb<br />
minerals such as atacamite, domeykite,<br />
huantajayite<br />
chapa nf plate, sheet (<strong>of</strong> metal)<br />
chapapote nm [Mex] asphalt, tar, bitumen<br />
chapatal nm swamp | muddy ground<br />
chapopote nm [Me"x] asphalt, tar, bitumen<br />
chapuro nm [Arg,Cu] asphalt, tar<br />
charca nf pool, pond, small lake<br />
charcal nm [Arg,Cu] pond<br />
charco nm pool, pond | water hole | puddle in<br />
a playa | gulf<br />
charmouthiano,-na adj Charmouthian<br />
channouthense adj Charmouthian | nm<br />
Charmouthian<br />
Channoutiense nm Charmouthian<br />
charnela nf hinge (<strong>of</strong> a fold, etc) | bend, bow |<br />
ch. anticlinal anticlinal apex or bend | ch.<br />
sinclinal synclinal bend, trough line<br />
charniano,-na adj Charnian | nm Charnian<br />
charnockitico,-ca adj charnockitic<br />
charque nm [Bol] native metal<br />
charquear vtr to dewater (a mine)<br />
charqueria w/[Ch] native metal in the form <strong>of</strong> a<br />
charqui<br />
charquero nm drainage ditch<br />
chasa «/[Arg] gypsum deposit<br />
chasquear vtr [Bol] to move load <strong>of</strong> ore or waste<br />
from one place to another<br />
chassignito nm chassignite<br />
chatarra nf scrap iron, scrap | slag<br />
chatarrero nm scrap dealer<br />
chathamita nf iron skutterudite<br />
Chatiense nm Chattian<br />
chato,-teadj flat<br />
chat6n nm large precious stone (used only after<br />
it is set)<br />
chatoyante nm/adj chatoyant<br />
chattiano,-na adj Chattian<br />
chattiense adj Chattian | nm Chattian<br />
Chautauquiense nm Chautauquan<br />
chauti nm [Mex] clay<br />
chautoso,-sa adj [Me"x] clayey<br />
Chaziense nm Chazyan<br />
chchamear or ch'amear vtr [Bol] to high grade a
vein, mine selectively<br />
chchipa or ch'ipa nf [Bol] rock difficult to drill<br />
chekao nm barite<br />
Chemungiano nm Chemungian<br />
chengbolita nf moncheite<br />
chertificacidn n/chertification<br />
cherusko-aca'dico,-ca adj fourth order folding<br />
chessylita nf azurite<br />
Chesteriano nm Chesterian<br />
Chesteriense nm Chesterian<br />
chiastolitico,-ca adj chiastolitic<br />
chico nm [Bol] piece <strong>of</strong> unusually high grade<br />
ore, usually sold to mine owner<br />
chicuite nm small bucket used for raising ore<br />
chicharrdn nm [Cu] a type <strong>of</strong> silver currency |<br />
[Col] gold nugget | [Hualgayoc, Pe] wad |<br />
[Cerro de Pasco, Pe] local variety <strong>of</strong> sandstone<br />
chicharrones nmpl tailings<br />
chichicle nm [Mex] amethyst<br />
chichitle nm [M£x] amethyst<br />
Chideruano nm Chideruan<br />
chifle adj still, stagnant<br />
chifldn nm chamber in a mine | flume |<br />
rockslide | rock fall in a mine | inclined<br />
gallery | [Arg, Cu] waterfall | [Bol] ventilation<br />
shaft | [Ch] rapids | [Col] spring, source | ch.<br />
de agua water jet<br />
chile nm [M£x] refractory clay | [Pe] deepest<br />
part <strong>of</strong> a mine | working that folows the dip <strong>of</strong><br />
a vein<br />
chile-loeweita nf humberstonite<br />
chilenita nf bismuth-bearing native silver<br />
chileno nm edge or Chilean mill<br />
chilisalpeter nm Chile salpeter<br />
chilpear vtr [Bol] to sampla a load <strong>of</strong> ore using a<br />
punta<br />
chiltonita nf prehnite<br />
chiluca nf [Mex] hornblende trachyte porphyry<br />
or trachyandesite porphyry used as a building<br />
stone<br />
chillagita nf tungstenian wulfenite<br />
chimaltizatl nm [Mex] talc<br />
chimban/[Ch,Pe] ford<br />
chimbo nm [Hon] smelting furnace<br />
chimborazita nf aragonite<br />
chimenea nf pipe, chimney | shaft | ascending<br />
gallery | ch. central central shaft on an oil<br />
production platform | ch. de ascenso channel <strong>of</strong><br />
ascent | ch. de extraction drawhole | ch.<br />
volcanica volcanic pipe<br />
china nf small stone, cobble or pebble |<br />
CH-2<br />
[Almaden, Sp] low grade mercury ore<br />
chinapo nm [Mex] obsidian<br />
chinarro nm boulder | pebble, cobble<br />
chinata nf [Cu] pebble, cobble<br />
chinazo nm large pebble, cobble, stone<br />
chingana nf underground cave or passage<br />
chingarse la veta vtr loss, displacement or<br />
petering out <strong>of</strong> a vein (not for proper company)<br />
chinidina nf glue used for thin sections<br />
chini-liga n/[Potosi, Bol] variety <strong>of</strong> silver-<br />
bearing galena<br />
chinilla nf small pebble<br />
chinkolobwita nf sklodowskite<br />
chino nm pyrite | chalcopyrite | cobble | [PR]<br />
boulder<br />
chinoita nf libethenite<br />
chiquero nm [Cu] crib, cribwork<br />
chirola n/[Arg, Bol] a silver coin equivalent to<br />
20 centavos<br />
chiscarra nf deeply weathered and decomposed<br />
limestone | [Cartagena] trachyte usefull as a<br />
guide to lead ore<br />
chispa nf very small diamond | [Bol] very fine<br />
grained gold or other ore<br />
chispa-chispeada nf [Batopilas, Mex] native<br />
silver in thin wire or leaf | ore containing one-<br />
third silver<br />
chispeado nm [Yauli, Pe] tetrahedrite<br />
chiva nm [Mex] claw bar<br />
chladnita nf chladnite (mineral)<br />
chladnito nm chladnite (meteorite)<br />
chloanthita n/nickel-skutterudite<br />
choclo de oro nm a mass <strong>of</strong> native gold in<br />
matrix<br />
choco,-ca adj dark red<br />
chocolate adj chocolate brown<br />
chompa n/[Vz] churn drill<br />
chondritico,-ca adj chondritic<br />
chondrito nm chondrite<br />
chondrodita nf chondrodite<br />
chtindrulo,-la adj chondritic<br />
chonolito nm chonolith<br />
cheque nm shock, jolt | ch. sismico seismic shock<br />
chorlo nm schorl or black tourmaline | jetstone<br />
chorreadero nm [M£x] ore chute | loose or<br />
running ground<br />
chorredn nm [Cu] small waterfall<br />
chorrera nf [Bol] part <strong>of</strong> a mine subject to<br />
flooding | [Mex] abandoned stope | ore shoot<br />
chorro nm jet | spring, source | ch. de agua a<br />
presion jet <strong>of</strong> pressurized water | ch. padron
[Ch] fault master fault<br />
chorroborro nm alluvium | diluvium<br />
chortal nm small lake or pool fed by a spring<br />
choy nm [Me"x] variety <strong>of</strong> s<strong>of</strong>t shale<br />
chozola nf river bend<br />
christensenita nf tridymite<br />
christophita nf marmatite, iron sphalerite<br />
chua n/[Bol] flat rounded plate used in<br />
collecting ore samples<br />
chuca n/[Ch] friable layer <strong>of</strong> sand and gypsum<br />
overlying costra and caliche<br />
chuco nm [Ch] upper part <strong>of</strong> a caliche deposit<br />
consisting mainly <strong>of</strong> sodium sulfate and<br />
CH-3<br />
sodium chloride<br />
chulano nm a hole drilled upwards<br />
chumba nf [Bol] sphalerite | any mineral that<br />
looks similar to sphalerite<br />
chumbe nm [Bol, Pe] sphalerite | any mineral<br />
that looks similar to sphalerite<br />
chumpi nm magnetite | [Bol] platinum<br />
chungita nm shungite (var graphite)<br />
chupdn nm glory hole<br />
churumbella nf [Col] altered felsite wall rock<br />
chuzo nm [Ch] crowbar
D<br />
dacitico,-ca nf dacitic<br />
danense adj Danian<br />
danesadj Danian<br />
daniano,-na adj Danian<br />
daniense adj Danian<br />
darcy nm darcy<br />
data nf date<br />
datacidn nf dating, age determination<br />
datar vtr to date, put a date on | vintr to date<br />
dato nm fact, datum, record, piece <strong>of</strong><br />
information | ntnpl data, facts, information<br />
debil adj weak<br />
debilidad nf weakness<br />
decaedro nm decahedron<br />
decano nm decane<br />
decantacidn nf decantation | d. selectiva<br />
selective decantation<br />
decapitacidn nf stream capture<br />
decila nf decile<br />
declinacidn nf declination | d. de la aguja or<br />
magnetica deviation from magnetic north<br />
declive nm inclination, slope, incline, declivity,<br />
dip, pitch | en d. sloping, on a slope<br />
declividad nf slope<br />
dedo nm twelth part <strong>of</strong> a palmo, twenty-eigth<br />
part <strong>of</strong> a vara<br />
defecto nm defect | d. de estructura crystal defect<br />
| d. de masa mass defect<br />
deflacidn nf deflation<br />
deflexion nf deflection | d. de la aguja magnetic<br />
deviation<br />
deformacidn nf deformation | strain<br />
deformar vtr to deform | to strain<br />
degradacidn nf degradation, erosion<br />
degradar vtr to degrade<br />
dejar respaldo vtr [Pe] to leave ore in the wall-<br />
rock <strong>of</strong> a mine<br />
deleznable adj brittle, friable, crumbly<br />
deleznamiento nm slakings<br />
deleznar vtr to crumble<br />
delineado,-da adj blocked-out (ore)<br />
delinear vtr to block out (ore)<br />
delta nm delta | d. continental inland delta | d.<br />
glaciarico kame delta | d. marine marine delta<br />
deltaico,-ca adj deltaic<br />
demantoide adj demantoid, uralian emerald<br />
demarcacidn nf demarcation<br />
demarcador,-dora nf demarcating, <strong>of</strong><br />
D-l<br />
demarcation<br />
demarcar vtr to demarcate, delimit, mark out<br />
demasias nfpl [Bol] land falling outside <strong>of</strong><br />
existing mining claims<br />
dendriforme adj dendroid<br />
dendrita nf dendrite<br />
dendritico,-ca adj dendritic<br />
dendioideadj dendroid<br />
dendroideo,-dea adj dendroid<br />
densidad nf density | d. API API gravity | d. de<br />
probabilidad probability density | d. natural<br />
natural (rock) density | d. relativa relative<br />
density, specific gravity<br />
densimetro nm densimeter<br />
dentado,-da adj jagged, serrated, toothed |<br />
dentate<br />
dentellado,-da adj jagged, serrated, toothed |<br />
dentate<br />
denticulado,-da adj toothed<br />
denudacidn nf erosion, denudation<br />
denudar vtr to erode, denude<br />
denuncia nf petition for a mining claim<br />
denunciar vtr to obtain legal possession to a<br />
mining claim<br />
deplecidn nf depletion<br />
deposicidn nf deposition<br />
depositor ufr to deposit | vpr to settle<br />
depdsito nm deposit, sediment | deposition |<br />
reservoir, tank | d. aluvial alluvial deposit | d.<br />
de contacto contact metamorphic deposit | d. de<br />
minerales mineral deposit | d. de metal ore<br />
deposit | d. estratoligase stratiform deposit | d.<br />
glaciar glacial deposit | d. mural mural deposit<br />
| d. par deslizamiento slump | d. vetiforme<br />
vetiform deposit<br />
depositicidn nf deposition<br />
depresidn nf depression, hollow | gap, pass | d.<br />
literal longshore trough<br />
depuracidn nf purification (<strong>of</strong> water)<br />
depurar vtr to purify<br />
derecho,-cha adj straight | nm grant,<br />
concession | d. de captura rule <strong>of</strong> capture | d. de<br />
mina mineral rights<br />
derechos nmpl tax on ore | d. de mineraje royalty<br />
| d. de senoraje duty formerly paid to the king<br />
<strong>of</strong> Spain on coining gold or silver<br />
deriva nf drift | d. de (los) continentes continental<br />
drift<br />
derivar vtr to calculate | vintr to incline, drift,<br />
trend<br />
derivacidn nf <strong>of</strong>fset
derramamiento nm run<strong>of</strong>f<br />
derramarse vpr to overflow, run-<strong>of</strong>f<br />
derrame nm declivity, slope, incline | sill |<br />
overflow, run<strong>of</strong>f<br />
derretido,-da adj melted, molten<br />
derretimiento nm melting, thawing<br />
derretir vtr to melt, thaw, melt down | vpr to<br />
melt, become molten, thaw<br />
derribar vtr to break ground<br />
derribo nm breaking ground<br />
derrocado,-da adj caved<br />
derrubiar vtr to erode, undermine, wash away<br />
derrubio nm alluvium | erosion, undermining,<br />
washing away | d. estriado striated pebbles | d.<br />
glacial glacial drift<br />
derrumbadero nm precipice, cliff<br />
derrumbamiento nm caving, collapse <strong>of</strong><br />
workings | landslide | slumping | d. de tierra<br />
landslide<br />
derrumbarse vpr to cave in, fall in, collapse<br />
derrumbe nm caving, collapse <strong>of</strong> workings |<br />
landslide | d. de montana rockfall<br />
derrumbo nm precipice | [Col] landslide<br />
desagregacion nf desaggregation, disintegration<br />
desagregado,-da adj disintegrated<br />
desaguadero nm drain, outlet<br />
desaguador nm drain, canal, outlet<br />
desaguamdo nm drainage, draining | drain,<br />
outlet<br />
desaguar vtr to drain, empty, run <strong>of</strong>f | v intr to<br />
flow, drain into | vpr to drain<br />
desagiie nm drainage, draining | drain, outlet<br />
desahucio nm [Bol] anullment <strong>of</strong> a mining claim<br />
for failure to pay taxes<br />
desalacion nf desalinization<br />
desalar vtr to desalinate<br />
desalinizacion nf desalinization<br />
desalinizar vtr to desalinate<br />
desamontar vtr to unpile<br />
desamparar vtr to abandon a mine or working<br />
desamparo nm abandonment <strong>of</strong> a mine or<br />
working<br />
desaparacion del mineral nf picnhing out<br />
desarenar vtr [Col] to wash away sand in a<br />
placer working<br />
desarollar v tr develop | to unroll, unfold (a<br />
map) | vpr to develop, be developed | to<br />
unroll, unfold (a map)<br />
desarollo nm development | expansion (<strong>of</strong> a<br />
mathematical expression) | unrolling (<strong>of</strong> a<br />
map)<br />
D-2<br />
desazogadera nf retort used to volatilize and<br />
recover mercury from amalgam<br />
desazogar vtr to volatalize and recover mercury<br />
desbarrancadero nm precipice<br />
desbocado,-da adj overflowing (river)<br />
desbordamiento nm overflow, overflowing<br />
desbordar vintr/pr/tr to overflow, flood<br />
desborde nm overflowing<br />
descalaminado nm removal <strong>of</strong> calamine<br />
descalaminar vtr to remove calamine from<br />
descalcificacion nf decalcification<br />
descalcificar vtr to decalcify | vpr to become<br />
decalcified<br />
descarbonatar vtr to decarbonate<br />
descarburacion nf decarbonization,<br />
decarbonizing<br />
descarburante adj decarbonizing, decarburizing<br />
| nm decarbonization, decarbonizing<br />
decarburar vtr to decarbonate, decarburize<br />
descargar vtr to discharge | vintr to flow | d. en<br />
to flow into<br />
descendencia nf descendence<br />
descendente adj downslope<br />
descendiente adj descending | descendent,<br />
descendant<br />
descenso nm subsidence<br />
descoagulante adj liquefying<br />
descoagular vtr to liquify, dissolve<br />
descogollar vtr [Col] to work the cogollo or<br />
upper part <strong>of</strong> a vein<br />
descolorante adj bleaching<br />
descolorar vtr to bleach | vpr to be bleached<br />
descolorido,-da adj bleached | nm bleaching<br />
descolorimiento nm bleaching<br />
descolorir vtr to bleach | vpr to be bleached<br />
descomponer vtr/pr to decompose | to resolve<br />
(a force) | to split up (a fraction) | to break<br />
down<br />
descomposicidn nf decomposition | resolution<br />
(<strong>of</strong> a force) | factoring<br />
descompresion nf decompression<br />
descomprimir vtr to decompress<br />
descompuesto,-ta adj decomposed<br />
desconcharse vpr to spall, exfoliate<br />
describir vtr to trace | to describe<br />
descripcidn nf tracing | description<br />
descuajar vtr/pr to liquify, dissolve<br />
descubierto,-ta adj exposed<br />
descubridor,-ra adj discovered<br />
descubrimiento nm discovery | d. en suspension<br />
suspended discovery
descubrir vtr to discover<br />
desdoblar vtr to unfold (a map)<br />
desecacion nf dessication, drying | draining (<strong>of</strong><br />
a marsh)<br />
desecado,-da adj dried, dessicated | nm drying,<br />
dessication<br />
desecador,-dora adj drying, dessicating<br />
desecamiento nm dessication, drying | draining<br />
(<strong>of</strong> a marsh)<br />
desecante adj drying, dessicating<br />
desecar vtr/pr to dry up, dessicate | to drain<br />
desecativo,-va adj drying, dessicating<br />
desecho nm waste rock | very low grade ore |<br />
[surv] <strong>of</strong>fset<br />
desembocadura nf river mouth, outlet<br />
desembocar vintr to flow, run<br />
desencielar vtr [Col] to extract ore that remains<br />
between two adits<br />
desenc<strong>of</strong>rado nm removal <strong>of</strong> timbering from a<br />
mine<br />
desenc<strong>of</strong>rar vtr to remove timbering from a<br />
mine<br />
desescombrar vtr to muck<br />
desescombro nm mucking<br />
desfiladero nm gorge, narrow pass, defile<br />
desgarramiento nm tear, disjunction | [Vz]<br />
shattering, breaking up<br />
desgarre nm rift<br />
desgasificacion nf degassing<br />
desgastar vtr to abrade, erode, wear away | to<br />
corrode<br />
desgaste nm abrasion, erosion, wearing away |<br />
corrosion<br />
deshelarse vpr to melt, thaw (ice in a river)<br />
deshiele nm thaw<br />
deshielo nm thawing, melting | ablation<br />
desierto nm desert | d. de arena sand desert | d.<br />
de piedra rock desert d.frio cold desert | d.<br />
salino salt desert<br />
desigual adj uneven<br />
desigualidad nf inequality<br />
desilificacion nf desilification<br />
desilificar vtr desilicify<br />
desimanacion or desirnantacion nf<br />
demagnetization<br />
desimanar or desimantar vtr to demagnetize<br />
desintegracion nf desintegration, decay | d.<br />
espontanea spontaneous fission | d. radioactiva<br />
radioactive or atomic decay<br />
deslava nm erosion | alluvium<br />
deslavable adj erodible<br />
D-3<br />
deslavar vtr to erode<br />
desleir vtr to dissolve | to dilute | vpr to<br />
dissolve | to be diluted<br />
desleidura nf dissolving | dilution<br />
desleimiento nm dissolving | dilution<br />
deslindador nm land surveyor<br />
deslindamiento nm delimitation, demarcation,<br />
marking <strong>of</strong> boundaries<br />
deslindar vtr to mark the boundaries <strong>of</strong>,<br />
delimit, demarcate, survey<br />
deslinde nm demarcation<br />
desliz nf landslide<br />
deslizamiento nm landslide, slide | slip | d. de<br />
faldeo landslide | d. de terreno landslide | d.<br />
laminar afin affine laminar slip | d. lento slow<br />
slide | d. total net slip<br />
deslizarse vpr to run, flow | to slip, slide, glide<br />
desmagnetizacidn nf demagnetization<br />
desmagnetizar vtr to demagnetize<br />
desmenuzable adj friable | unstable<br />
desmineralizacion nf demineralize<br />
desmineralizar vtr to demineralize<br />
desmontar vtr to strip away overburden<br />
desmonte nm overburden | waste rock |<br />
levelled ground | rubble, excavated soil |<br />
excavation j desmontes de cantera [Ch] quarry<br />
refuse<br />
desmoronamiento nm erosion <strong>of</strong> river banks,<br />
etc. | landslide<br />
desmuestre nm coring, core sampling<br />
desnitrar vtr todenitrate<br />
desnitrificacidn nf denitrification<br />
desnitrificar vtr to denitrify<br />
desnivel nm uneveness <strong>of</strong> ground | slope,<br />
gradient | difference in height<br />
desnivelado,-da adj sloping<br />
despajar vtr [Mex] to concentrate ores<br />
despaje nm [Mex] mill tailings<br />
despegue nm detachment, decollement<br />
despenadero,-ra adj steep, precipitous | nm<br />
steep face, precipice, cliff<br />
desperdicio nm waste | spoil<br />
despilado,-da adj robbed <strong>of</strong> pillars<br />
despilar vtr to rob pillars<br />
despilanamiento nm robbing <strong>of</strong> pillars<br />
despinta «/[Ch] silver ore assaying less than 50<br />
diezmilesimos in grade | [Arg] poorest grade<br />
ores, rich in pyrite<br />
desplazado,-da adj displaced<br />
desplazamiento nm displacement | slip | d.<br />
aparente apparent displacement or separation |
d. porfase miscible miscible drive<br />
desplazar vtr to displace<br />
despliegue nm deployment | d. en cruz cross<br />
spread<br />
desplome nm collapse | d. de montana rockfall<br />
despojo nm [Bol] debris | [Col] extraction, as<br />
from a mine<br />
desprender de vtr to separate from<br />
desprendimiento nm landslide<br />
desprovisito,-ta adj devoid<br />
despueble adj abandonment (mines) | nm<br />
abandonment <strong>of</strong> a mine<br />
despuntador nm pick, pickaxe (miner's)<br />
desquebrajado,-da adj cracked, split<br />
desquebrajar vtr to crack, split<br />
destaje or destajo nm [Bol] contract work,<br />
tut work | [Pe] open cut<br />
destilacion nf distillation | d. al vacio vacuum<br />
distillation<br />
destilado nm distillate<br />
desvenar vtr to extract ore from a vein or mine<br />
desviacion nf deviation, departure, deflection |<br />
d. del pozo side tracking | d, media mean<br />
deviation<br />
desviarse vpr to deviate, deflect, depart from |<br />
to branch <strong>of</strong>f<br />
desvio nm wandering (<strong>of</strong> a river) | vein which<br />
meets another, follows it for a short distance<br />
and then resumes its normal course<br />
desviometro nm driftmeter<br />
desvitrificacidn nf devitrification<br />
desvitrificar vtr to devitrify<br />
desvolcanarse vpr [Col] to be covered by a lahar<br />
or mudslide | to collapse | to be destroyed<br />
deszafrar vtr to carry away waste from a mine<br />
desviacion nf deflection<br />
detector nm detector | d. de aqua divining rod |<br />
d. de gas gas explorer<br />
deteriorizacion nf deteriorization<br />
deterioro nm deteriorization<br />
detritico,-ca adj detritic<br />
detrito nm detritus | d. aluvial alluvium<br />
deuterico,-ca adj deuteric<br />
deuterio nm deuterium<br />
devoniano,-na adj Devonian<br />
devonico,-ca adj Devonian<br />
dextroso,-sa adj dextral<br />
deyeccion nf ejection <strong>of</strong> volcanic material |<br />
ejecta | debris<br />
diabasa nf diabase<br />
diabasico,-ca adj diabasic<br />
D-4<br />
diaclasa nf joint | d. de buzamiento dip joint | d.<br />
de cizalla shear joint | d. de contraction joint <strong>of</strong><br />
retreat | d. decortante shear joint | d. de<br />
direction strike joint | d. de estratification<br />
bedding joint | d. de inclination dip joint | d. de<br />
rumbo strike joint | d. de tension tension joint |<br />
d. de traction tension joint | d. diagonal oblique<br />
joint | d. oblicula oblique joint<br />
diaclasado,-da adj jointed, jointy<br />
diaclasado nm jointing | d. angular angular<br />
jointing<br />
diaclasimiento nm jointing<br />
diafanidad nf transparency<br />
diaftoresis nm diaftoresis<br />
diagenesis nf diagenesis | induration<br />
diagrafia nf logging | d. de amplitud amplitude<br />
log | d. de densidad density log<br />
diagrama nm diagram | d. de barras bar diagram<br />
| d. defases phase diagram | d. de pozo well log<br />
| d. de proximidad proximity log | d. de sectores<br />
pie diagram<br />
dialaga nf diagolite<br />
diamagnetico,-ca adj diamagnetic<br />
diamantado,-da adj diamond-like, diamond<br />
diamante nm diamond | d. brillante brilliant<br />
diamond | d. bruto rough diamond | d. en bruto<br />
rough diamond | d. falso fake diamond | d.<br />
negro bort | d. rebolludo round rough diamond<br />
| d. rosa rose diamond | d. tabla table diamond<br />
| d. tallado cut diamond<br />
diamantifero,-ra adj diamond-bearing,<br />
diamond-yield ing, diamantiferous<br />
diamantino,-na adj diamond, diamond-like |<br />
nm [Guanajuato, Mex] veinstone formed <strong>of</strong><br />
hornfels and crystalline feldspar<br />
diamantista nm diamond cutter | diamond<br />
merchant<br />
diapiro nm diapir | d. salino salt dome<br />
diario nm logbook | d. de sondeo drilling journal<br />
or record<br />
diaspora nf diaspore<br />
diaspora nm diaspore<br />
diasquistica nf dischistic, differentiated<br />
diasquisto nm dischistic rock, differentiated<br />
dike rock<br />
diastr<strong>of</strong>ismo nm diastrophism<br />
diastroma nf diastrophism<br />
diatom£ceo,-cea adj diatamaceous<br />
diatomea nf diatom<br />
diatrema nf diatreme | maar | d. de explosion<br />
diatreme
dicroita nf dichroite<br />
dicroismo nm dichroism<br />
dicroita nf cordierite<br />
diedro,-ra adj dihedral | nm dihedron<br />
dientes de perro nmpl scalenohedral calcite<br />
diestro,-ra adj dextral<br />
diezmilesimo nm [Ch] 0.0001 grams <strong>of</strong> metal in<br />
10 grams <strong>of</strong> ore<br />
diferencia nf difference | d. de latitud norte<br />
northing | d. de latitud sur southing | d. en<br />
longitud meridian distance | d. en nivel fall,<br />
difference in level | d. media mean difference<br />
diferenciacidn nf differentiation | d. magmdtica<br />
magmatic differentiation<br />
diferencial adj differential<br />
difluencia nf diffluence<br />
difraccidn nf diffraction<br />
difractar vtr to diffract<br />
difractivo,-va adj diffractive<br />
difractdmetro nm diffractometer<br />
difrangente adj diffractive<br />
difundido,-da adj diffuse<br />
difusidnn/ diffusion | scattering<br />
digestidn nf assimilation<br />
digitacidn nf fingering<br />
digitado,-da adj digitate, digitated<br />
digito nm digit<br />
dilatacidn nf dilation<br />
dilatado,-da adj dilated<br />
dilatarufr to dilate<br />
dilucidn nf dilution<br />
diluido,-da adj dilute<br />
diluir vtr to dilute<br />
diluvio nm flood, deluge<br />
diluvidnnm diluvium<br />
dimanar vintr to flow, run<br />
dinamico,-ca adj dynamic | nf dynamics<br />
dinamometamorfismo nm dynamic<br />
metamorphism<br />
dinamitacidn nf well shooting<br />
dineral nm weight <strong>of</strong> gold <strong>of</strong> 24 quilates or 96<br />
granos \ weight <strong>of</strong> silver <strong>of</strong> 12 dineros or 298<br />
granos<br />
dinero nm twelth part <strong>of</strong> a dineral<br />
dinosaurio nm dinosaur<br />
diodo nm diode<br />
dionisia nf bloodstone (par <strong>of</strong> jasper) |<br />
specular! te<br />
didpsida nf diopside<br />
didpsido nm diopside<br />
dioptasa nf dioptase<br />
D-5<br />
diorita nf diorite | d. compacta aphanite | d.<br />
esquistosa greenstone<br />
dioritico,-ca adj dioritic<br />
didxido nm dioxide | d. de silicic silicon dioxide,<br />
quartz<br />
dipiramide nm bipyramid<br />
dipolo nm dipole<br />
dique nm dike | d. anular ring dike<br />
direccidn nf strike | trend | d. local local strike<br />
| d. media average strike j d. principal principal<br />
strike<br />
dirigirse vpr to strike or trend<br />
disco nm disc<br />
discoidal adj disc-shaped<br />
disconformidad nf disconformity<br />
discontinuidad nf discontinuity<br />
discontmuo,-nua adj discontinuous<br />
discordancia nf unconformity j d. angular<br />
angular unconformity | d. de erosion erosional<br />
unconformity | d. de plegamiento j d. paralela<br />
disconformity<br />
discordante adj discordant<br />
disfrutar vtr to work, expolit or pr<strong>of</strong>it from a<br />
mine, vein, etc.<br />
disfrute nm working or exploitation <strong>of</strong> a mine,<br />
vein, etc.<br />
disgregacidn nf disintegration | breaking up<br />
disgregante adj disintegrating<br />
disgregar vtr to disintegrate<br />
disimetria nf disymmetry<br />
dislocacidn nf dislocation, throw or a fault |<br />
fault | d. ascendente upthrow | d. circular fault<br />
pit | d. descendente downthrow | d. longitudinal<br />
strike-slip fault | d. periferica circular fault j d.<br />
rumbeante strike-slip fault | d. transversal cross<br />
fault | d. vertical vertical fault<br />
dislocado,-da adj displaced, faulted, disrupted<br />
disclocar vtr to displace, fault<br />
disminuacidn nf decrease<br />
disminuir vtr to decrease<br />
disolubilidad nf solubility<br />
disolubleod/ soluble<br />
disolucidn nf solution<br />
disolvente nm solvent<br />
disolvertrfr todisolve<br />
disperarse vpr to die out (as for a vein)<br />
dispersion nf dispersion | d. de la capa irregular<br />
surface on a bed<br />
disponerse en vpr to be found, occur<br />
disposicidn nf arrangment | bedding | d.<br />
alternante alternation <strong>of</strong> beds | d. concordance
conformable bedding | d. discordante<br />
unconformity<br />
dispositive nm layout | d. de tiro shot pattern |<br />
d. simetrico split spread<br />
distancia nf distance | d. horizontal de<br />
afloramientos normal horizontal separation<br />
distena nf disthene<br />
distension nf distension, extension<br />
distribucidn nf distribution | d. cesurada<br />
censored distribution | d. compuesta mixture<br />
distribution | d. conditional conditional<br />
distribution | d. defrecuencia frequency<br />
distribution | d. de la muestra sample<br />
distribution | d. ligada conditional distribution<br />
| d. marginal marginal distribution | d.<br />
observada observed distribution | d. simetrica<br />
symmetric distribution | d. truncada truncated<br />
distribution<br />
distrito nm district | d. minero mining district<br />
disuelto,-ta adj dissolved<br />
disyuncidn nf fracture | jointing | d. de rocas<br />
jointing | d. prismatica columnar jointing | d.<br />
tabular tabular jointing<br />
divergencia nf divergence<br />
divergente adj divergent | nm divergent<br />
division nf joint<br />
divisoria nf divide | d. de vertientes watershed<br />
divorcio de las aguas nm divide, ridge<br />
ddcil adj free-milling, easily treated<br />
dodecaedro nm dodecahedron<br />
dodecaetileno nm dodecatylene<br />
dodecano nm dodecane<br />
dolina nf doline<br />
dolomia nf dolostone<br />
dolomitico,-ca adj dolomitic<br />
dolomitizar vtr to dolomitize<br />
domeriano,-na adj Domerian<br />
Domeriense nm Domerian<br />
dominio nm domain | d. minero mining area<br />
D-6<br />
domo nm dome | d. de sal salt dome | d. salino<br />
salt dome or plug | d. volcanico volcanic dome<br />
dorado,-da adj golden | nm [Michoacan, Me"x]<br />
chalcopyrite-bearing copper ore<br />
dorsal oceanica nf mid-oceanic ridge<br />
dosificacidn nf titration<br />
dosis nf proportion (chemicals)<br />
downtoniano,-na adj Downtonian<br />
downtoniense adj Downtonian<br />
draga nf dredge, dredger, dredging machine<br />
dragado nm dredging<br />
dragador,-dora adj dredging | nm dredger,<br />
dredge<br />
dragaje nm dredging<br />
dragalina nf [Sp] dragline<br />
dragalinea n/[Mex] dragline<br />
dragar vtr to dredge<br />
drenaje nm drainage | d. efectivo net drainage |<br />
d. par expansion depletion drive drainage | d.<br />
por expansion degas gas cap drive | d. por<br />
expansion de gas libre gas cap drive j d. por<br />
gravedad gravity drainage<br />
drusa nf druse | drusy cavity or vug | en d.<br />
drusy<br />
diictil adj ductile<br />
ductilidad nf ductility<br />
duna nf dune | d. continental \ d. costera coastal<br />
dune | d. de playa coastal dune | d. descendente<br />
falling dune | d.falciformebarchandune \ d.<br />
longitudinal longitudinal dune | d.parabolica<br />
parabolic dune | d. seifseif dune | d. d.<br />
transversal transverse dune trepadora climbing<br />
dune<br />
dureza nf hardness | d. delagua water hardness<br />
duro,-ra adj hard<br />
duro nm [Asientos, M£x] hard copper ores with<br />
quartz gangue
eclimometro nm clinometer<br />
econometro nm econometer<br />
ecosonda nf echo sounder<br />
ecuacidn nf equation<br />
ecuador nm equator | e. magnetico aclinic line |<br />
e. terrestre earth's equator<br />
ecuatorial adj ecuatorial<br />
echado,-da adj inclined | nm [Mex] dip,<br />
inclination<br />
edad nf age | e. de hielo ice age | e. glacial ice age<br />
edafologia nf pedology<br />
efecto nm effect | e. de perforation borehole effect<br />
eficacia nf efficiency | e. de barrido sweep<br />
efficiency<br />
eflorescencia nf efflorescence | [Pe] outcrop<br />
efluente nm effluent outflow<br />
efusidn nf eruption, extrusion<br />
efusivo,-va adj extrusive<br />
egirina nf aegirite, aegirine<br />
egirita nf aegirite<br />
eifeliano,-na adj Eifelian<br />
eifeliense adj Eifelian<br />
einstenio nm einsteinium<br />
eje nm axis | e. anticlinal anticlinal axis | e.<br />
cinemdtico de simetria kinematic symmetry | e.<br />
cristalogrdfico crystallographic axis | e. de<br />
plegamiento fold axis | e. de simetria axis <strong>of</strong><br />
symmetry | e. de simetria del pliegue fold<br />
symmetry axis | e. de simetria estructural fabric<br />
symmetry axis | e. de simetria para plegamiento<br />
fold symmetry axis | e. principal de deformacion<br />
principal strain axis | e. sismico seismic axis | e.<br />
tecto-textural de simetria fabric symmetry axis<br />
elasticidad nf elasticity<br />
elastico,-ca adj elastic<br />
elaterometro nm elaterometer<br />
electro nm amber | electrum<br />
electrode nm electrode<br />
electrolito nm electrolyte<br />
electrolizacion nf electrolysis<br />
electromagnetico,-ca adj electromagnetic<br />
electroquimico,-ca adj electrochemical<br />
elemento nm element | e. mineral \ e. trazo trace<br />
element<br />
eleolita nf nepheline<br />
elevacidn nf elevation, height | rise in the<br />
ground, hill<br />
elipsoidal adj ellipsoidal<br />
E-l<br />
elipsoide nm ellipsoid | e. biaxial biaxial<br />
ellipsoid | e. de referenda reference ellipsoid | e.<br />
optico optical ellipsoid | e. uniaxial uniaxial<br />
ellipsoid<br />
eliptico,-ca adj elliptical, elliptic<br />
eluvacion nf eluviation<br />
eluvion nf eluvium, talus<br />
embacarse la veta vpr to lose a vein<br />
embalse nm pondage<br />
emanacidn nf exhalation, emanation<br />
embije or embijete nm [Me"x] thin coating <strong>of</strong><br />
mineral on a joint<br />
embocadura nf entrance<br />
embudiforme adj funnel-shaped<br />
embudo nm funnel | doline | e. de ablacion<br />
ablation funnel | e. de explosion maar<br />
emerger umfr to project, jut out | to emerge<br />
emisidn nf emission<br />
emorrascamiento nm [Mex] depletion <strong>of</strong> ore<br />
emborrascarse vpr [Mex] to lose sight <strong>of</strong> ore<br />
embozado nm [Mex] blind rich ore<br />
embudo nm sink hole<br />
emisor nm transmitter, emitter | e. de<br />
ultrasonidos pinger<br />
emjambre de diques adj dike swarm<br />
empalmar vtr to join, as for veins, etc.<br />
empanizado,-da adj [Cochas, Pe] altered,<br />
decomposed<br />
empinado,-da adj steep<br />
emplazamiento nm emplacement<br />
emplazar ufr toemplace<br />
empobrecido,-da adj impoverished, depleted<br />
empobrecimiento nm depletion <strong>of</strong> ore |<br />
impoverishment<br />
empresa nf company, firm, enterprise<br />
empuje nm pressure | drive | e. hidrostatico<br />
water drive | e. horizontal horizontal pressure |<br />
e. tangencial tangential pressure | e. vertical<br />
vertical pressure<br />
emscheriano,-na adj Emscherian<br />
emscheriense nm Emscherian<br />
emsiano,-na adj Emsian<br />
emsiense nm Emsian<br />
enantimorfo,-fa adj enantimorphous<br />
enarenamiento nf sanding<br />
enarenar vtr to mix ore with sand | to cover<br />
with sand<br />
encajetado nm [Hualgayoc, Pe] oxidized silver<br />
ore<br />
encanada nf [Bol] canyon<br />
encapado,-da adj cloaked, coated, encased |
lind, concealed<br />
encape nm [Bol] overburden<br />
encenagamiento nm [Arg] mud deposit<br />
encentrar vtr to open up a vein along strike or in<br />
the direction <strong>of</strong> dip<br />
enclave nm inclusion<br />
encontrar vtr to meet, as for veins, etc.<br />
encorvado,-da adj crooked<br />
encorvamiento nm warping<br />
encrespadura nf ripplemark<br />
encuentro nm meeting <strong>of</strong> two veins<br />
endicamiento nm impounding<br />
enlace nm bond, tie | e. atomico atomic bond<br />
endentado,-da adj serrate<br />
endliquita nf endlichite<br />
enddgeno,-na adj endogenous<br />
energia nf energy | e. nuclear nuclear energy<br />
enganchado,-da adj [Pe] contracted to pay <strong>of</strong>f a<br />
debt<br />
enganchador nm [Pe] mine worker serving<br />
under debt peonage<br />
enganchadora nf [Pe] mine labor contractor<br />
enganche nm [Pe] debt servitude, generally to<br />
pay <strong>of</strong>f debts owed to the company store<br />
enigmatita nf aenigmite<br />
enlazimiento nm connection, link<br />
enriquecerse vpr to come upon higher grade<br />
ores<br />
enriquecimiento nm enrichment <strong>of</strong> veins | e.<br />
secundario secondary enrichment<br />
enrollado,-da adj convoluted<br />
ensanchado,-da adj widening, flaring<br />
ensanche nm widening | e. de unfilon swelling<br />
or bunching <strong>of</strong> a lode<br />
ensanchamiento nm widening<br />
ensayarufr to assay<br />
ensaye nm assay<br />
ensayo nm assay | test | e. de capas drill stem<br />
test<br />
ensenada nf bay<br />
ensiforme adj bladed<br />
entalpia nf enthalpy<br />
enterrado,-da adj buried<br />
entierro nm burial<br />
entrada nf entrance to a mine | recess<br />
entrar vintr to empty | e. tajo or tonga [Col] to<br />
drain a mine or placer working<br />
entrecrecer vtr to intergrow<br />
entrecrecido,-da adj intergrown<br />
entrecrecimiento nm intergrowth<br />
entrelaminado,-da adj interbedded<br />
E-2<br />
entremontana nf intermountain, median mass,<br />
intermontane area, intermediate massif<br />
entreverado,-da adj stockwork<br />
entropia nf entropy<br />
eocambriano,-na adj Eocambrian<br />
eocambrico,-ca adj Eocambrian<br />
eoceno,-na adj Eocene | nm Eocene<br />
eocenico,-ca adj Eocene<br />
edlico,-ca adj aeolian<br />
ednnm aeon<br />
eopaleozoico nm Eopaleozoic<br />
eozoico,-ca adj Proterozoic<br />
epicentre nm epicenter<br />
epidoto nm epidote | e. calizo zoisite | e.<br />
manganesico piedmontite<br />
epigene"tico,-ca adj epigenetic<br />
epipelagico,-ca adj epipelagic<br />
epiroca nf epirock<br />
epirogenesis nf epeirogenesis, epeirogeny<br />
epirogenetico,-ca adj epeirogenetic<br />
epirogenia nf epeirogenesis, epeirogeny<br />
epirogenico,-ca adj epeirogenic<br />
epizona nf epizone | de la e. epizonal<br />
epoca nf epoch | efria ice age | e geologica era |<br />
e metalogenica metallogenic epoch<br />
equilibrio nm equilibrium | material balance<br />
equipo nm shift | rig | gear | e. perforador<br />
drilling rig<br />
equivalente adj equivalent<br />
era nf era | salt water pond formed by<br />
evaporation | e. geologica era<br />
ergio nm erg<br />
erguimiento nm uplift<br />
eritrina nf erythrite<br />
erodado,-da adj eroded<br />
erosion nf erosion | e. fluvial fluvial erosion | e.<br />
glacial glacial erosion | e. mecanico mechanical<br />
erosion | e. pr<strong>of</strong>unda deep erosion | e. regresiva<br />
retrogressive erosion | e. cjuimico chemical<br />
erosion | e. vertical downcutting<br />
erosionado,-da adj eroded<br />
erratico,-ca adj erratic<br />
error nm error | e. cuadrdtico media mean square<br />
error | e. de medida measurement error | e. de<br />
muestro sampling error | e. de observacion<br />
observational error | e. media mean error<br />
erubescita nf bornite<br />
erupcidn adj eruption | blow-out (<strong>of</strong> a well) | e.<br />
defiance flank eruption<br />
eruptivo,-va adj eruptive, volcanic<br />
esarcha nf [Pe] native sulphur
escala nf scale | e. de dureza hardness scale<br />
(Moh's) | e. Rankine Rankine scale<br />
escalenoedrico,-ca adj scalenohedral<br />
escalenoedro nm scalenohedron<br />
escalon nm step | stope | e. de circo cirque | e.<br />
de conflnencia confluence step | e. de banco<br />
underhand stope | e. de cielo overhand stope |<br />
e. de denudacion erosion scarp | e, de folia fault<br />
scarp | e. defractura fault scarp | e. marginal<br />
marginal step<br />
escalonamiento nm stepping<br />
escama nf slice, flake | scale<br />
escamiforme adj scale-like<br />
escamosiones nfpl incrustations, scale<br />
escamoso,-sa adj scaley, platy<br />
escapolita nf scapolite<br />
escarapela nf rosette<br />
escarcha n/[Pe] native silver<br />
escarpa nf escarpment, scarp | e. defractura fault<br />
scarp | e. de piamonte scarplet<br />
escarpado/-da adj steep<br />
escarpar vtr to scarp, slope<br />
escarpe nm scarp, escarpment | e. defalla fault<br />
scarp<br />
escarpita nf scarplet<br />
escaso,-sa adj rare, infrequent<br />
escintilometro nm scintillometer | e. aereo<br />
airborne scintillometer<br />
escoger a mano vtr to hand sort (ores)<br />
escollera nf cliff<br />
escollo nm shoal, reef<br />
escombrera nf debris | waste heap<br />
escombro nm waste rock | detritus, talus |<br />
overburden on placers | e. glacial drift<br />
escopetar vtr to work a gold mine<br />
escoria nf scoria | slag | dross<br />
escorial nm slag heap | deposit <strong>of</strong> volcanic ash<br />
| lava bed<br />
escota nf miner's pick<br />
escudo nm shield | e. continental continental<br />
shield<br />
escurrente adj exhalant, effluent<br />
escurrimiento nm draining, run<strong>of</strong>f | e. superficial<br />
surface run<strong>of</strong>f<br />
escurrirse vpr to run <strong>of</strong>f<br />
esfalerita nf sphalerite<br />
esfena nf sphene<br />
esfeno nm sphene<br />
esfenolita nf sphenolith<br />
esfera nf sphere<br />
esferal adj spherical<br />
E-3<br />
esferico,-ca adj spherical<br />
esferoidal adj spheroidal<br />
esferoide nm spheroid | e. intraformacional<br />
convolutional ball | e. lacustre lake ball<br />
esferolitico,-ca adj spherulitic<br />
esferolito nm spherulite<br />
esferosiderita n/spherosiderite<br />
esfuerzo nm stress<br />
eslamosa nf nagyagite<br />
esmaltina nf smaltite<br />
esmaltita nf smaltite<br />
esmanil nm sphalerite<br />
esmeralda nf emerald | e. oriental corundum<br />
esmeril nm emory | [Mex] arsenopyrite<br />
esmitsonita nf smithsonite<br />
espacio nm spacing<br />
espalto nm spalt, fluorspar flux<br />
esparnaciano,-na adj Sparnacian<br />
esparnaciense nm Sparnacian<br />
espatico,-ca adj spathic<br />
espato nm spar | e. adamantine corundum | e.<br />
amargo magnesite | e. azul blue fluorspar |<br />
lazulite | e. bruno brown dolomite, magnesite |<br />
e. calcareo calcite | e. calcico calcite | e. calizo<br />
calcite | e. de cat calcite | e. de cine smithsonite<br />
| e. (de)fluor fluorspar, fluorite | e. dehierro<br />
siderite | e. de Islandia Iceland spar | e. de itrio<br />
xenotime | e. de manganese rhodochrosite,<br />
rhodonite or dialogite | e. en tablas wollastonite<br />
| e. ferrifero siderite | e. fetido bituminous<br />
fluorite | e. fluor fluorspar, blue fluorspar | e.<br />
lustroso satin spar (calcite or gypsum) | e.<br />
manganoso dialogite | e. pardo brown dolomite,<br />
magnesite | e. pesado barite | e. romboidal<br />
dolomite | e. satinado fibrous gypsum<br />
especie nm species | e. tipo type species<br />
especimen nm specimen<br />
especularo^/ specular<br />
espejado nm [Pe] galena<br />
espejo nm [Col] slickenside | e. defalla<br />
slickenside | e. defriccion slickenside<br />
espejuelo nm mica | transparent talc | [Ch]<br />
fine-grained, transparent selenite or gypsum |<br />
[Ch] calcite | [Real de Monte, M£x] galena and<br />
sphalerite crystals generally poor in silver |<br />
[Pe] lead carbonate | [Hualgayoc, Pe] barite<br />
espeleologia nf speleology<br />
esperanza nf expectation | e. matemdtica<br />
mathematical expectation<br />
esperkisa nf spear pyrite (var <strong>of</strong> marcasite)<br />
espesartina nf spessartite
espesartita nf spessartite<br />
espeso^sa adj thick, dense<br />
espesor nm thickness <strong>of</strong> a bed, vein, etc.<br />
espesura nf density, thickness<br />
espiga nf bay bar<br />
espilita nf spilite<br />
espinela nf spinel | e. cincifera gahnite,<br />
franklinite | e. cromifera picotite<br />
espinelido nm spinellide<br />
espodito nm whitish volcanic ash<br />
espodumena nf spodumene<br />
esponja nf stockwork <strong>of</strong> veins | [Mex] spongy<br />
bullion<br />
espuma nf meerschaum | gossan | magnesia |<br />
e. de mar sepiolite | e. de nitro surface crust <strong>of</strong><br />
nitrate on salt flats<br />
esqueletal adj skeletal<br />
esquema nf sketch | classification | e. Lahee<br />
Lahee classification <strong>of</strong> exploratory wells<br />
esquisto nm shale, schist, slate | e. anfibolitico<br />
amphibole schist | e. arcilloso underclay | e.<br />
bituminoso oil shale | e. carbonoso coal shale | e.<br />
cloritico chlorite schist, greenschist | e.<br />
combustible oil shale | e. cornea hornslate | e. de<br />
anftbolita amphibolite schist | e. de barro<br />
mudstone | e. divisorio dividing slate | e.<br />
micaceo micaceous schist | e. noduloso spotted<br />
slate or schist | e. paralelo bedding schistosity |<br />
e. petrolifero oil shale | e. talcoso talc schist<br />
esquistoideo nm schistoid<br />
esquistosidad nf schistosity | cleavage, induced<br />
cleavage, rock cleavage | e. astillosa pencil<br />
cleavage | e. de crenulacion crenulation cleavage<br />
| e. en abanico cleavage fan | e. en pizzarin<br />
pencil cleavage | e. espaciada spaced cleavage |<br />
e. trasversal slaty cleavage<br />
esquistoso,-sa adj schistose<br />
essonita nf hessonite<br />
estabilidad nf stability | e. quimica chemical<br />
stability<br />
estabilizacidn nf stabilization<br />
estableod; stable<br />
estacidn nf season | station | e. gravimetrica<br />
gravity station<br />
estacional adj seasonal<br />
estadal nm land measure <strong>of</strong> 4 varas | [Mex]<br />
level rod | e. cuadrado 16 square varas<br />
estadia nf stadia<br />
estadio nm furlong<br />
estadistica nf statistics | e. de orden order<br />
statistics<br />
E-4<br />
estadistico,-ca adj statistical | nm statistic<br />
estado nm state | stage<br />
estaffordiano,-na adj Staffordian<br />
estaffordiense adj Staffordian<br />
estalactita nf stalactite<br />
estalagmita nf stalagmite<br />
estampiano,-na adj Stampian<br />
estampiense adj Stampian<br />
estanekita nf stannekite<br />
estanina nf stannite<br />
estannita nf stannite<br />
estanoso^sa adj stannous<br />
estanque nm pool | e. de petroleo oil pool | e.<br />
para colas tailings pond<br />
estanifero,-ra adj stanniferous, tin-bearing<br />
estanina nf stannite<br />
estano nm tin | tin ore | tin concentrate | e.<br />
acarreo placer tin | e. de aluvion placer tin | e. de<br />
arroyo placer tin | e. de cornuallis cassiterite | e.<br />
de escoria tin slag | e. de madera wood tin | e. de<br />
placeres placer tin | e. en grano placer tin | e.<br />
lenoso wood tin | e. piritoso stannite | e. vidrioso<br />
cassiterite | e. xiloide wood tin<br />
estanoso,-sa adj stannous<br />
estaurolita nf staurolite<br />
esteatita nf steatite, soapstone<br />
estefaniano,-na adj Stephanian<br />
estefaniense nm Stephanian<br />
estefanita nf stephanite<br />
estelidn nf olivine dolerite, toadstone<br />
esteldn nm olivine dolerite, toadstone<br />
estereograma nf stereogram<br />
estepa nf steppe<br />
esteril adj barren, sterile, devoid <strong>of</strong><br />
mineralization | dry (wells) | nm waste,<br />
waste rock<br />
esteril nm gangue | unmineralized or barren<br />
rock<br />
estero nm estuary, inlet | [Arg, Mex] swamp |<br />
[Bol, Ch] creek | [Vz] pond<br />
estiaje nm low water mark<br />
estibina nf stibnite<br />
estibnita nf stibnite<br />
estilbita nf stilbite<br />
estilo nm style | e. tectonico tectonic style<br />
estilotito nm stylolite<br />
estimacidn nf estimation | e. por el metodo de<br />
Bayes Bayesian estimation | e. por el metodo de<br />
los minimos cuadrados lest-squares estimation |<br />
e. por el metodo de momentos moment estimation<br />
| e. por intervalo interval estimation | e. por la
maxima versimilitud maximum-likelihood<br />
estimation | e. par regresion estimation by<br />
regression | e. puntual point estimation<br />
estimador nm estimator | e. convergente<br />
consistent estimator | e. exhaustive complete<br />
estimator | e. sesgado biased estimator | e. sin<br />
sesgo unbiased estimator<br />
estimarse vpr to be taken to be, appear to be,<br />
suggest to be<br />
estiramiento nm stretching<br />
estoraque nm [Guerrero, Mex] sphalerite<br />
estrangulacidn nf narrowing <strong>of</strong> a vein, etc.<br />
estrangulamiento nm narrowing <strong>of</strong> a vein, etc.<br />
estratificacidn nf stratification, bedding |<br />
bedding cleavage | e. cruzada cross-bedding |<br />
e. diagonal cross-bedding | e. entrecruzada cross-<br />
bedding | e. gradada graded bedding | e.<br />
graduada graded bedding | e. gradual graded<br />
bedding | e. inclinada inclined bedding | e.<br />
indinada inversa backset bedding | e.<br />
intraplegada convolute bedding, slip bedding |<br />
e. lenticular lenticular bedding | e. masiva<br />
massive bedding | e. nodular nodular bedding<br />
| e. ondulada wavy bedding | e. ondulitica<br />
ripple bedding | e. rizada crinkle bedding,<br />
ripple bedding | e. seleccionada sorted bedding<br />
estratificado,-da adj stratified<br />
estratificar vtr to deposit, stratify<br />
estratiforme nm stratiform<br />
estratigrafia nf stratigraphy<br />
estratigrafo,-fa nm/f stratigrapher<br />
estratigrafico,-ca adj stratigraphic<br />
estrato nm stratum, bed, layer | e. anual varve |<br />
e. concordante concordant bed | e. conforme<br />
conformal bed | e. de cobertura cap rock | e.<br />
cruzante crossbed | e. disconcordante discord ant<br />
bed | e. guijoso gravel layer | e. indice key bed<br />
estrechamiento nm thinning or pinching <strong>of</strong> a<br />
vein, etc.<br />
estrecharse vpr to thin or become narrow<br />
estrechez nf narrowness | gap, pass<br />
estrecho nm straight<br />
estrechdnnm narrowness<br />
estrechura nf narrowness | narrows, gap, pass<br />
estrellarse la veto vpr [Pe] to thin out, peter out<br />
(vein), especially by passing into disseminated<br />
ore<br />
estria nf striation, stria | groove | e. glaciar<br />
glacial stria<br />
estriacidn nf striation<br />
estriado,-da adj striate<br />
E-5<br />
estriadura nf striation<br />
estriar vtr to sort ore<br />
estribacidn nf spur | njpl foothills<br />
estringa nf [Me"x] stringer<br />
estroncianito nf strontianite<br />
estroncio nm stroncium<br />
estructura nf structure | texture | e.<br />
almohadillada ball-and-pillow structure, mullion<br />
structure | e. amigdaloide amygdaloidal<br />
structure | e. bandeada banded structure | e.<br />
cataclastica cataclastic structure | e.<br />
concreccionada concretionary structure | e. de<br />
despegue decollement structure | e. de munon<br />
mullion structure | e. en lajas flaggy structure |<br />
e. fluidal fluid structure | e. microscopica<br />
microtexture | e. mom'/i/brmeboudinage | e.<br />
ojival ogive | e. sedimentaria sedimentary<br />
structure<br />
estructural adj structural<br />
estruniano,-na adj Strunian<br />
estruniense nm Strunian<br />
estuarino,-na adj estuarine<br />
estuario nm estuary, inlet<br />
estudio nm study | e. catastral cadastral survey<br />
etopa nf stage<br />
etiqueto nf tag (for samples)<br />
eugeosinclinal nm eugeosyncline<br />
euhedral adj euhedral<br />
euhedrico,-ca adj euhedral<br />
eupelagico,-ca adj eupelagic<br />
europio nm europium<br />
eustosia nf eustasy<br />
eustotismo nm eustasy<br />
eutectico,-ca adj eutectic<br />
euxenico,-ca adj euxenic<br />
evaporacidn nf evaporation<br />
evaporito nf evaporite<br />
evento nm event<br />
evolucidn nf evolution<br />
exactitud nf accuracy<br />
exagonal adj hexagonal<br />
exaracidn nf exaration<br />
excavacidn nf excavation | e. a cielo abierto open<br />
pit | e. de ensayo test pit | | e. en escalones stope<br />
| e. en zanja trench<br />
excavadorod/ burrowing<br />
exento nm free <strong>of</strong> | e. de acidos acid free<br />
exfoliacidn nf exfoliation | cleavage<br />
exfoliar vtr to exfoliate<br />
exhalation nf exhalation<br />
exhalante adj exhalant
exhondacion nf overdeepening<br />
exhumacion nf exhumation<br />
exitela nf valentinite<br />
exdgeno,-na adj exogenous<br />
exotermico,-ca adj exothermic<br />
exploracidn nf exploration<br />
explorar vtr to explore<br />
exploratorio,-ria adj exploratory<br />
explosion nf explosion, blast | e. de abanico fan<br />
shooting<br />
explotacidn nf mining, exploitation | e. en<br />
descubierto open-pit mining, stripping, strip<br />
mining | e. par metodo minero oil mining<br />
explotar vtr to mine, exploit, work<br />
extension nf extension | area, areal extent |<br />
range, extent | e. en acres acreage | e.<br />
estratigrafica stratigraphic range<br />
exterior nm exterior, outside | aboveground,<br />
surface at a mine<br />
extinguido,-da adj extinct<br />
extinguir vintr to become extinct<br />
extinto,-ta adj extinct<br />
extraccidn nf extraction, mining, production,<br />
recovery | sampling | e. con reposition<br />
sampling with replacement | e. par gas gas lift<br />
| e. sin reposition sampling without<br />
replacement | e. vigorizada enhanced recovery<br />
extracto nm extract<br />
extraible adj minable<br />
extrusivo,-va adj extrusive<br />
exudacidn nf exudation<br />
eyeccidnwf ejecta, accidental | e. juvenil }uvei\i\<br />
ejecta<br />
ezteri nm bloodstone, a variety <strong>of</strong> jasper<br />
E-6
fabrica nf fabric (petrographic) | /. siderurgica<br />
iron works<br />
faceta nf facet (<strong>of</strong> a gem)<br />
facies nfpl facies | /. abisal abyssal facies | /.<br />
continental continental facies | / costera coastal<br />
facies | /. de agua dulce freshwater facies | /.<br />
eolica aeolian facies | /. fluvial fluvial facies | /.<br />
glacial glacial facies | /. lacustre lacustrine facies<br />
| /. litoral coastal facies | /. marina marine<br />
facies | /. metamorficas metamorphic facies | /.<br />
neritica neritic facies | /. sedimentarias<br />
sedimentary fades | def. facieologic,<br />
facieological<br />
facoidal adj lenticular<br />
facolito nm phacolith, phacolite<br />
factor nm factor | /. comun common factor | /. de<br />
contraction shrinkage factor | /. de escurrimiento<br />
[Col] run<strong>of</strong>f coefficient | /. deformacion<br />
formattion resistivity factor | /. de grupo group<br />
factor | /. especifico specific factor | /.<br />
volumetrico formation volume factor<br />
faena nf work, labor, task | workings | [Bol, Pe]<br />
unpaid work (a type <strong>of</strong> corvee) | [Ch] work<br />
gang, shift | /. mineral mine workings<br />
fahlbanda nf fahlband<br />
faja nf belt or zone <strong>of</strong> rock, mineralization, etc |<br />
band <strong>of</strong> mineral in a vein | /. petrolifera<br />
petroleum zone<br />
fajado nm prop (<strong>of</strong> mine timber)<br />
fajeado,-da adj banded<br />
falda nf slope, hillside | wing or leg <strong>of</strong> a saddle<br />
falsificar el mineral vtr to salt (a mine)<br />
falso,-sa adj false | /. matriz pseudo-matrix | /.<br />
pena false bedrock | /. salto false throw <strong>of</strong> a<br />
vein or fault<br />
falla nf fault | /. activa active fault | /. acostada<br />
thrust fault | /. antitetica antithetic fault | / casi<br />
vertical de dezplazamiento horizontal wrench fault<br />
| /. conforme conformable fault (to bedding) | /.<br />
corriente strike fault | /. de altoempuje upthrust<br />
fault | /. de ascenso normal fault | /. de<br />
buzamiento dip fault | /. de cabalgamiento<br />
overlap fault | /. de descenso reverse fault | /. de<br />
desgarre strike-slip fault | /. de despegue<br />
detachment fault | /. de desplazamiento<br />
horizontal strike-slip fault | /. de desplazamiento<br />
oblfcuo oblique-slip fault | /. de direccion strike<br />
fault | /. diagonal inclined fault | /. escalonada<br />
F-l<br />
step fault | /. de estratificacion bedding-plane<br />
fault | /. de gravedad gravity fault, normal fault<br />
| /. directa normal fault | /. distributativa step<br />
fault | /. en escalera step fault | /. escalonada step<br />
fault | /. escarpada [Mex] fualt scarp | /. falsa<br />
pseudo-fault, horse | /. girada pivotal fault | /.<br />
gravitacional normal fault | /. horizontal strike-<br />
slip fault | /. inversa reverse fault | /. inversa de<br />
bajo angulo thrust fault, overthrust ] /. lateral<br />
lateral fault | /. marginal boundary fault | /.<br />
normal normal fault | /. por empuje thrust fault<br />
| / por empuje inferior underthrust fault | /.<br />
ramificada branching fault | /. rumbodeslizante<br />
strike-slip fault | /. segun buzamiento dip-slip<br />
fault | /. simple normal fualt | /. sinsedimentaria<br />
synsedimentary fault | /. transformante<br />
transform fault | /. transcurrente strike slip fault<br />
| /. transversal dip fault<br />
fallado,-da adj faulted<br />
fallamiento nm faulting<br />
fallar vtr to fault<br />
fallo nm [Bol] fault deformation<br />
fameniano,-na adj Famennian<br />
fameniense adj Famennian<br />
fanega nf [Me"x] unit <strong>of</strong> land measure (about 8.8<br />
acres)<br />
fanegada nf unit <strong>of</strong> area equivalent to 576<br />
estadales (about 6600 square meters) | unit <strong>of</strong><br />
capacity <strong>of</strong> 225 to 555 liters<br />
faneritico,-ca adj phaneritic<br />
fanerocristalino,-na adj phaneritic<br />
faneromero,-ra adj phaneritic<br />
fangal nm marsh, bog<br />
fanglomerado nm fanglomerate<br />
fango nm mud, slime, ooze | sludge | [Isla<br />
Carman, Me"x] layer <strong>of</strong> black, earthy salt | /. de<br />
glaciar glacial mud or silt | /. mineral slimes<br />
fangoso,-sa adj muddy, silty<br />
faralldn nm [Bol] wallrock | [Pe] outcrop <strong>of</strong> a<br />
vein<br />
farmacolita nf pharmacolite<br />
farmacosiderita nf pharmacosiderite<br />
fase nm phase<br />
faunico,-ca adj faunal<br />
faunistico,-ca adj faunal<br />
faz nf front, face | /. de laboreo working face<br />
feldespatico,-ca adj feldspathic<br />
feldespato nm feldspar | /. calizo anorthite | /.<br />
de cat anorthite | /. nacarado or opalado adularia<br />
| /. potasico potash feldspar | /. sodico albite | /.<br />
verde claro amazon stone | /. vitreo sanidine
feldespatoide nm feldspathoid<br />
felsico,-ca adj felsic<br />
felsitico,-ca adj felsic, felsitic<br />
£emico/-ca adj mafic, femic<br />
fenacita nf phenakite<br />
fenaquita nf phenakite<br />
fenestra nf inlier, window<br />
fenocristal nm phenocryst<br />
fendmeno nm phenomena | /. del carst karst<br />
phenomena | /. tectonico tectonics<br />
ferralitico,-ca adj ferralitic<br />
ferrate nm ferrate<br />
f^rreo,-rea adj ferrous, iron-bearing<br />
ferreria nf iron works<br />
ferrete nm copper sulphate<br />
fe'rrico,-ca adj ferric<br />
ferriferOj-ra adj iron-bearing<br />
ferrito nm ferrite (salt)<br />
ferromagnesiano,-na adj ferromagnesian<br />
ferromagnesico,-ca adj ferromagnesian<br />
ferromagnetico,-ca adj ferromagnetic<br />
ferromagnetismo nm ferromagnetism<br />
ferromanganeso nm ferromanganese<br />
ferrometeorito nm iron meteorite<br />
ferroniquel nm ferronickel<br />
ferroso,-sa adj ferrous<br />
ferrugineo,-nea adj ferruginous, iron-bearing<br />
ferruginoso,-sa adj ferruginous, iron-bearing<br />
flbra nf fiber | vein | [Parral, Mex] stockwork<br />
vein<br />
fibrazdn nm the whole <strong>of</strong> the veins in a deposit<br />
or mine<br />
fibroso,-sa adj fibrous<br />
ficha nf index card, filing card | record<br />
fichar vtr to put on an index card | to file, index<br />
fichero nm card index | records<br />
fidelidad nf accuracy<br />
fierro nm iron<br />
fijo,-ja adj attached | n<strong>of</strong>. unattached<br />
fila nf row<br />
filada nf a variety <strong>of</strong> slate<br />
filamento nm filament<br />
filamentoso,-sa adj filamentous<br />
filiforme adj thread-like<br />
filita nf phyllite<br />
filo nm ridge<br />
filogenia nf phylogeny<br />
fildn nm vein, lode (generally large) |<br />
mineralized seam or bed | gold mine | dike |<br />
gangue | [Me"x] small stringer or intersecting<br />
vein | /. atravesado cross vein | /. brechoide<br />
F-2<br />
breccia vein | /. capa bedded vein | /. ciego<br />
blind lode | /. cldstico clastic dike | /. compuesto<br />
compound vein | /. cuneiforme gash vein | /. de<br />
carbon coal seam or measure | /. de contacto<br />
contact vein | /. de curia gash vein | /. de<br />
diaclasa joint vein | /. de roca dike | /. en escalera<br />
or escalonado stair-step vein | /. en reticulado<br />
stockwork | /. en rosario en echelon vein | /.<br />
estratificado banded vein | /. hidrotermal<br />
hydrothermal vein | /. incllnado rake vein | /.<br />
intrusive igneous dike | /. metalifero or mineral<br />
mineralized vein | /. principal master vein,<br />
mother lode | /. rocoso dike | /. sedimentario<br />
sedimentary vein or dike | /. simple ordinary<br />
vein <strong>of</strong> simple structure | /. sin afloramiento<br />
blind vein | /. sin creston blind vein | /.<br />
transversal cross vein<br />
filoniano,-na adj vein or dike-like<br />
filonita nf phyllite-mylonite<br />
filonitizacidn nf veining<br />
filtracidn nf seep | /. de petrcleo oil seep | /. en<br />
frio cold pressing<br />
filtrado,-da adj filtered | nm filtering<br />
filtradornm filter<br />
filtranteo^/ filtering | porous<br />
filtrar vtr/intr to filter | vpr to filter | to filtrate<br />
filtro nm filter | /. de entrada input filter<br />
fineza nf fineness<br />
finiquito nm quitclaim<br />
fino,-na adj fine | pure<br />
fino nm [Asturias, Sp] screened coal up to 6 mm<br />
in size | nmpl fines<br />
finura nf fineness<br />
fiordo nm fjord, fiord<br />
firme adj surface | fisible | fissile<br />
firnnm firn<br />
fisico,-ca adj physical | nm/nf physicist<br />
fisicoquimico,-ca adj physiochemical | nf<br />
physical chemistry<br />
fisil adj fissile<br />
fisilidad nf fissility<br />
fisidn nf fission<br />
fisionable adj fissionable<br />
fisografia nf physiography<br />
fisura nf fissure<br />
fisuracion nf spalling<br />
fisurarse vpr to crack<br />
fit6geno,-na adj phytogenic<br />
flabeliforme adj fan-shaped<br />
flanco nm flank | limb (<strong>of</strong> a fold) | hillside<br />
flaqueza nf [Pe] shaley structure
flecha nf deflection<br />
flexibilidad nf flexibility<br />
flexura nf flexure | flexure folding<br />
filita nf phyllite<br />
fisico,-ca adj physical<br />
flogopita nf phlogopite<br />
flojo,-jaad/ loose<br />
flor nf bloom | /. de antimonio valentinite | /. de<br />
cine hydrozincite | /. de cobalto erythrite | /. de<br />
cobre chalcotrichuite | flor de hierro flos ferri | /.<br />
de niquel annabergite<br />
flotabilidad nf buoyancy<br />
flotation nf flotation | /. diferencial differential<br />
floatation | /. selectiva selective floatation<br />
flourescencia nf flourescence<br />
fluctuacidn nf fluctuation | jitter<br />
fluctuar vintr to fluctuate | to oscillate<br />
fluente adj fluid | flowing<br />
fluidez nf fluidity<br />
fluido,-da adj fluid | nnt fluid<br />
fluir vintr to flow, run<br />
flujo nnt flow, stream | rising tide | flux | /. de<br />
caja cash flow | /. de escombrera debris flow | /.<br />
defango mud flow | /. de lava lava flow | /.<br />
laminar laminar or platy flow | /. magnetico<br />
magnetic flux | /. natural primary drive<br />
mechanism | /. turbulento turbulent flow<br />
fluor nm fluorine | /. espato fluorspar | /. fetido<br />
bituminous feldspar<br />
fluorescencia nf fluorescence<br />
fluorescente adj fluorescent<br />
fluorhidrato nm hydr<strong>of</strong>luoric acid<br />
fluorhidrico,-ca adj hydr<strong>of</strong>luoric<br />
fluorina nf fluorite<br />
fluoruro nm fluoride<br />
fluviomarino,-na adj fluviomarine<br />
foco nm focus | /. sfsmico hypocenter | /.<br />
volcanico volcanic center<br />
foliation nf foliation<br />
foliado,-da adj foliated, foliate | n<strong>of</strong>. unfoliated<br />
foliatura nf foliation<br />
fondo nm background | bottom <strong>of</strong> a mine | /. de<br />
circo | /. de laboreo working face | /. del mar sea<br />
floor | /. del rio riverbed<br />
fonolita nf phonolite | /. leucitica leucite<br />
phonolite | /. nefelinica nepheline phonolite<br />
foraminifero nm foramnifer, foram<br />
forastera nf [Bol] newly discovered vein or mine<br />
forma nf form, mode | /. de presentation mode <strong>of</strong><br />
occurrence | /. enredada stockwork<br />
formacidn nf formation | [Col] clay and other<br />
F-3<br />
material filling open spaces in a lode | /.<br />
productora pay zone | /. c\ue le circundan host<br />
rock<br />
formal adj regular | [M£x] undisturbed<br />
formase vpr to be formed<br />
fdrmico/-ca adj formic<br />
fdrmula nf formula<br />
fosa nf trench | pit | graben | /. marginal trough<br />
| /. oceanica oceanic trench | /. posterior back<br />
deep | /. tectonica graben<br />
fosfatico,-ca adj phosphatic<br />
fosfato nm phosphate<br />
fosfeno nm phosphate<br />
fosfito nm phosphite<br />
fosforado,-da adj phosphorous<br />
fosforecer or fosforescer vtr to phosphoresce<br />
fosforescencia nf phosphorescence<br />
fosforescente adj phosphorescent<br />
fosfdrico,-ca adj phosphoric<br />
fosforita nf phosphorite<br />
fdsforo nm phosphorous<br />
fosforoso,-sa adj phosphorous<br />
fosgenita nf phosgenite<br />
fdsil nm fossil | any mineral or rock | /. guia<br />
index fossil | /. indice index fossil | /. viviente<br />
living fossil<br />
fosilifero,-ra adj fossiliferous<br />
fosilizacidn nf fossilization<br />
fosilizarse vpr to fossilize, become fossilized<br />
foso nm ditch, trench | hole, pit | /. de lodo mud<br />
pit<br />
fdtico,-ca adj photic<br />
fotoclinometro nm photoclinometer<br />
fotogeologfa nf photogeology<br />
fotografia nf photography | /. aerea aerial<br />
photography<br />
fraccidn nf fraction<br />
fractionatidn nf fractionation<br />
fraccionamiento nm fractionation | cracking<br />
fraccionar vtr to crack | to fractionate<br />
fraccionario,-ria adj fractional (math)<br />
fractila nf fractile<br />
fractura nf fracture | /. escalonada step fault | /.<br />
pizarrosa slaty cleavage | /. marginal boundary<br />
fault | /. sencilla or junta joint | /. rellena filled<br />
fracture<br />
fracturar vtr/pr to fracture, break<br />
fracturacidn nf fracturation<br />
fracturamiento nm fracturing | /. intense intense<br />
fracturing<br />
fragmentation nf fragmentation
fragmentar vtr to fragment<br />
fragamento nm fragment<br />
fragil adj brittle<br />
fragilidad nf brittleness<br />
frailesca nf [ Almaden, Sp] lenticular breccia<br />
masses found in schist<br />
francio nm francium<br />
franja nf fringe | belt | /. capilar capillary fringe<br />
| /. de sedimentos mud belt<br />
franjilla nf [Hualgayoc, Pe] argentiferous galena<br />
with stibrdte<br />
frasco nm flask (unit <strong>of</strong> measure for mercury)<br />
frasniano,-na adj Frasnian<br />
Frasniense nm Frasnian<br />
freatico,-ca adj phreatic, subsurface<br />
frecuencia nf frequency | /. acumulada<br />
cumulative frequency<br />
freita n/[Santander, Sp] active landslide<br />
frente nm front | face, heading | /. de colina<br />
brow <strong>of</strong> a hill | /. de pliegue facing<br />
frentero nm miner employed at the working<br />
face <strong>of</strong> a mine<br />
friabilidad adj friability<br />
friccidn nf friction<br />
frigoria nf kilocalorie<br />
frijolillo nm [Guanajuato, Me"x] conglomerate<br />
frisol nm [Col] kidney-bean shapped cobble<br />
found in washing auriferous gravels<br />
fritamiento nm chilling effect<br />
frontdnnm cliff (coastal) | pediment | working<br />
face (mines)<br />
fruta de mono nf gold pan made from the shell<br />
<strong>of</strong> a fruta de mono<br />
fruto nm ore | yield or product | enfrutos in<br />
ore, carrying ore<br />
fucsita nf fuchsite<br />
fuchsita nf fuchsite<br />
fucoide nm fucoid<br />
fuente nm spring or source | /. alcalina alkaline<br />
spring | /. artesiana artesian spring | /.<br />
ascendente artesian spring | /. burga boiling<br />
F-4<br />
spring | /. caliente hot spring (50°C) | /. perenne \ f. periodica intermittent<br />
spring | /. salina salt spring | /. sulfurosa sulfur<br />
spring j /. termal thermal spring (20-50°C)<br />
fuerza nf force | power | /. de una prueba power<br />
<strong>of</strong> a (statistical) test<br />
fugacidad nf fugacity<br />
fumarola nf fumerole<br />
funcidn nf function | /. aculmulata cumulative<br />
function | /. caractertstica characteristic function<br />
| /. de decision decision function | /. de densidad<br />
density function | /. de versimilitud likelihood<br />
function | /. generatriz generating function | /.<br />
periodica periodic function<br />
fundente adj melting | nm flux<br />
fundible adj fusible, easily melted<br />
fundicidn nf smelting | casting | fusion |<br />
melting | foundry, smelting works<br />
fundido,-da adj melted, fused<br />
fundidornm smelter<br />
fundir vtr to melt, smelt <strong>of</strong> cast metal | to fuse<br />
| vpr to melt<br />
fundirse vpr to fuse, melt<br />
fuque nm [Mex] deepest point <strong>of</strong> an excavation<br />
furo nm channel<br />
fusalina nf smelting works<br />
fusibilidad nf fusibility<br />
fusidn nf fusion, melting | /. residual residual<br />
melt<br />
fusionar vtr [Arg] to fuse, melt<br />
fuslina nf [Arg, Sp] smelter<br />
fusulina nf fusulinid
gabarro nm xenolith | nodular fragment <strong>of</strong> rock<br />
or ore<br />
ga"brico,-ca adj gabbroic<br />
gabro nm gabbro<br />
gadolino nm gadolinium<br />
galactita nf fuller's earth<br />
gal£pago nm pig <strong>of</strong> copper, lead or tin<br />
galemador nm furnace for roasting silver ores<br />
galemar vtr to roast silver ores<br />
galeme nm [Mex] a reverberatory furnace <strong>of</strong> 1 to<br />
3 arrobas capacity<br />
galenita nf galena<br />
galera nf an irregularly shaped ore deposit |<br />
furnace for distilling sulphur<br />
galena nf gallery | g. cdrstica karst cave<br />
galerdn nm an irregular deposit <strong>of</strong> large size<br />
galga nf boulder<br />
galmeita nf carbonates and silicates <strong>of</strong> zinc<br />
galleta n/[Asturias, Sp] screened coal (20-50<br />
mm)<br />
gallinazo nm [Titiribi, Col] sphalerite<br />
gallo nm [Me"x] rich ore with needles or grains<br />
<strong>of</strong> gold and silver | a lump <strong>of</strong> native metal,<br />
nugget<br />
gambusino nm prospector | [Mex] itinerant<br />
miner who high-grades a deposit and then<br />
moves on to another<br />
gamella nf gold pan<br />
gammagrafia nf gamma ray log<br />
ga*ndara nf low wasteland<br />
ganchudo,-da adj hackly<br />
gandinga nf fine ore | nfpl concentrates<br />
gang nm dike | vein<br />
ganga nf gangue | g. cuarzosa vein quartz<br />
ganita nf gahnite<br />
garbancillo nm [Sp] fine gravel<br />
garbillar vtr to screen (minerals)<br />
garbillo nm screen<br />
garganta nf gorge<br />
gas nm natural gas | gasoline | g. acido sour gas<br />
| g. asociado associated gas | g. condensado gas<br />
condensate | g. crudo raw gas | g. de petroleo<br />
\ic\uado liquified petroleum gas | g. de pozo de<br />
petroleo bradenhead gas | g. disuelto solution<br />
gas | g. grisu methane | g. humedo condensate<br />
rich gas, wet gas | g. juvenil juvenile gas | g.<br />
Wore unassociated gas | g. licuado condensate |<br />
g. natural natural gas | g. no asociado<br />
G-l<br />
nonassociated gas | g. pobre lean gas, producer<br />
gas | g. seco dry gas<br />
gasificacidn nf gasification<br />
gasiflcar vtr to gasify<br />
gasoducto nm gas pipeline<br />
gasdleo nm diesel oil, gas oil<br />
gasolina nf gasoline<br />
gastable adj erodible<br />
gastar vtr to wear away, erode<br />
gasterdpodo nm gastropod<br />
gasto nm volume <strong>of</strong> flow, discharge | g. de<br />
derrame run<strong>of</strong>f rate | g. solido bed load<br />
gastos nmpl charges, expenses, costs | g. de<br />
desarollo development costs | g. defundicion<br />
smelting charges<br />
gausio nm gauss<br />
gaveta nf [PR] gold pan<br />
gaylussita nf gaylussite<br />
gedinniano,-na adj Gedinnian<br />
gedinniense nm Gedinnian<br />
geiser nm geyser<br />
geiserita nf geyserite<br />
gelatinoso,-sa adj colloid, gelatinous<br />
gelificarse vpr to gel<br />
gelifraccidn nf congelifraction<br />
gelisol nm frozen ground<br />
gelivacidn nf congelifraction<br />
geloide nm firn ice<br />
gema nf gem, precious stone<br />
geminacidn nf twinning<br />
gemmologia nf gemmology<br />
gemmoscopio nm binocular microscope<br />
genero nm genus (pi genera)<br />
genetico,-ca adj genetic<br />
genotipo nm genotype<br />
geoanticlinal nm geoanticline, geanticline<br />
geociencia nf geoscience, earth science<br />
geocratico,-ca adj epeirocratic<br />
geocronita nf geochronite<br />
geocronologia nf geochronology<br />
geocrono!6gico,-ca adj geochronological<br />
geoda nf geode<br />
geodepresion nf geodepression<br />
geodesia nf geodesy<br />
geodesico,-ca adj geodesic, geodetic | nf<br />
geodesy, geodetics<br />
geodesta nm geodesist<br />
geod£tico,-ca adj geodetic<br />
geodinamico,-ca adj geodynamic | nf<br />
geodynamics<br />
ge<strong>of</strong>isico,-ca adj geophysical | nf geophysics |
ntn/f geophysicist | g. aplicado applied<br />
geophysiscist<br />
gedfono nm geophone<br />
geognosia nf geology<br />
geohidrologia nf geohydrology<br />
geoide nm geoid<br />
geoisoterma nf geoisotherm<br />
geologia nf geology | g. aplicada applied<br />
geology | g. aplicada a la ingeneria engineering<br />
geology | g. de minus mine geology | g. del<br />
petroleo petroleum geology | g. dinamica<br />
dynamic geology | g. economica economic<br />
geology | g. estructural structural geology | g.<br />
fisica physical geology | g. general general<br />
geology | g. historica historical geology | g.<br />
marina marine geology<br />
geo!6gico,-ca adj geological<br />
ge61ogo,-ga nm/f geologist<br />
geomagn6tico,-ca adj geomagnetic | nf<br />
geomagnetics<br />
geomagnetismo nm geomagnetism<br />
geomorfologfa nf geomorphology<br />
geoquimico,-ca adj geochemical | nm or/<br />
geochemist | nf geochemistry<br />
georgiano,-na adj Georgian<br />
Georgiense nm Georgian<br />
geosinclinal adj geosynclinal | nm geosyncline,<br />
geosynclinal<br />
geosutura nf geosuture<br />
geotectonico,-ca adj tectonic | nf geotectonics<br />
geotermico,-ca adj geothermal | nf geothermics<br />
germanotipico,-ca adj Germanotype<br />
gersdorfita nf gersdorffite<br />
giba nf hump (rundhocker)<br />
gibsita nf gibbsite<br />
gigante nm monitor, giant (used in hydraulic<br />
mining <strong>of</strong> placers)<br />
giobertita nf magnesite<br />
girasol nm fire opal<br />
givetiano,-na adj Givetian<br />
givetiense adj Givetian<br />
glaciacion nf glaciation | g. final latest (Wiirm)<br />
glaciation | g. local local glaciation<br />
glaciar adj glacial | nm glacier | g. active active<br />
glacier | g. alpino alpine or mountain glacier |<br />
g. colgante hanging glaciar | g. continental<br />
continental glacier | g. de circo cirque glaciar |<br />
g. de montana alpine or mountain glacier | g. de<br />
plateau plateau glaciar | g. de roca rock glacier |<br />
g. de valle alpine or valley glacier | g. fluyente<br />
active or flowing glacier | g. groenlandes<br />
G-2<br />
continental glacier | g. rocoso rock glaciar<br />
glaciario,-ria adj glacial<br />
glaciarismo nm glaciology<br />
glacioeolico,-ca adj glacio-eolitic<br />
glaciologia nf glaciology<br />
glaucodot nm glaucophane<br />
glauc<strong>of</strong>ana nf glaucophane<br />
glauconia nf glauconite<br />
glauconitico,-ca adj glauconitic<br />
glauconitizacidn nf glauconitization<br />
gleba nf [Alicante, Sp] thin layer <strong>of</strong> precipitated<br />
salt | g. tectonica fault block<br />
gliptogenesis nf glyptogenesis<br />
globo nm globe, sphere<br />
globulito nm microlite<br />
gldbulo nm globule<br />
globuloso,-sa adj globular<br />
gmelita nf gmelinite<br />
gneis nm gneiss<br />
gneisico,-ca adj gneissic<br />
gneisoide adj gneissoid<br />
geotita nf goethite<br />
golfo nm gulf<br />
goma nf glue | g. ardbiga gum arabic | g. de<br />
tragacanto gum tragacanth<br />
gonidgrafo nm [Sp] plane table<br />
goniometro nm goniometer<br />
gongora nf [Col] cavity or vug in a lode<br />
gongorado,-da adj vuggy<br />
gotera nf precipitate | g. calcdrea calcareos sinter<br />
gotlandiense adj Silurian<br />
grada nf stope j g. al reves overhand stope | g.<br />
abierta open stope | g. de relleno filled stope | g.<br />
derecha underhand stope | g. ramal branch<br />
stope<br />
gradiente nm gradient | g. adiobatico adiobatic<br />
gradient | g. hidrdulico hydraulic gradient | g.<br />
geotermico geothermal gradient | g. gravimetrico<br />
gravitational gradient | g. termico thermal<br />
gradient<br />
grado nm degree | gradient | g. de libertad<br />
degrees <strong>of</strong> freedom | g. geotermico geothermal<br />
gradient<br />
graficadorwra plotter<br />
grafico,-ca adj graphic | nf graphics | graph,<br />
chart | nm graph, chart<br />
grafitico,-ca adj graphitic<br />
grafito nm graphite | g. natural natural graphite<br />
grafitoso,-sa adj [Vz] graphitic<br />
gramo nm gram<br />
granada nf garnet
granalla nf small grains <strong>of</strong> metal, generally gold<br />
granate adj garnet (color) | nf garnet |<br />
[Guadalcazar, Mex] crystalline cinnabar | g.<br />
almandino almandinite<br />
granatffero,-ra adj garnetiferous, garnet-bearing<br />
grancilla n/[Sevilla, Sp] screened coal (15-30<br />
mm) | [Asturias, Sp] screened coal (5-12 mm)<br />
granip
grosularita nf grossularite<br />
grueso,-sa adj thick | coarse | hard (water)<br />
grueso nm thickness <strong>of</strong> a bed, vein, etc. |<br />
[Sevilla, Sp] large coal (600mm in size) |<br />
[Arnao, Sp] coal up to 7 cm in size<br />
grupo nm group | cluster | g. de volcanes<br />
volcanic cluster<br />
gruta nf cave, grotto, cavern<br />
guache nm [Col] a layer between pay-dirt and<br />
overburden <strong>of</strong> low-grade in placers | loose<br />
stones derived from bedrock <strong>of</strong> a placer<br />
guadaloso/-sa adj swampy<br />
guaico nm [Col] excavation <strong>of</strong> indiginous origin<br />
guaira nf [Bol, Pe] a small, clay windblown<br />
smelting furnace used by Indians to refine<br />
high-grade silver ores<br />
gualda nf [Pe] chalcopyrite | [Chacas, Pe]<br />
bornite<br />
gualdado,-da adj yellow<br />
gualdo,-da adj yellow<br />
guanero,-ra adj guano<br />
guaracu nm [Col] basalt, diorite, or greenstone<br />
G-4<br />
guaraturo nm [Vz] flint | quartz<br />
giiedal nm [Inguaran, Mex] copper skarn<br />
deposit<br />
guia nf highest grade part <strong>of</strong> an orebody | [Ch]<br />
small, lateral veins | [Pe] veinlet in a<br />
stockwork | g. mejicana small earthenware<br />
plate in which amalgam was tested during the<br />
patio process <strong>of</strong> amalgamation <strong>of</strong> silver ores<br />
guija nf pebble, gravel, cobble | matrix, gangue<br />
| [Mex] milky or bull quartz | [Batopilas,<br />
Mex] calcite | g. de oro [Guanajuato, Me"x] gold-<br />
bearing quartz<br />
guijarra nf stony place<br />
guijarro nm cobble, pebble, stone<br />
guijarroso,-sa adj stony, pebbly<br />
guijo nm gravel<br />
guijole nm [Durango, Mex] wood tin found in<br />
rhyolite, generally kidney shaped<br />
guijoso,-sa adj pebbly, gravelly<br />
guinche nm winch | hoist<br />
guinar vtr to change direction, as for a vein, etc.<br />
guiris nm mining expert
H<br />
haba nf nodule | nodular (bean-like) piece <strong>of</strong><br />
ore encased in gangue<br />
habilitacidn nf outfit, equipment; fitting out<br />
habilitar vtr to equip, fit out<br />
ha'bito nm habit<br />
hacer vtr to make | h. la ceja [Col] to recover<br />
gold from a gold pan | h. mina to make a mine,<br />
that is, be pr<strong>of</strong>itable to work | h. tierras [Mex]<br />
to work a placer<br />
hacienda nf smelting or reduction works | h. de<br />
beneficio amalgamation works | h. de<br />
cianuracion cyanide plant | h. defundicion<br />
smelting works | h. de maquila custom mill<br />
halmir
hidrato nm hydrate<br />
hidrocarburo nm hydrocarbon<br />
hidrocincita nf hydrozincite<br />
hidrocloruro nm hydrogen chloride<br />
hidrocraqueo nm hydrocracking<br />
hidrodinamico,-ca adj hydrodynamic<br />
hidrogeno nm hydrogen | h. pesado deuterium |<br />
h. sulfurado hydrogen sulfide<br />
hidrogeologia nf hydrogeology<br />
hidrografia nf hydrography<br />
hidrolacolito nm pingo<br />
hidrolisis nf hydrolysis<br />
hidrolita nf hydrolith<br />
hidrologia nf hydrology | h. de aguas<br />
subterraneas groundwater hydrology<br />
hidrologo nm hydrologist<br />
hidromuscovita nf illite<br />
hidrdsfera nf hydrosphere<br />
hidrosilicato nm hydrosilicate<br />
hidrosta"tico,-ca adj hydrostatic<br />
hidrotermal adj hydrothermal<br />
hidrotermico,-ca adj hydrothermal<br />
hidroxido nm hydroxide<br />
hielo nm ice | n. de glaciar glacial ice<br />
hierro nm iron | iron ore | [Me"x] low grade<br />
silver ore <strong>of</strong> 20 to 35 ounce per ton | h. acicular<br />
goethite | n. arcilloso clayey ironstone | n.<br />
arsenical arsenopyrite | h. azul vivianite | n.<br />
blanco arsenopyrite | h, brillante specularite | n.<br />
cromado chromite | h. de pradera bog iron ore |<br />
h. de (los) pantanos bog iron ore | h. de (los)<br />
prados bog iron ore | h. de los estanques bog iron<br />
ore | h. espatico siderite | h. especular<br />
specularite | h. espejado specularite | h. espinela<br />
hercynite | h. fangoso bog iron ore | h, lintoso<br />
bog iron ore | h. magnetico magnetite | h.<br />
magnetifero [Cartagena, Sp] ore carrying 33%<br />
metallic iron | h. meteorico iron from a meteor |<br />
h. nativo native iron | h. oligisto hematite | h.<br />
pantanoso bog iron ore | h. pardo limonite | h.<br />
rojo hematite | h. seco [Cartagena, Sp] ore<br />
carrying 50% or better metallic iron | h.<br />
titanado ilmenite | h viejo scrap iron | [Pe] iron<br />
oxide-rich silver ore<br />
higado nm [Pe] gold-bearing iron oxide | a<br />
lenticular deposit <strong>of</strong> gold<br />
hijuela nf small thread <strong>of</strong> ore or mineral<br />
hilo nm small vein or thread <strong>of</strong> ore in a vein | h.<br />
alto small vein coming out <strong>of</strong> the hanging wall<br />
| h. bajo small veins going into the footwall | h.<br />
de cajon vertical vein | h. de la veta strike <strong>of</strong> a<br />
H-2<br />
vein | h. del criadero strike or direction <strong>of</strong> a<br />
deposit | h. del desposorio [Villalpando, Mex]<br />
small veins <strong>of</strong> gold-bearing clay | ah. de veta<br />
along strike <strong>of</strong> a vein<br />
hinchado,-da adj swollen<br />
hincharse vpr to swell, as for clays<br />
hinchazdn nm increase in volume <strong>of</strong> rock<br />
extracted from a mine due to breakage<br />
hiperstena nf hypersthene<br />
hipidiomorfo,-fa adj hypidiomorphic<br />
hipocentro nm hypocenter<br />
hipocristalino,-na adj hypocrystalline<br />
hipogenico,-ca adj hypogene<br />
hipolimnico,-ca adj hypolimnetic<br />
hipomagma nf hypomagma<br />
hipdtesis nf hypothesis | h. altemativa<br />
alternative hypothesis | h. compuesta<br />
compound hypothesis | h. nula null hypothesis<br />
| h. simple simple hypothesis<br />
histograma nm histogram<br />
historia nf history | h. de la tierra earth's history<br />
hito nm survey monument | h. de limite<br />
boundary monument<br />
hocino nm narrows, canyon, gorge<br />
hojfmanita nf h<strong>of</strong>mannite<br />
hogar nm hearth | h. escoriador slag hearth | de<br />
h. abierto open hearth<br />
hoja nm slab or sheet (<strong>of</strong> metal) | nappe | h. de<br />
arrastre nappe | n. de libra [Guanajuato, Me"x]<br />
ampelite | h. de papel finely laminated clay,<br />
slate or talc | h. de pizarra slab <strong>of</strong> slate<br />
hojoso,-sa adj laminated<br />
holmio nm holmium<br />
holocenico,-ca adj Holocene<br />
holoceno,-na adj Holocene | nm Holocene<br />
holocristalino,-na adj holocrystalline<br />
holoedro nm holohedron<br />
holocarstnm holokarst<br />
holotipo nm holotype<br />
homeoblastico,-ca adj homeoblastic<br />
homoclinal nm homocline<br />
homogeneidad nf homogeneity<br />
homogeneo,-nea adj homogenous<br />
homoscedasticidad nf homoscedasticity<br />
homotaxico,-ca adj homotaxial<br />
hondo,-da adj deep | low, low-lying (land) | nm<br />
bottom | depth<br />
hondonada nf trough, depression | hollow, dip,<br />
ravine | h. carstica karst depression<br />
hondura nf depth | [Col] large pothole in<br />
bedrock <strong>of</strong> a placer
horizonte nm bed, layer, stratum | seam |<br />
horizon | h. del suelo soil horizon | h. guia<br />
datum | h. petrolifero oil-bearing formation<br />
hornablenda nf hornblende | h. esquistosa<br />
hornblende schist<br />
hornable*ndico,-ca adj hornblende<br />
hornablendeifero,-ra adj hornblende-bearing<br />
hornacho nm excavation<br />
hornada nf [met] a melt<br />
hornaguear vtr to work or extract hard coal<br />
hornaguera nf hard coal | h apizarrada slate coal<br />
| terreno de h. coal measures<br />
hornagueror-ra adj bearing hard coal<br />
hornaza nf small furnace<br />
hornfelsa nf hornfels<br />
hornfelsitico,-ca adj hornfelsic<br />
homillo nm small furnace<br />
homo nm kiln | furnace | h. de cal lime kiln | h.<br />
de ensayar assay furnace | h. defoso pit furnace<br />
| h. defundicion smelting furnace | [Mex] blast<br />
furnace | h. de reverbero reverberatory furnace<br />
horrura nf scoria, dross<br />
horsteno nm chert<br />
hoya nf any deep excavation | pit, ditch, hole |<br />
basin, trough | sink | pothole in a river bed |<br />
valley, dale | [Pe] river bed | h. de drenaje<br />
watershed | h. de explosion shot hole | h. glacial<br />
kettle hole<br />
hoyada nf depression, hollow, dip<br />
hoyar vtr to dig holes in, make holes<br />
hoyo nm hole, pit | h. de disparo shot hole<br />
hoz nf gorge, ravine<br />
huachaca n/[Cerro de Pasco, Pe] ore paid to<br />
workers or lessors<br />
huaico nm [Arg, Pe] debris flow, mud flow<br />
huaillaripear vtr [Pe] to steal ore | to extract<br />
gold from tailings by means <strong>of</strong> running water<br />
and sheepskins<br />
huairona nf [Pe] lime kiln<br />
huairuna nf [Pe] small, earthen retort used to<br />
recover mercury from amalgam<br />
huambi nm [Pe] realgar<br />
huarina nf [Potosi, Bol] member <strong>of</strong> a cuadrillo or<br />
gang <strong>of</strong> weekend Creole miners who worked the<br />
mines for their own benefit from Saturday<br />
night to Monday morning and on feast days<br />
H-3<br />
huayre nm [Potosi, Bol] clay reduction furnace<br />
once used by Indians<br />
huecarrera nf cavern filled with ore in the form<br />
<strong>of</strong> stalagmites and stalagtites<br />
hueco,-caod/ hollow | loose | nm vug<br />
huellanf track, trace | [Mex] trace <strong>of</strong> gold<br />
recovered in assaying | h. defision fission track<br />
hueso nm [Ch] yellowish, compact sodium<br />
nitrate<br />
huevo nm [Col] belly or swollen piece <strong>of</strong> ore in<br />
a beaded vein | large boulder in alluvium or<br />
soil<br />
huincha nf [Bol, Ch] measuring tape<br />
huinche nm winch<br />
huincho nm [Pe] magnetite | hematite<br />
hulla nf black bituminous coal | h. apizarrada<br />
slate coal | h. blanca white coal | h. brillante<br />
anthracite | h. cannel cannel coal | h. de llama<br />
bituminous coal | h. grasa s<strong>of</strong>t coal | h. magra<br />
non-coking anthracite | h. para gas gas coal | h.<br />
picaforme jet | h. seca coking coal<br />
hullero,-ra adj coal | nf coal mine | coal bed |<br />
nm coal miner<br />
hullifero,-ra adj coal-bearing<br />
hullita nf anthracite<br />
humedecer vtr to moisten, humidify<br />
humedad nf humidity | h. de canter a quarry<br />
water | h. del suelo soil moisture<br />
hiimedo,-da adj humid, wet, damp<br />
humilde metal nm [Pe] silver ore that readily<br />
amalgamates<br />
humita nf humite<br />
humo nm smoke | los humos [Cerro de Pasco,<br />
Pe] 'the smoke 1, a controversy brought about<br />
by the installation <strong>of</strong> a copper smelter without<br />
even so much as a bag house for pollution<br />
control<br />
humor nm [BC, Mex] trace<br />
hundido,-da adj caved | nm dip<br />
hundimiento nm subsidence | caving | dip <strong>of</strong> a<br />
bed | pitch <strong>of</strong> a fold axis | h. en caldero caldron<br />
subsidence<br />
hundirse vpr to dip | to subside | to cave<br />
huroniano,-na adj Huronian
iacotinga nf [Br] quartz-hematite-gold ore<br />
icenenseotif; Icenian | nm Icenian<br />
icosaedro nm icosahedron<br />
icositetraedro nm icositetrahedron<br />
ida y vuelta nf round trip (in drilling)<br />
idiobldsticOs-ca adj idioblastic<br />
idiocroma'tico/-ca adj idiochromatic<br />
idi6geno,-na adj syngenetic<br />
idiomorfo/-fa adj idiomorphic<br />
idocrasa nf vesuvianite, idocrase<br />
igarapes nmpl branches <strong>of</strong> a river<br />
igneo/-nea adj igneous<br />
ignifugo,-ga adj refractory<br />
Igualadense nm Igualadian<br />
ilita nf illite<br />
iluminacidn nf illumination<br />
iluvial adj illuvial<br />
imagen nf image<br />
imdn nm magnet, loadstone | magnetite<br />
imanacidn nf magnetization<br />
imanar or imantar vtr to magnetize | vpr to<br />
become magnetized<br />
imantacion nf magnetization<br />
imbibicion nf imbibition, absorption<br />
imbricacidn nf imbrication, overlapping<br />
imbrkado,-da adj imbricated, imbricate,<br />
overlapping<br />
imbricar vtr to imbricate, overlap<br />
imma nf red ocher<br />
impaccidn nf impact<br />
impacto nm impact<br />
impar adj odd, uneven | nm odd number<br />
impedancia nf impedance | i. acustica acoustic<br />
impedence<br />
impederreventones nmpl [Vz] blowout<br />
preventer (on a drill rig)<br />
impermeabilidad nf impermeability<br />
impermeable adj impermeable | impervious<br />
impregnacidn nf impregnation<br />
impregnado,-da adj impregnated<br />
impregnar vtr to impregnate | vpr to become<br />
impregnated<br />
impresion nf impression, imprint<br />
impronta nf impression, imprint, cast, mark<br />
impuesto nm tax | i. de production severance tax<br />
impulsar vtr to drive<br />
impulsidn nf natural drive mechanism for oil<br />
and gas pools | i. por agua water drive | i. par<br />
1-1<br />
cascjuete degas gas cap drive | i. por gas disuelto<br />
solution gas drive | i por gravedad gravity<br />
drive<br />
impulse nm impusle<br />
impureza nf impurity<br />
impurificado,-da adj impure, contaminated<br />
impurificar vtr to contaminate<br />
impuro,-ra adj impure<br />
inagotable adj inexhaustible<br />
inanga nf a gray nephrite<br />
inarm6nico/-ca adj disharmonic, inharmonic<br />
incarbonizacidn nf coalification<br />
inciso,-sa adj incised<br />
inclinacion nf declivity, slope | gradient | [Arg,<br />
Ch] dip | i. magnetica magnetic dip | sin i.<br />
aclinic<br />
inclinado,-da adj inclined<br />
inclinarse vpr to dip | to slope, rake<br />
inclinometro nm dipmeter | clinometer,<br />
inclinometer<br />
incluido,-da adj imbedded, included<br />
inclusidn nf inclusion | i. anexa cognate<br />
inclusion | i de escoria salg inclusion | i.<br />
exogena xenolith | i. fluida fluid inclusion | ;'.<br />
gaseosa gas inclusion | i. negativa negative<br />
crystal | i. solida solid inclusion<br />
incoherente adj incoherent, unconsolidated<br />
incoloro,-ra adj colorless<br />
incolumita nf flexible sandstone<br />
incompetente adj incompetent<br />
incongruente adj incongruent, incongruous<br />
inconsecuente adj inconsequent<br />
inconsistente adj unstable, loose, uncompacted<br />
incorporation nf incorporation (coalification)<br />
increcidn nf incretion<br />
incremento nm increment, recharge<br />
incrustacion nf incrustation, inlay | scale<br />
incrustado,-da adj incrusted, incrustate |<br />
embedded<br />
incrustante adj incrusting, scale-forming | nm<br />
incrustant<br />
incrustar vtr to incrust, inlay | vpr to embed<br />
itself<br />
incurrente adj incurrent, influent<br />
independencia nf independence | i. en<br />
probabilidad indepenence in probability<br />
indicacidn nf indication, generally favorable for<br />
ore<br />
indicador nm radioactive tracer | i. de<br />
deformacion strain gauge | i. de desviacion drift<br />
indicator | i. de pH pH meter | i. de pr<strong>of</strong>undidad
depth meter<br />
indicatriz nf indicatrix<br />
mdice nm index | i. ca.lco-alca.lino alkali-lime<br />
index | t. de dureza hardness number | i, de<br />
escurrimiento run<strong>of</strong>f coefficient | i. de<br />
hinchamiento swelling index | i. de mareafosil<br />
index fossil | i. de petroleo show <strong>of</strong> oil | i. de<br />
Prandtl Prandtl number | i. de productividad<br />
productivity index (crude oil) | i. de refraccion<br />
index <strong>of</strong> refraction | f. de Reynold Reynold's<br />
number | i. K K index<br />
indicios nmpl traces, indications<br />
indigacidn nf search | examination<br />
indigo adj/nm indigo | i. de cobre covellite<br />
indigolita nf indicolite<br />
indio nm indium | i. de faltriquera Indian who<br />
avoided the mita by means <strong>of</strong> a fee paid to his<br />
employer<br />
indisolubilidad nf indisolubility<br />
indistinto,-ta adj indistinct<br />
indos nmpl [Vz] invert<br />
induction nf induction | inference | i. estadistica<br />
statistical inference<br />
inducido,-da adj induced<br />
inducidor,-dora adj inducing<br />
| nm inducer<br />
inducir vtr to induce<br />
inductancia nf inductance<br />
inductivo,-va adj inductive<br />
inductor,-ora adj inducing | nm inductor | i. de<br />
tierra earth inductor<br />
induracion nf induration<br />
indurar vtr to indurate<br />
indurado,-da adj indurated<br />
industria nf industry | i. extractiva mining<br />
industry | i. minera mining industry | i.<br />
petrolera petroleum industry<br />
inerte adj inert | nmpl aggregates<br />
inestable adj unstable<br />
inestabilidad nf instability<br />
inexacto,-ta adj inaccurate<br />
inexplotable adj unexploitable<br />
inexplotado,-da adj unexploited<br />
inexplorado,-da adj unexplored<br />
infeccionar vtr [Pe] to contaminate, pollute<br />
infecundo,-da adj barren <strong>of</strong> ore, sterile<br />
inferior adj lower | inferior<br />
infiltracion nf infiltration<br />
infiltrar vtr to infiltrate<br />
infiltrarse en vpr to infiltrate into<br />
inflacion nf tumescence | inflation<br />
1-2<br />
inflado,-da adj inflated<br />
inflexion nf inflection<br />
influjo nm inflow | flood tide<br />
informador nm oil scout<br />
Infracambrico nm Infracambrian<br />
infraglacial adj subglacial<br />
inframargenal adj inframarginal<br />
infrapuesto,-ta adj underlying<br />
mfrarrojo,-ja adj infrared | nm infrared<br />
infrayacente adj underlying<br />
infundible adj infusible<br />
mfusorio,-ria adj infusorial<br />
infusoriolita nf diatomaceous earth<br />
ingenieria nf engineering | e. minera mining<br />
engineering | e. petrolera petroleum<br />
engineering<br />
ingeniero nm engineer | i. de lodos mud<br />
engineer | i de minus mining engineer | i. de<br />
nivel [Ec] levelman | i. minero mining engineer<br />
| i. petrolero petroleum engineer<br />
ingenio nm mill, usually consisting <strong>of</strong> two<br />
stamps | smelting works | sluice<br />
ingresion nf ingression<br />
ingreso nm entrance | nmpl earnings, revenues<br />
inhalante adj incurrent<br />
inhomogeneidad nf inhomogeneity<br />
inmadurez nf immaturity<br />
inmaduro,-ra adj immature<br />
inmersion nf immersion<br />
inmerso,-sa adj immersed<br />
inmiscibilidad nf immiscibility<br />
inmiscible adj immiscible<br />
inorganico,-ca adj inorganic<br />
inosilicato nm inosilicate<br />
inquilinato nm leasehold<br />
insecuente adj insequent<br />
msito,-ta adj in situ<br />
insolito nm insolith<br />
insolubilidad nf insolubility<br />
insula nf island<br />
insularidad nf insulosity<br />
intensidad nf intensity<br />
interarrecife nm interreef<br />
intercalation nf intercalation | inset | i. en forma<br />
lenticular interlensing<br />
intercalado,-da adj intercalated, interjacent | nm<br />
intercalate<br />
intercalar vtr to intercalate<br />
intercapa nf interbed<br />
intercarga nf interburden<br />
interclusidn nf intercalation
intercorriente adj inters tream<br />
intercrecimiento nm intergrowth<br />
intercuenca nf interbasin<br />
intercumulo nm intercumulus<br />
interdigitacidn nf intertounging, interfingering<br />
interdigitado,-da adj intertounged,<br />
interfingered<br />
interduna nf interdune<br />
interestratificacidn nf interbedding<br />
interestratificado,-da adj interbedded<br />
interestratiflcar vtr to interbed<br />
interfaz nf interface<br />
interferencia nf interference<br />
interfluvio nm interfluve<br />
interlacustre adj interlacustrine<br />
interlobulado,-da adj interlobate<br />
intermedio,-dia adj intermediate<br />
intermitente adj intermittent<br />
interno,-na adj inner, interior | internal<br />
interparticula nf interparticle<br />
interplegamiento nm interfolding<br />
interpolacidn nf interpolation<br />
interpolar vtr to interpolate<br />
interprecipitado nm interprecipitate<br />
interseccidn nf [math] intercept<br />
intersticio nm interstice<br />
intervale nm interval | i. de aceptadon<br />
acceptance interval or region | /'. de close class<br />
interval | i. de confianza confidence interval | i.<br />
de erosion erosional interval | i. de rechaza<br />
rejection interval or region | i. intercuartilar<br />
interquartile interval<br />
interyacente adj interbedded<br />
intradelta nf delta plain<br />
intrafiloniano,-na adj between veins<br />
intraformacional adj intraformational<br />
intratelurico,-ca adj intratelluric<br />
intruido,-da adj intrusive<br />
intruir vtr to intrude<br />
intrusivor-va adj intrusive | nf intrusive<br />
intumescencia nf intumescence, swelling<br />
inundable adj easily flooded<br />
immdacidn nf flood | flooding<br />
inundado,-da adj flooded, inundated<br />
inundar vtr to flood, inundate<br />
inverso,-sa adj inverted, inverse<br />
invertido,-da adj inverted | nm invert<br />
invertimiento nm [Pe] discharge, outfall<br />
invertir vtr to invert | to plunge (transit) | to<br />
revert | to invest | [Pe] to discharge, empty<br />
investigacidn nf research, investigation,<br />
1-3<br />
exploration<br />
investigar vintr to research, investigate, explore<br />
inyeccidn nf injection | i. de agua water flood or<br />
injection | i. de espuma foam injection | i. de gas<br />
gas injection | i. de vapor steam flooding or<br />
injection | i forzada forced injection | i.<br />
magmdtica magmatic injection<br />
inyectado,-da adj injected<br />
inyectarirfr to inject<br />
idnico,-ca adj ionic<br />
ionizacidn nf ionization<br />
ionizar vtr/pr to ionize<br />
iondgeno,-na adj inorganic<br />
ipabismal adj hypabyssal<br />
ir a pena vtr [Col] to hit a paystreak in a placer<br />
iridio nm iridium | /. nativo native iridium<br />
iridiscencia nf iridescence<br />
iridiscente adj iridescent<br />
iridosmina nf iridosmine, iridosmium<br />
iris nm iridescent hyaline quartz | i. calcedonia<br />
iridescent chalcedony | i. citrino yellow hyaline<br />
quartz<br />
irisacidn nf iridescence<br />
irisado,-da adj iridescent<br />
irisar vintr to iridesce, be iridescent | vpr to<br />
become iridescent<br />
irradiacidn nf irradiation<br />
irradiar vtr to irradiate<br />
isla nf island | /'. de barrera barrier island | i. en<br />
rosario island chain | i. ocednica oceanic island<br />
isleo nm klippe | island | /". cobijante erosional<br />
remnant<br />
isleta nf islet<br />
islete nm islet<br />
islilla nf islet<br />
islote nm islet<br />
isoanomalia nf isoanomaly<br />
isoandmalo,-la adj isoanomalous<br />
isoantracita nf isoanthracite<br />
isobara nf isobar<br />
isobarico,-ca adj isobaric<br />
isobarometrico,-ca adj isobarometric<br />
isobata nf isobath<br />
isocarbono nm isocarbon<br />
isoclinal adj isoclinal | nm isocline<br />
isoclinico,-ca adj isoclinic<br />
isoclino,-na adj isoclinal<br />
isocora nf isochore<br />
isocromo nm isochrome<br />
isocrona nf isochron<br />
isdcrono,-na adj isochronous
isodina nf isomagnetic line<br />
isodinamico,-ca adj isodynamic<br />
is<strong>of</strong>ana nf franklinite<br />
isdgala nf isogal<br />
isdgama nm isogam<br />
isogeoterma nf isogeotherm<br />
isdgono,-na adj isogonic | nf isogonic line<br />
isohalina nf isohaline<br />
is<strong>of</strong>eta nf isohyet<br />
isoipsa nf contour line<br />
isolmea nf isopleth<br />
isomegatia nf isomegathy<br />
isomerismo nm isomeric<br />
isomerizacidn nf isomerization<br />
isdmero,-ra adj isomeric | nm isomer<br />
isometamorfismo nm isometamorphism<br />
isomdrfico,-ca adj isomorphic<br />
isomorfismo nm isomorphism<br />
isomorfo nm isomorph<br />
isopaca nf isopach<br />
isdpaco nm isopach<br />
isoparafina nf isoparrafin<br />
isopentano nm isopentane<br />
isopleta nf isopleth<br />
isdpora nf isopore<br />
isopreno nm isoprene<br />
isoquimico,-ca adj isochemical<br />
isorrumbado,-da adj follows the same strike<br />
isosista nf isoseismic line<br />
isostasia nf isostacy<br />
isostasis nf isostacy<br />
isostatico,-ca adj isostatic<br />
isotangente nm isotangent<br />
isoterma nf isotherm<br />
isotermico,-ca adj isothermic, isothermal<br />
isotermo,-ma adj isothermal<br />
isotipico,-ca adj isotypic<br />
1-4<br />
isotipo nm isotype<br />
isotdpico,-ca adj isotopic<br />
isdtopo nm isotope<br />
isotropia nf isotropy<br />
isotrdpico/-ca adj isotropic<br />
isotropismo nm isotropism<br />
isdtropo,-pa adj isotropic<br />
isoyeta nm isohyet<br />
istmo nm isthmus<br />
itabo nm [Vz] inlet<br />
itacolumita nf flexible sandstone<br />
itali nm [Mex] obsidian<br />
italita nf leucitite<br />
iteracidn nf iteration<br />
iterar vtr to iterate<br />
iterativo,-va adj iterative<br />
iterbico,-ca adj ytterbic<br />
iterbio nm ytterbium<br />
itria nf yttria<br />
itrico,-ca adj yttric<br />
itrio nm yttrium<br />
itrocerita nf yttrocerite<br />
itr<strong>of</strong>luorita nf yttr<strong>of</strong>luorite<br />
itroilmenita nf samarskite<br />
itrotantalita nf yttrotantalite<br />
itrotitanita nf keilhauite<br />
itztle or itztli nm [Mex] obsidian<br />
iu nm yu, nephrite<br />
ixtajale nm [Tasco, M£x] earthy iron oxide |<br />
[Zacualpan, Mex] silver sulphide disseminated<br />
in iron oxides | [Sultepec, M£x] native wire<br />
and leaf silver with gypsum, cerargyrite,<br />
argentite, and oxides<br />
izadornm hoist<br />
izaje nm hoisting<br />
izar vtr to hoist<br />
izcu nm [Pe] lime
jabalcdnnm trench brace<br />
jabalconar vtr to shore, brace, prop<br />
Jabalinense nm Acadian<br />
jabeca [Almaden, Sp] a type <strong>of</strong> furnace used to<br />
d is till mercury<br />
jable nf a fine, white sand<br />
jabdn nm [Guanajuato, Mex] friable, talcose,<br />
silver-bearing ore | [Villa Nueva, Hon] friable,<br />
talcose, siliceous, gold and silver sulfide-<br />
bearing ore | [Col] slickenside | ;'. de montana<br />
steatite | halloysite | ;'. de sastre steatite,<br />
soapstone | ;. de soldado smectite | j. de vidrieros<br />
pyrolusite | j. mineral smectite<br />
jaboncillo nm clay, gouge, generally as an<br />
alteration product <strong>of</strong> country rock | [Potosi,<br />
Bol] kaolinite | [Ch] nitrate <strong>of</strong> soda streaked<br />
with lime | [Mex] clay selvage on a vein |<br />
steatite, talc<br />
jabre nm [Gal] a fine, white feldspathic sand<br />
derived from altered granite<br />
jacintina nf idocrase<br />
jacinto nm hyacinth, jacinth (a transparent red<br />
var <strong>of</strong> zircon) | cinnamon-stone (a var <strong>of</strong><br />
garnet) | j. de Ceildn zircon | j. de Compostela<br />
dark red crytalline quartz | j. de disentis<br />
cinnamon-stone, a variety <strong>of</strong> garnet | ;. de los<br />
volcanes idocrase | _;'. occidental bright yellow<br />
variety <strong>of</strong> topaz | _;'. oriental orange variety <strong>of</strong><br />
corundum | j. volcanico idocrase<br />
Jacksoniense nm/adj Jacksonian<br />
jacksonita nf prehnite<br />
jacupirangita nf jacupirangite | ;'. apatitica<br />
apatite jacupirangite | j. feldespdtica feldspar<br />
jacupirangite<br />
jacupirangitico,-ca adj jacupirangitic<br />
jacutinga nf jacutinga, itabirite<br />
jade nm jade | j. de saussure saussurite | j.<br />
oriental tremolite<br />
jade-albita nf maw-sit-sit, jade-albite<br />
jadeita-egirina nf a mixture <strong>of</strong> jadeite and<br />
aegirine<br />
jagua nf [Col] powdery, sulfide ore | black<br />
sands in placers | concentrates rich in gold and<br />
heavy minerals | j. de recorte heavy mineral<br />
residues from gold recovery in an arrastre<br />
jaguadero nm outlet (<strong>of</strong> a river)<br />
jagiiel nm [Arg, Ch] pit or trench filled with<br />
water<br />
J-l<br />
jagiiey nm [Arg] pit or trench filled with water<br />
jais nf jet<br />
jaki nm khal<br />
jalatocle nm [M6c] alluvium<br />
jalde adj deep yellow<br />
jaldo,-da adj deep yellow<br />
jaldre adj deep yellow<br />
jales nmpl [M£x] tailings<br />
jali nm khal<br />
jaldn nm [surv] rod, range pole | ;. de cadeno<br />
chaining pin | j. de mira level rod<br />
jalonar vtr [surv] to run a survey line<br />
jalonero nm [surv] rodman<br />
jamasquita nf jamaskite (obs, hornblende<br />
jacupirangite)<br />
Janitorense nm Janitorian (sub-stage <strong>of</strong> the<br />
Corallian)<br />
janosita nf copiapite<br />
japanita nf penninite<br />
jaquelado nm checkerboard pattern<br />
jardin nm spot which disfigures an emerald<br />
jargon nm jargoon, jargon (pale yellow jem<br />
variety <strong>of</strong> zircon)<br />
Jarkov nm Kharkov<br />
jaspagata nf agate jasper, jaspagate, jaspachate<br />
jaspe nm jasper | veined marble | /. de Siberia<br />
banded brown and green jasper | ;. egipcio<br />
Egyption jasper | ;. florido multicolored jasper<br />
| j. heliotrope bloodstone | _;'. jaspeado mixture<br />
<strong>of</strong> green jasper and agate | ;. negro touchstone<br />
| j. opalo jaspopal | j. porcelana porcelain jasper<br />
| j. sanguineo bloodstone | /. veteado ribbon<br />
jasper | ;'. zonar ribbon jasper<br />
jaspeado,-da adj spotted | mottled, variegated<br />
| marbled, streaked, veined | like jasper,<br />
jaspideous<br />
jaspear vtr to marble, mottle, vein, streak<br />
jasperado,-da adj jasperated<br />
jasperina nf jasperine<br />
jasperita nf jasper<br />
jasperizacidn nf jasperization<br />
jasperoide adj jasperoid | jasper<br />
jasperizar vtr to jasperize<br />
jaspideano,-na adj jaspidean, jaspery<br />
jaspilitico,-ca adj jaspilitic<br />
jaspoide adj jaspoid | nm tachylyte<br />
jaspdn nm a variety <strong>of</strong> marble, stained red and<br />
yellow<br />
jaspdnix nm jasponyx<br />
jaspopal nm jasper opal, jaspopal, opal jasper<br />
jaula nf cage (in a shaft) | j. de extraccion mine
cage<br />
jayet nm jet<br />
jazido nm layer, bed or seam | ore or mineral<br />
deposit<br />
jebe nm [Sp] alum<br />
jefe nm chief, boss | ;'. de brigada [surv, expl]<br />
party chief | ;'. de cuadrilla squad boss | ;'. de<br />
<strong>of</strong>icina <strong>of</strong>fice manager | j. de punta shift boss |<br />
j. de turno shift boss<br />
jejo nm stone, rock<br />
jelinita nf kansasite (a fossil resin)<br />
jelletita nf pale green andradorite<br />
jemal adj a palm in length<br />
jeme nm palm (measure <strong>of</strong> distance)<br />
jenkinsita nf ferroan antigorite<br />
jentschita nf lengenbachite<br />
jenzschita nf chalcedony<br />
jeroglifico,-ca adj hieroglyphic | nm hieroglyph<br />
Jerseyense nm Jerseyian (glacial stage)<br />
jerulfina nf wagnerite altered to apatite<br />
jet nm jet<br />
jewreinowita nf vesuvianite<br />
jezekita nf morinite<br />
jilopalo nm wood opal<br />
jinyunita nf mixture <strong>of</strong> mordenite and<br />
clinoptilolite<br />
jiwaarita nf Ti-melanite<br />
Johannense nm/adj Olenidian<br />
johnita nf green variety <strong>of</strong> turquoise<br />
johnstonita nf vanadinite | galena<br />
johnstontonita nf variety <strong>of</strong> andradite<br />
johnstrupita nf mosandrite<br />
jolita nf iolite<br />
jollyita nf Al-hisingerite<br />
jorfe nm precipice<br />
Jorgense nm/adj [Arg] local age name equivalent<br />
to Danian<br />
jorgyanita nf scoredite<br />
jornada nf a day's work, working day, shift | a<br />
day's journey | expedition | ;'. doble double<br />
shift | j. simple single shift<br />
jornal adj by the day's work | [Col] by the<br />
hour's work | nm day's wage | day's work |<br />
[Col] hourly wage<br />
jornalar vtr to employ by the day<br />
jornalero nm workman, laborer<br />
Josarense nm lower part <strong>of</strong> the Pontian<br />
josefinita nf nickel-iron, ferronickel<br />
josena nf josen, hartite<br />
jossaita nf a mixture <strong>of</strong> crocoite and sphalerite<br />
J-2<br />
jotun-norita nf jotunite (obs, charnockite)<br />
Jovarense nm/adj middle part <strong>of</strong> the middle<br />
Oligocene<br />
jovenadj young | recent | undeformed<br />
Joviano nm part <strong>of</strong> the Quaternary<br />
jovin adj uneroded, little eroded<br />
juagada nf [Col] alluvial gravel lacking sand<br />
and gold<br />
juan blanco nm [Col] placer platinum | mica<br />
jucu nm [Bol] high grader, ore thief<br />
juddita nf Mn-hornblende<br />
juego nm set | suite | ;'. de colores play <strong>of</strong> colors<br />
| j. de diaclasas joint set | ;. de mare the<br />
complete tidal cycle | stretch <strong>of</strong> beach or coast<br />
bounded by the tidal cycle<br />
jugar nm tidal movement <strong>of</strong> the sea (rise and<br />
fall)<br />
jugo de la tierra nm hydrocarbon<br />
jugo lapideo nm parent magma | residual melt<br />
| intersitial glass | cement in conglomerates<br />
julianita nf tennantite<br />
julio nm joule<br />
jumo nm [Col] scarcely visible flake <strong>of</strong> gold<br />
junckerita nf variety <strong>of</strong> siderite<br />
junkerita nf siderite<br />
junta nf joint | junction (<strong>of</strong> a river)<br />
juntarse vpr to coalesce<br />
juntura nf joint | ;'. de estratificacion bedding<br />
plane<br />
junturamiento nm jointing<br />
juquear vtr [Bol] to high grade, steal ore<br />
juqueo nm [Bol] ore theft, high-grading<br />
juquero nm [Bol] ore-thief<br />
Jura nf Jurassic | /. blanco Malm | /. negro Lias |<br />
/. pardo Dogger<br />
Jurasico,-ca adj Jurassic | nm Jurassic | /.<br />
inferior lower Jurassic | /. media middle Jurassic<br />
| /. superior upper Jurassic<br />
jurinita nf brookite<br />
jurupaita nf Mn-xonotlite<br />
jusente adj that rises or falls with an ebb tide |<br />
nm ebb tide<br />
justipreciacion nf appraisal<br />
justipreciador nm appraiser<br />
justipreciar vtr to appraise, rate<br />
justiprecio nm appraised value<br />
Juvarense nm/adj Juvavian<br />
juvenil adj juvenile<br />
juventud nf youth
K<br />
kafehidrocianita nf kafehydrocyanite<br />
kainolitico,-ca adj Cenozoic<br />
k'ajcha n/[Potosi, Bol] member <strong>of</strong> a cuadrillo or<br />
gang <strong>of</strong> weekend indio miners who worked<br />
their employer's mines for their own benefit<br />
from Saturday night to Monday morning and<br />
on feast days<br />
kakirita nf protomylonite<br />
kakoxena nf kakixen<br />
Kalaviense adj lower Algonquin | nm lower<br />
Algonquin<br />
kalicamptonita nf cascadite (obs, sodic minette)<br />
kaligranito nm kaligranite (obs, granite)<br />
kalikeratdfido nm kalikeratophyre (obs,<br />
keratophyre)<br />
kalinefelinita nf kalinephelinite (obs, nephelinte)<br />
kali<strong>of</strong>ilita nf kaliophilite<br />
kalifita nf kaliphite<br />
kalipirocloro nm kalipyrochlore<br />
kalipiroxerita nf pyroxenolite (obs, pyroxenite)<br />
kaliquerat<strong>of</strong>iro nm kalikeratophyre (obs,<br />
keratophyre)<br />
kaliriolita nf kalirhyolite (obs, potash rhyolite or<br />
pantellerite)<br />
kalisienita nf kalisyenite (obs, alkali syenite)<br />
kalitinguaitpdrfido nm kalitinguaite porphyry<br />
(obs, porphyritic phonolite)<br />
kalitraquita nf kalitrachyte (obs, trachyte)<br />
kalkafanita nf amygdaloidal diabase<br />
kalkbostonita nf maenaite (obs, plagioclase<br />
bostonite)<br />
kalkdiabasa nf amygdaloid al diabase<br />
kalkgranito nm calcigranite (obs, granite)<br />
kalkuranita nf uranite<br />
kaluszita nf singenite<br />
kam or kame nm kame<br />
kamarezita nf brochantite<br />
kammgranito nm kammgranite (obs, granite)<br />
kammgramtico,-ca adj kammgranitic (obs,<br />
granitic)<br />
Kansan nm Kansan<br />
kansita nf mackinawite<br />
kantografia nf kantography<br />
kaolin nm kaolin<br />
kaolinico,-ca adj kaolinic<br />
kaolinita nf kaolinite<br />
kaolinitko,-ca adj kaolinitic<br />
kaolinizacidn nf kaolinization<br />
K-l<br />
karbonatberesita nf beresite (obs, altered aplite)<br />
karbonatita nf carbonatite<br />
karbonatitalnoita nf alnoite<br />
karlsteinita nf carlstainite (obs, alkali granite)<br />
karniense adj Carnian<br />
karst nm karst | k. cubierto covered karst | k.<br />
desnudo naked or bare karst | k. elevado relict<br />
karst | k. subterrdneo interstratal or subjacent<br />
karst<br />
karstenita nf rock anhydrite, anhydrock<br />
karstico,-ca adj karstic<br />
karstificacidn nf karstification<br />
kasaita nf kassaite (obs, hauyne monzonite or<br />
syenodiorite porphyry)<br />
Kaskasia nm Kaskasia<br />
kasparite nf cobaltoan pickeringite<br />
kataforita nf kataphorite<br />
kataforit-solvsbergita nf solvsbergite (obs,<br />
trachyte)<br />
katapleitsienita nf augite-nepheline syenite<br />
katatectico,-ca adj katatectic<br />
katavotre nf abyss<br />
katazona nf katazone<br />
katogemco,-ca adj katogenic<br />
katogeno nm katogene<br />
kaukasita nf caucasite (obs, sanidine granite)<br />
kaulaita nf kauaiite (obs, olivine-augite diorite)<br />
Kazan nm Kazanian<br />
kazansquita nf kazanskite (obs, magnetiteplagioclase<br />
d unite)<br />
keelyita nf zinkenite<br />
Keewatino nm Keewatin, Keewatinian<br />
keiviita nf keivyite<br />
kelifitico,-ca adj kelyphytic<br />
kelyfitico,-ca adj kelyphitic<br />
kelifito nm corona<br />
kellerita nf cuprian pentahydrite<br />
kenngotita nf miargyrite<br />
kenyita nm kenyte (obs, olivine phonolitic<br />
trachyte)<br />
kenyta nm kenyte (obs, olivine phonolitic<br />
trachyte)<br />
kerabitumen nm kerogen<br />
kerargirita nf kerargyrite<br />
keratita nf hornfels | compact ground mass in<br />
melaphyres<br />
kerat<strong>of</strong>ido nm keratophyre | k. cuardfero quartz<br />
keratophyre<br />
keratdfiro nm keratophyre | k. cuardfero quartz<br />
keratophyre<br />
kerat<strong>of</strong>irospilita nf spilitized keratophyre
keratospilita nf keratospilite (obs, spilitized<br />
albite diabase)<br />
kerogeno nm kerogen<br />
kerogenita nf oil shale<br />
keros£n nm kerosene<br />
kerosene nm kerosene<br />
kerosina nf kerosene<br />
kersantita nf kersantite | k. aplita aplitic<br />
kersantite | k. augitica augite kersantite | k,<br />
brondtica bronzite kersantite | k. cuarcica<br />
quartz kersantite | k. esferoidal or esferolitica<br />
spheroidal kersantite | k. hornablendica<br />
hornblende kersantite | k. olivinica olivine<br />
kersantite | k. orbicular orbicular kersantite<br />
kersantitpegmatita nf kersantite pegmatite<br />
keuperiano,-na adj Keuper<br />
Keuprico nm Keuper<br />
keweenawiano,-na adj Keweenawan<br />
K-feldespato nm K-feldspar<br />
khajcha nf [Potosi, Bol] member <strong>of</strong> a cuadrillo or<br />
gang <strong>of</strong> weekend indio miners who worked<br />
their employer's mines for their own benefit<br />
from Saturday night to Monday morning and<br />
on feast days<br />
khareo nm [Bol] hand sorting (<strong>of</strong> ore)<br />
khareadora nf ore sorter (usually a woman)<br />
khibinita nf mosandrite (mineral) | chibinite<br />
(rock)<br />
khinganita nf kesterite<br />
khuniita nf iranite<br />
kieselgur nm kieselguhr, kiselgur<br />
kiirunavaarita nf magnetitite<br />
kilaje nm [Arg] weight in kilograms<br />
kilbrickenita nf As-geochronite<br />
kiliarea nf kiliare<br />
kilita nf kylite (obs, olivine theralite)<br />
kilo nm kilogram<br />
kilobara nf kilobar<br />
kilocaloria nf kilocalorie<br />
kilociclo nm kilocycle<br />
kilogramo nm kilogram<br />
kilometraje nm distance in kilometers<br />
kilometrico,-ca adj kilometric<br />
kildmetro nm kilometer<br />
kimmeriano,-na adj Kimmerian<br />
kimmerico,-ca adj Kimmerian<br />
kimmeridgiano,-na adj Kimmeridgian<br />
kimmeridgense adj Kimmeridgian<br />
Kinderhook nm Kinderhookian<br />
K-2<br />
kirunavaarita nf magnetitite, kiirunvaarite<br />
klaprotita nf mixture <strong>of</strong> wittichenite and<br />
emplectite<br />
klausenita nf clausenite (obs, diorite norite,<br />
quartz gabbro) | lamprophyre<br />
kmaita nf celadonite<br />
knoxvillita nf copiapite<br />
Koblenzense nm Coblenzian<br />
kodurita nf kodurite (obs, granulite) | k. biotitica<br />
biotite kodurite | k. cuardfera quartz kodurite |<br />
k. piroxenica pyroxene kodurite<br />
kodoritico,-ca adj koduritic<br />
koelbingita nf kenigmatite<br />
koivinita nf florencite<br />
kokkokonita nf cocconite (coccolith limestone)<br />
kolbeckina nf herzenbergite<br />
kolskita nf mixture <strong>of</strong> lizardite and sepiolite<br />
komatiita nf komatiite<br />
kongadiabasa nf Konga diabase (par quartz<br />
dolerite)<br />
Kongurense nm Kungurian<br />
Konialnikense nm Konialnikian, Pontian?<br />
koppita nf pyrochlore<br />
kornerupina nf kornerupine<br />
korund-anorthosita nf kyschtymite (obs,<br />
corundum anorthosite)<br />
korund-gabro nm corundum hornblend gabbro<br />
korundmagnetitita nf corundum magnetitite<br />
korundnefelindiorita nf dungannonite (obs,<br />
alkali corundum diorite)<br />
korundoligoclaspegmatita nf plumasite (obs)<br />
korundplagioklasita nf kyschtymite (obs,<br />
corundum anorthosite)<br />
kosmocloro nm kosmochlor, ureyite<br />
kramerita nf probertite<br />
kratogeno nm shield<br />
kraurita nf dufrenite<br />
kreuzbergita nf pleystenite<br />
kriptdn nm krypton<br />
kristianita nf cristianite (obs, biotite granite)<br />
kryokonita nf cryoconite<br />
Kungurnm Kungurian<br />
Kunguriense nm Kungurian<br />
kurskita nf carbonate-fluorapatite<br />
kiirunavaarita nf magnetitite, kiirunvaarite<br />
kuselita nf cuselite (obs, biotite-augite<br />
lamprophyre)<br />
kusuita nf wakefieldite-(Ce)
labfl adj unstable | labile | friable<br />
labio nm lip, edge | /. defalla fault limb<br />
labor nf miner working or work | working<br />
place or face | a measure <strong>of</strong> area (177.14 acres)<br />
| /. a cielo overhand working | /. a cielo abierto<br />
open pit working | 1. a traves cross cut | /.<br />
abandonada abandoned working | /. alia [Col]<br />
placer working above water level | /. auxiliar<br />
development work | /. baja [Col] placer<br />
working below water level | /. de buncos<br />
underhand stoping | /. de beneficio mill, milling<br />
| /. de cantera stone quarry, open pit work | /.<br />
de hacienda all workings in a mine not leased |<br />
/. de realce overhand stoping | /. de<br />
reconocimiento exploratory workings | /. de<br />
testeros overhand stoping | /. en rebajo<br />
underhand stoping | /. par lajas slabbing,<br />
slashing | /. preparativas development work<br />
laboreo nm mining, exploitation, working | art<br />
<strong>of</strong> mining | /. a cielo abierto open pit mining | /.<br />
de crestones surface workings | /. de grada<br />
stoping | /. de subniveles sublevel stoping | /. en<br />
avance advancing system | /. en retirada<br />
retreating system | /. minero mining,<br />
exploitation | /. par cuadras panel working | /.<br />
par socavon adit cut mining<br />
labra nf working, cutting, carving, or dressing<br />
<strong>of</strong> stone<br />
labrado,-da adj worked, wrought, cut, carved |<br />
nm cutting, carving<br />
labrar vtr to work a mine | to work metals | to<br />
dress, cut or carve stone | /. enfacetas to facet<br />
lacolito nm laccolith<br />
lacunario,-ria adj lacustrine<br />
lacustre adj lacustrine, lake<br />
ladera nf declivity, slope, side, hillside | highly<br />
inclined flanks <strong>of</strong> a saddle or anticline | flank<br />
ladiniano,-na adj Ladinian<br />
ladiniense adj Ladinian<br />
lago nm lake | /. alcalino alkaline lake | /. de agua<br />
dulce fresh water lake | /. de agua salada salt<br />
lake | /. de circo tarn | /. de crater crater lake | /.<br />
de erosion erosion lake ! /. de erosion glaciar \ I.<br />
defractura tectonic lak i | 1. de glaciar glacier<br />
lake | /. en herradura oxbow lake | /. endicado<br />
barrier lake | /. salado salt lake, saline lake | /.<br />
semilunar oxbow lake<br />
laguena nf decomposition <strong>of</strong> argillaceous schist<br />
L-l<br />
by weathering<br />
laguna nf lagoon | small lake | reservoir used<br />
to store water to supply water-powered stamp<br />
mills | /. coster a coastal lagoon | /. de<br />
decantacion tailings pond<br />
lagunato nm [Cu] pool, pond<br />
lagunero nm person in charge <strong>of</strong> the upkeep <strong>of</strong><br />
lagunas<br />
lagunoso,-sa adj full <strong>of</strong> lagoons<br />
laja nf thin, flat stone | bed, layer or sheet |<br />
stone slab | /. chavera [Cartagena, Sp] highly<br />
decomposed slate<br />
lajeado,-da adj [Mex, Ur] laminated<br />
lajillan/[Vz] shale<br />
lajoso,-sa adj [Ur] laminated<br />
lama nf slime, mud, silt | tailings | ore in the<br />
form <strong>of</strong> dust or fine powder within veins |<br />
[Tipuani, Bol] gravel beds forming false<br />
bedrock to gold placers<br />
lamelaradj laminated<br />
lamelifonne adj lamelliform<br />
lamina nf lamella (pi lamellae) | slab | thin<br />
plate or sheet | scale | /. de pirita scare | /. de<br />
pizarra slab <strong>of</strong> slate, slate<br />
laminacidn nf lamination<br />
laminado,-da adj laminated | tabular<br />
laminilla nf lamella (pi lamellae) | thin sheet |<br />
flake<br />
lamoso,-da adj slimey | [Aguascalientes, Mex]<br />
copper ores in a steatite matrix<br />
lamprdfiro nm lamprophyre<br />
lancanstriano,-na adj Lancastrian<br />
lancastriense nm Lancastrian<br />
lancha nf thin, flat stone | stone slab<br />
lanchar nm quarry yielding lanchas<br />
landeniano,-na adj Landenian<br />
landeniense nm Landenian<br />
lantano nm lanthanum<br />
lapa«/[Pe] footwall<br />
lapiez nm karren<br />
lapili nf lapilli | /. de acrecion accretion lapilli<br />
lapislazuli nf lapis lazuli<br />
lapiz nm graphite, black lead, plumbargo |<br />
black chalk | /. encarnado or rojo red chalk or<br />
ochre<br />
lapizarnm graphite mine<br />
laque nm druse<br />
la sea nf small, thin fragment <strong>of</strong> stone | chip,<br />
spall<br />
lascarufr to spall<br />
lastra nf flat stone, stone slab, flagstone |
[Serrata de Lorca, Sp] bed <strong>of</strong> native sulphur, <strong>of</strong><br />
which there are several: /. de arriba the upper<br />
bed, /. de abajo or defuego middle bed, and /. de<br />
agua the lowermost which was not worked<br />
lastre nm weathered stone <strong>of</strong> poor quality found<br />
at the surface <strong>of</strong> quarries<br />
lastronnm large flagstone<br />
lateritico,-ca adj lateritic<br />
laterizacidn nf laterization<br />
latilla nf lath<br />
latitud nf latitude | breadth, width | total<br />
extent <strong>of</strong> a region, belt, province, district, etc |<br />
a 30° latitud sur 30° south<br />
lattorfiano,-na adj LattorBan<br />
lattorfiense adj Lattorfian<br />
lauegrama nm lauegram<br />
laurencio nm lawrencium<br />
lava nf lava | washing <strong>of</strong> ore | /. cordada pillow<br />
lava | /. de blocjue block lava | /. en alhomada<br />
pillow lava | /. escoriacea aa lava | /. pahoehoe<br />
pahoehoe<br />
lavada nf washing <strong>of</strong> placers or ore<br />
lavadero nm site for washing placers or ore |<br />
[Ch, Pe] placer deposit | act <strong>of</strong> washing placers<br />
or ore<br />
lavado nm washing | /. de surcos \ I. superficial<br />
lavador nm gold pan | washer<br />
lavadora nf gold pan | /. de carbon coal washer<br />
lavadura nf washing <strong>of</strong> placers or ore | nfpl<br />
washings<br />
lavaje nm washing <strong>of</strong> placers or ore<br />
lavar vtr to wash placers or ore<br />
lazada nf bow, knot | en lazada loop<br />
lazo nm bow, knot | en forma de L loop<br />
lazurita nf lapis lazuli, lazurite<br />
lechada nf mixture <strong>of</strong> lime and gypsum or <strong>of</strong><br />
lime and sand | slurry, paste<br />
leche de luna nm calcareous clay<br />
leche de tierra nm magnesia<br />
leche fosil de luna nm mineral agaric<br />
lechecilla nf [Tasco, Mex] a var <strong>of</strong> limestone<br />
lechedor nm [Pe] huantajaite | [Atacama, Ch]<br />
oxidized ore or gossan rich in silver chlorides<br />
lecho nm river bed | thin layer, bed or stratum<br />
| /. de canter a bed <strong>of</strong> stone | /. de creciente flood<br />
plain | /. de rio stream bed | /. de roca bedrock<br />
| /. mayor flood plain<br />
lediano,-na adj Ledian<br />
lediense adj Ledian<br />
legamo nm slime, mud, ooze | loam<br />
legamoso,-sa adj slimey, oozey, loamy<br />
L-2<br />
legitima n/[Real del Monte, Mex] vein having<br />
an east-west trend<br />
legua nf league, a measure <strong>of</strong> distance <strong>of</strong> 5000<br />
footsteps (about 5572 meters) (a day's ride on<br />
horseback is about six leagues)<br />
leguaje nm an advance for travel expenses that<br />
should have but was rarely paid to mitayos by<br />
mine owners when they left their communities<br />
for the mines<br />
lenar nm karren, lapiaz<br />
lengua del glaciar nf glacial tongue<br />
lengiiebuey nm [Antioqua, Col] a trachyte so<br />
named because its texture resembles that <strong>of</strong> an<br />
ox's tongue<br />
lente nm lense | magnifying glass | lenticular<br />
mass <strong>of</strong> rock | /. ocular eyepiece<br />
lenteja nf lenticular mass <strong>of</strong> rock, ore or mineral<br />
lentejon nm lense (<strong>of</strong> sedimentary rock)<br />
lenoso,-sa adj woody, ligneous<br />
lepidoblastico,-ca adj lepidoblastic<br />
leucito nm leucite<br />
leucocratico,-ca adj leucocratic<br />
leucopirita nf leucopyrite<br />
leucozafiro nm leucosapphire<br />
levantada nf orogeny<br />
levantamiento nm elevation | uplift | survey |<br />
surveying | creep (soil) | /. aer<strong>of</strong>otogrametrico<br />
aerial survey | /. stsmico siesmic survey<br />
levantar vtr to survey | to uplift, elevate<br />
levee nf levee | /. natural natural levee<br />
levigacidn nf levigation<br />
levogiro,-ra adj sinistral<br />
ley nf law | grade <strong>of</strong> ore | legal standard <strong>of</strong><br />
quality or fineness | statistical distribution<br />
function | /. beta beta distribution | /. binomial<br />
binomial distribution | /. binomial negativa<br />
negative binomial distribution | /. de Boyle<br />
Boyle's law | /. de Charles Charles's law | /. de F<br />
F distribution | /. de Henry Henry's law | /. de<br />
minas mining law | /. de metal grade | /. de<br />
Pareto Pareto distribution | /. de Poisson<br />
Poisson distribution | /. de student student t-<br />
distribution | /. de Weibull Weibull distribution<br />
| /. discreta uniforme uniform distribution | /.<br />
exponential exponential distribution | /. gamma<br />
gamma distribution | /. geometrica geometric<br />
distribution | /. hipergeometrica hypergeometric<br />
distribution | /. ji cuadrado chi-squared<br />
distribution j /. lognormal lognormal<br />
distribution | /. media average grade | /.<br />
mineral mining law | /. mulitinomial
multinomial distribution | /. normal normal<br />
distribution | /. rectangular Rectangular<br />
distribution | /. superior a grade greater than |<br />
/. t t-distribution | /. unifomre uniform<br />
distribution | con ley de <strong>of</strong> a grade <strong>of</strong> | de baja<br />
(alta) ley <strong>of</strong> low (high) grade<br />
leyenda nf legend (to a map)<br />
Iherzolita nf Iherzolite<br />
lias nm Lias<br />
lia"sico,-ca adj Liassic, Lias | nm Liassic<br />
libra nf pound, a measure <strong>of</strong> weight | /. esterlina<br />
pound sterling<br />
libreadj free<br />
libreta nf notebook | /. de campo field book<br />
licuacidn nf liquification<br />
licuefaccidn nf liquification<br />
liquifacer vtr to liquify<br />
lidita nf lyd ite, touchstone<br />
lienza nf measuring tape<br />
lievrita nf ilvaite<br />
liga nf alloy | alloy <strong>of</strong> gold and silver used in<br />
coinage | [Mex] smelting ore, or ore used as a<br />
flux in smelting | [Potosi, Bol] galena | /. de<br />
metal alloy<br />
ligacidn nf bond<br />
ligar vtr to alloy (metals)<br />
ligero,-ra adj light<br />
lignftico,-ca adj lignitic<br />
lignito nm lignite or brown coal | /. duro \ I,<br />
lenoso lignite proper | /. xiloide xyloid lignite<br />
limadura n/[Mex] refined silver or silver<br />
amalgam produced by the patio process <strong>of</strong><br />
amalgamation<br />
limbo nm limb (<strong>of</strong> a fold)<br />
limite nm boundary | limit | /. conservador de<br />
placas transform plate boundary | /. de<br />
confianza confidence limit | /. de contraccion<br />
shrinkage limit | /. de nieve snow line | /. de<br />
placa plate boundary | /. de placas convergentes<br />
converging plate boundary | /. de placas<br />
divergentes diverging plate boundaries<br />
limitr<strong>of</strong>e adj bordering<br />
limnico,-ca adj lacustrine, limnic<br />
limnologia nf limnology<br />
limo nm silt, mud | /. de derrubios boulder clay |<br />
/. defaldeo<br />
lomolito nm siltstone<br />
limonita nf limonite<br />
limomtico,-ca adj limonitic<br />
limonitizado,-da adj limonitic<br />
limoso,-sa adj muddy, silty<br />
L-3<br />
limpia nf low-grade ore or waste<br />
limpiar vtr to clean up, as for a mill, dredge, etc<br />
limpio nm cobbed or sorted ore<br />
linde nm boundary, limit<br />
lindero nm boundary, especially <strong>of</strong> a mining<br />
claim<br />
linea nf line | twelth part <strong>of</strong> a pulgada or inch |<br />
/. ach'nica aclinic line, magnetic equator | /. de<br />
costa coastline, strandline | /. de crecimiento<br />
growth line | /. de charnela hinge line | /. de<br />
fractura fracture line | /. de literal shoreline | /.<br />
de nieves perpetuas snow line | /. de tierra<br />
ground line | /. geodesica geodesic line | /.<br />
isodindmica isodynamic line | /. isogonica<br />
isogonic line | /. transversal traverse<br />
lineacidn nf lineation<br />
lineamiento nm lineament<br />
lingote nm ingot | /. de hierro pig iron | /. de<br />
plomo pig <strong>of</strong> lead<br />
liparita nf rhyolite<br />
lipis nm copper sulfate<br />
lipta nf [Bol] grey silver ores which accompany<br />
tin ore<br />
liquado nm liquid | /. newtoniano Newtonian<br />
liquid<br />
liso,-sa adj even | nm an extensive flat face <strong>of</strong> a<br />
rock | slickenside | [Col] fault<br />
lista nf stripe, band<br />
listado,-da adj striped | in thin layers,<br />
laminated<br />
listones nmpl riffles<br />
litarge nm litharge | /. nativo lead ocher<br />
litargirio nm litharge<br />
litificacidn nf lithification<br />
litico,-ca adj lithic<br />
litio nm lithium<br />
litoclasa nf lithoclase<br />
litoestratigrafico,-ca adj lithostratigraphic<br />
lit<strong>of</strong>acies nfpl lith<strong>of</strong>acies<br />
litdfilo,-la adj lithophile<br />
lit<strong>of</strong>isuras nfpl lithophysae<br />
litogenesis nf lithogenesis<br />
litologia nf lithology<br />
litoldgico,-ca adj lithological<br />
litomargo nm lithomarge, kaolin<br />
literal adj coastal, littoral | nm shore | /. entre<br />
mareas foreshore | /. submarino <strong>of</strong>fshore<br />
litosfera nm lithosphere<br />
litosiderita nf lithosiderite<br />
litostatico,-ca adj lithostatic<br />
litraje nm [Arg] volume in liters
litro nm liter<br />
lixivacidn nf leaching, lixivation | /. amoniacal<br />
ammonia leaching<br />
lizote nm [Sinaloa, Me"x] blue speckled quartz<br />
rich in silver<br />
local nm site | /. del ingenio mill site<br />
localidad nf locality | /. tipo type locality<br />
lodazal nm marsh/ bog<br />
lodo nm mud/ ooze/ sludge | /. calcareo<br />
calcareous ooze | /. de slliceo siliceous ooze | /.<br />
de diatomeas diatomaceous ooze | I. de<br />
rodiolarios radolarian ooze | /. mineral slime | /.<br />
rojo red mud<br />
lodolita nf mudstone<br />
lodoso,-sa adj muddy<br />
loes or loess nm loess<br />
logaritmico/-ca adj logarithmic<br />
logaritmo nm logarithm<br />
loma nf ridge/ rise/ hill/ hillock | /. de<br />
acumulacion accretionary ridge<br />
lomada nf [ Arg] hill/ ridge<br />
lomerio nm [Me"x] a range <strong>of</strong> hills<br />
lomo nm ridge | /. eolico windrow ridge<br />
loncha nf flagstone<br />
longana nf [Guanajuato/ Mex] cylinders <strong>of</strong> clay<br />
with embedded rich ore, or cylindrical pieces<br />
<strong>of</strong> ore concealed in the anus as a means <strong>of</strong><br />
stealing ore<br />
longitud nf longitude | length | departure/ ie<br />
easting or westing<br />
lopolito nm lopolith<br />
losa nf flat stone/ stone slab/ flagstone |<br />
[Coquimbo, Ch] shell-bearing conglomerate<br />
losero nm quarry for losa or flagstone |<br />
[Guanajuato/ Mex] sandstone quarry<br />
lotaringiano/-na adj Lotharingian<br />
lotaringiense nm Lotharingian<br />
loza nf [Pe] bedrock to a placer<br />
ludiano,-na adj Ludian<br />
ludiense adj Ludian<br />
ludloviano,-na adj Ludlovian<br />
ludloviense adj Ludlovian<br />
lumbre nm flint | fires tone<br />
lumbrera nf shaft<br />
luminescente adj luminescent<br />
luminiscencia nf luminescence | /. catodica<br />
cathodoluminescence<br />
luminoso,-sa adj luminous<br />
lupa nf magnifying glass/ lens | hand lens<br />
lurte nm landslide<br />
lusitaniano,-na adj Lusitanian<br />
lusitaniense adj Lusitanian<br />
lustre or lustro nm luster<br />
lustroso,-sa adj shiny/ glossy/ lustrous<br />
luteciano,-na adj Lutetian<br />
luteciense adj Lutetian<br />
lutecio nm lutetium<br />
lutita nf shale | /. petroUfera oil shale<br />
lutitico/-ca adj shaly<br />
luz nf light | /. ambiente available light | /.<br />
natural natural or ordinary light | /. polarizada<br />
polarized light<br />
L-4
LL<br />
llabana nf smooth or polished flat slab <strong>of</strong> rock<br />
llacorella nf [Valencia, Sp] a white or bluish<br />
marl <strong>of</strong> Miocene age<br />
llama nf swamp, marsh | flame | pack animal<br />
used in Andean countries to haul ore,<br />
concentrates, supplies, etc. | //. de oxidation<br />
oxidizing flame | //. de reduction reducing<br />
flame<br />
llamado/-da adj known as, called, so-called (not<br />
always translated, e.g. el llamado Pluton<br />
Disputada 'the Disputada Pluton 1)<br />
llamargo nm swamp, marsh<br />
llamazar nm swamp, marsh<br />
llambria nf cliff<br />
llamenga nf [Asturia, Sp] mud<br />
llamo nm [Ch] fine ore | coal dust |<br />
[Chuquicamata, Ch] ground low grade copper<br />
ore | [Pe] earthy, reddish oxidized silver ore<br />
llampera nf [Bol] talus, landslide | ore found in<br />
talus deposits | [Ch] soil or ground which<br />
contains easily worked ore<br />
llampero nm [Chuquicamata, Ch] Stockwork <strong>of</strong><br />
atacamite-bearing veinlets in porphyry copper<br />
ore<br />
llampo nm [Bol, Ch] finely broken or otherwise<br />
easily exploitable ore<br />
llampu nm [Bol] pure sublimate <strong>of</strong> sulfer<br />
liana nf plain<br />
llanada nf plain (<strong>of</strong> great extent but fully in<br />
view)<br />
llanadora nf [Arg] grader<br />
llanca «/[Ch] any blue-green copper silicate<br />
mineral used by the Aurucanian Indians <strong>of</strong><br />
Chile as jewelry<br />
llandeiliano,-na adj Llandeilian<br />
llandeilense adj Llandeilian | nm Llandeilian<br />
Llandeilo nm Llandeilian<br />
llandilo,-la adj Llandeilian<br />
llandoveriano,-na adj Llandoverian<br />
llandoveriense adj Llandoverian | nm<br />
Llandoverian<br />
llaneza nf plain<br />
llanita nf llanite (obs, rhyolite)<br />
llano,-na adj even, flat, smooth | level | nm<br />
plain | flatland | //. aluvial alluvial plain | //.<br />
aluvio-glaciar outwash plain | //. arenoso sandy<br />
plain | //. costero coastal plain | //. de inundation<br />
flood plain<br />
LL-1<br />
| //. de piamonte piedmont plain<br />
llanura nf tropical plain (<strong>of</strong> very great extent) |<br />
//. aluvial alluvial plain | //. aluvio-glatiar<br />
outwash plain | //. costanera coastal plain | //.<br />
costera coastal plain | //. de agradation<br />
aggradation plain | //. de inundation flood plain<br />
| //. de piamonte piedmont plain | //. de relleno<br />
fluviogladar overwash plain | //. del rto valley<br />
floor, bottom land | //. glatiarica kettle plain |<br />
//. salina alkaline or salt flat | //. troncal<br />
peneplain<br />
llanvirniense adj Llanvirnian | nm Llanvirnian<br />
llapa nf mercury used to amalgamate silver<br />
llapar vtr to add mercury to produce silver<br />
amalgram<br />
llapana nf [Pe] debris flow occaisioned by flash<br />
flooding <strong>of</strong> a normally dry quebrada<br />
llauca «/[Pe] a smooth, black clay with greasy<br />
lustre found in veins<br />
llaucana nf [Ch] miner's pry bar or pick axe<br />
llaucanero nm [Ch] miner who breaks up large<br />
fragments <strong>of</strong> ore with a llaucana<br />
llaucar vtr [Ch] to use a llaucana<br />
llauckana nf [Bol] pointed metal bar used to bar<br />
down the ro<strong>of</strong> and walls <strong>of</strong> a mine<br />
Have nf section <strong>of</strong> ore or wall rock in the form <strong>of</strong><br />
an arc which is left in place to support the ro<strong>of</strong><br />
<strong>of</strong> a mine | [Sp] crib<br />
llegada nf [seis] arrival | //. sismica cable break<br />
llegar a planes vtr to bottom (mine workings)<br />
lleira nf deposit <strong>of</strong> pebbles and coarse gravel<br />
llena nf alluvium | flood, overflow <strong>of</strong> a river<br />
llenado nm filling<br />
llenamiento nm filling <strong>of</strong> veins, etc.<br />
llenante nf flood tide<br />
llenar vtr to flood, overflow | to fill | nm rise<br />
or fall <strong>of</strong> the sea<br />
lleno,-na adj flooded | high (tides)<br />
Hera nf quarry | stony or rocky ground | sandy<br />
ground<br />
Heron nm ground covered with large boulders<br />
llevar vtr to carry, transport | to bear, have,<br />
contain | //. en suspension to carry in<br />
suspension (rivers) | //. inclusiones de to contain<br />
inclusions <strong>of</strong> | //. una poligonal [surv] to run a<br />
traverse<br />
1 Helena n/[Bol] franckeite<br />
llimpe nm [Mex] cinnabar<br />
llimpi nm [Bol] finely laminated ores with the<br />
appearence <strong>of</strong> mica | [Pe] ores <strong>of</strong> red color,<br />
generally cinnabar
llinqui w/[Sandia, Pe] clayey, sterile beds within lluvia nf rain | //. de lodo mud flow | ll.fosil rain<br />
auriferous glacial deposits print<br />
llipita nf [Bol] brown, ashy silver ore lluvial adj pluvial<br />
llosa n/[Galicia, Sp] flat stone or slab lluvioso,-sa adj rainy<br />
lluscka nf [Bol] vein selvage, salband |<br />
slickenside<br />
LL-2
M<br />
maarnm maar<br />
maceton nm [Mex] stone sledge<br />
macino nm a u«r <strong>of</strong> sandstone with less quartz<br />
and more feldspar than molasa<br />
macizo,-za adj compact, solid, hard | nm massif<br />
| nm massiveness, bulk | massif | shield,<br />
basement | virgin, unmined ground | ore<br />
blocked out but not yet mined | m. cristalino<br />
crystalline basement | m. intrusive stock | m.<br />
laurentico Canadian shield | m. mineralizado<br />
orebody | m. tectonico horst<br />
macla nf twinning | twin, made | twinned<br />
crystal | m. de la albita albite twin law | m.<br />
polisintetica polysynthetic twin<br />
madado,-da adj twinned<br />
maco nm [Cartagena, Sp] ancient mine tailings<br />
macroclastico,-ca adj macroclastic<br />
macrocristalino,-na adj coarsely crystalline<br />
macr<strong>of</strong>dsil nm macr<strong>of</strong>ossil<br />
mactosismico,-ca adj macroseismic<br />
macrosismo nm macroseism<br />
machacamiento nm crushing<br />
machacar vtr to crush, break, buck, spall or<br />
stamp ore | to grind<br />
machado nm [Pe] ore containing visible native<br />
silver or gold<br />
machador,-dora adj crushing, grinding | nf<br />
crusher, grinding machine<br />
machaqueo nm crushing | [Sp] crushed stone<br />
macharitfr to spall ore | to hammer<br />
machays nm [Ec, Pe] sulfur lined cavities in<br />
volcanic rock<br />
macho nm dike | [Col] barren or unproductive<br />
vein<br />
machonga nf [Col] pyrite<br />
machucar vtr to crush, break, buck, spall or<br />
stamp ore<br />
madera nf wood | m. silidficada agatized wood<br />
madre nf river bed | mineralizing fluid | m. de<br />
sal [Ch] crystalline soda sulfate | m. del ore<br />
[Col] pebbles or cobbles <strong>of</strong> hematitic iron ore<br />
madurez nf maturity<br />
maduro,-ra adj mature<br />
maestrichtiano,-na adj Maestrichtian<br />
Maestrichtiense nm Maestrichtian<br />
mafico,-ca adj mafic<br />
magistral nm flux used for smelting ores |<br />
roasted pyrites or crude copper sulfate used as<br />
M-l<br />
a reagent in the patio process <strong>of</strong> amalgamating<br />
silver ores<br />
magma nm magma<br />
magmatico,-ca adj magmatic<br />
magnesiano,-na adj magnesian<br />
magnesico,-ca adj magnesic<br />
magnesifero,-ra adj magnesiferous<br />
magnesio nm magnesium<br />
magnetico,-ca adj magnetic<br />
magnetismo nm magnetism | m. fosil<br />
paleomagnetism<br />
magnetizable adj magnetizable<br />
magnetizacidn nf magnetization<br />
magnetar vtr to magnetize<br />
magneto nm magnet<br />
magnetometro nm magnetometer<br />
magnltud nf magnitude (<strong>of</strong> an earthquake)<br />
magnometria nf magnetic exploration<br />
magro,ra adj lean<br />
mainel nm mullion<br />
maja nf pestle<br />
majadero nm pestle<br />
majamiento nm crushing, grinding, pounding<br />
majar vtr to crush, pound, grind, break<br />
mal de choco nm silicosis<br />
malaquita nf malachite | m. azul azurite | m.<br />
verde malachite<br />
maleabilidad nf maleability<br />
maleableadj maleable<br />
malico adjm malic<br />
malpais nf badlands<br />
malquita nf malchite (obs, lamprophyre)<br />
malta nf asphalt<br />
malla nf mesh, screen | network | m. ancha<br />
coarse mesh | m. angosta fine mesh<br />
mana nf source, spring<br />
manatial adj spring | nm spring, source | m.<br />
ariesiano artesian spring | m. ascendente artesian<br />
spring | m. caliente hot spring | m. de<br />
desbordamiento contact spring | m. de estrato<br />
hillside spring | m. defalla fissure spring | m.<br />
defisura fissure spring | m. de grieta fissure<br />
spring | m. de hondonada depression spring |<br />
m. de ladera gravity or contact spring | m. de<br />
voile valley spring | m. descendente depression<br />
spring | m. rebosante gravity spring | m.<br />
resurgente contact spring | m. surtidor artesian<br />
spring<br />
mancomunidad nf joint responsibility assumed<br />
by an association <strong>of</strong> miners (gremio de mineros)<br />
for the repayment <strong>of</strong> member's debts to a bank
| pooling <strong>of</strong> properties to obtain an exploration<br />
permit<br />
mancha nf stain or spot <strong>of</strong> ore | flaw in a crystal<br />
| m. de metal spot <strong>of</strong> ore<br />
manchado,-da adj spotted | stained<br />
mandon ntn mine foreman<br />
manganato nm manganate<br />
manganesa nf pyrolusite, manganese peroxide<br />
manganesia nf pyrolusite<br />
manganeso nm manganese | manganese ore |<br />
m. gris manganite | m. negro pyrolusite<br />
mang£nico,-ca adj manganic<br />
manganoso,-sa adj manganous<br />
manifestation nf occurrence, showing (<strong>of</strong> ore<br />
etc.)<br />
manta nf bedded vein or deposit | blanket<br />
deposit, "manto" | v de manta [Col] horizontal<br />
vein<br />
manteado,-da adj flat, blanket-like<br />
mantenimiento de presidn nm pressure<br />
maintenance<br />
manteo nm bedding | [Bol] cover rock | [Bol,<br />
Ch] dip<br />
mantilla n/[Tex] pocket or bunch <strong>of</strong> ore<br />
mantisa nf mantissa<br />
manto nm bed, layer, stratum | nappe |<br />
stratified or stratbound mineral deposit |<br />
bedded or blanket vein | lenticular deposit or<br />
pocket | flat or horizontal vein | mantle |<br />
[Atacama, Ch] a thick breccia zone |<br />
[Maravatio, Mex] gold-bearing gossan | m.<br />
broceador [Atacama, Ch] unmineralized bed |<br />
m. de azul [Cartagena, Sp] bed containing azul,<br />
disseminated galena and pyrite | m. de<br />
corrimento nappe | m. freatico water-bearing<br />
bed | m. hidraulico water-bearing bed | m.<br />
negro augite porphyry | m. pintador [Atacama,<br />
Ch] mineralized bed | m. sobreescurrido<br />
overthrust<br />
manzana nf [Arg] a land measure (about 2.5<br />
acres) | [CAm] a land measure (about 1.75<br />
acres)<br />
mapa nm map | m. administrative plat | m.<br />
basico base map | m. de base base map | m. de<br />
superficie surface map | m. estructural structure<br />
contour map | m. geologico geologic map | m.<br />
topografico topographic map<br />
mapamiento,-ta adj mapping<br />
mapoteca nf map archive<br />
mapula nf [Popayan, Col] a precious stone<br />
maquila nf [Bol] smelting charges, smelting toll<br />
M-2<br />
maquina diamantina n/[Bol] diamond drill<br />
mar nm ocean, sea | m. abisal abyssal sea | m.<br />
adentro <strong>of</strong>fshore | m, epicontinental epeiric sea<br />
marca nf framework | district or province |<br />
symbol stamped on bullion to indicate that<br />
taxes or duties have been paid | m. de arrastre<br />
scour mark | m. de escurrimiento rill mark | m.<br />
de oleaje ripplemark | m. de remolino eddy mark<br />
| m. lunada gouge mark<br />
marco nm a weight <strong>of</strong> 8 onzas \ m. de oro weight<br />
<strong>of</strong> 50 castellanoSf 400 tomines or 4800 granos \ m.<br />
de plata weight <strong>of</strong> 8 onzas, 64 ochavas, 128<br />
adarmes, 384 tomines or 4608 granos<br />
marcha nf \ m. aleatoria random walk<br />
marea nf tide | m. alta high tide | m. baja low<br />
tide | m. gravimetrica tidal gravity | m, lunar<br />
lunar tide | m. muerta \ m. roja red tide | m.<br />
viva spring tide<br />
marecanita nf obsidian<br />
maremotar,-triz adj tidal<br />
marejada nf cross-bedding<br />
marengo adj/nm dark grey<br />
marga nf marl | loam | marlstone | [Titiribi,<br />
Col] spathic iron | m. limica bog lime<br />
margen nm margin, fringe, edge, border | river<br />
bank | m. continental continental margin<br />
margoso,-sa adj marly, loamy<br />
marguero nm marl pit<br />
marino,-na adj marine<br />
marisma nf salt lake<br />
marismeno,-na adj marsh<br />
marjal nm marsh, bog<br />
mannaja nf [Mex] pyrite | [Col] pyrite or<br />
marcasite<br />
mannita nf pothole | m. de gigante pothole | m.<br />
glacial kettle<br />
manndl nf marble | m. brecha brecciated marble<br />
| m. brocatel spotted or veined marble | m. de<br />
puebla [Teocalli, Puebla, M£x] onyx marble | m.<br />
estatuario or m. de estatuas statuary marble | m.<br />
lumacjuela marble rich in shells | m. mexicano<br />
lime alabaster | m. pintado spotted marble | m.<br />
rayado streaked marble | m. serpentine<br />
serpentine marble<br />
marmolete nm [Vz] a var limestone<br />
marmor nm marble | [Almaden, Sp] melaphyre<br />
marna nf [Arg] marl<br />
marquesita nf marcasite<br />
masa nf mass <strong>of</strong> metal or ore | irregular deposit<br />
| sedimentary deposit | m. blanda s<strong>of</strong>t, semi-<br />
consolidated sediment such as clay or coal | m.
del criadero vein filling | m. dura quartzose<br />
consolidated sediment | m. echada irregular<br />
deposit more or less stratiform | m. filonia ore<br />
shoot | m. firme quartzose consolidated<br />
sediment | m. floja s<strong>of</strong>t sediment such as sand<br />
or peat | m. fundida melt | m. levantada<br />
irregular deposit discordant with bedding | m.<br />
movizada s<strong>of</strong>t sediment | m. muy duro or muy<br />
firme very hard rocks such as chert, granite,<br />
gneiss, etc. | m. cjuebrizada consolidated, clayey<br />
sediments | m. suelta s<strong>of</strong>t, unconsolidated<br />
sediment<br />
masicote nm masicot<br />
masivo,-va adj massive<br />
matan/[met] matte | matas de oro [Col] bunches<br />
<strong>of</strong> gold ore<br />
matar un pozo vtr to kill a well<br />
matatena nf [Mex] pebble, cobble<br />
mate adj unpolished | slaked<br />
matera n/[Col] mine in which gold is found in<br />
bunches or matas de oro<br />
materia nf material | matter | overburden | m.<br />
bituminosa kerabitumin | m. esteril barren<br />
material<br />
material nm material | m. en bruto raw material<br />
| m. esteril overburden<br />
matloquita nf matlockite<br />
matriz nf matrix, gangue | m. de las variancas-<br />
covariancas variance-co variance matrix<br />
matutina nf morning vein<br />
maximo nm high, upper part <strong>of</strong> a structure or<br />
anomaly | m. magnetico magnetic high<br />
maxvelio nm Maxwell<br />
mazamorra nf [Col] imperfect and accidental<br />
working<br />
mazomorrear vtr [Col] to wash gold<br />
mazut nm fuel oil<br />
meandro nm meander | m. abandonado<br />
abandoned meander | m. devalle valley<br />
meander | m. libre free meander<br />
medano nm sand dune | sand bar | m. fijado<br />
anchored dune | m. lateral shifting dune \ m.<br />
ligado attached dune | m. ondulado stable sand<br />
hill | m. vivo active dune<br />
media nf half | mean | m. aritmetica arithmetic<br />
mean | m. armonica harmonic mean | m. barreta<br />
[Bol, Pe] an irregular inclined shaft | m. cana \<br />
m. cuadratica cuadratic mean | m. geometrica<br />
geometric mean | m. mavil moving average |<br />
m. pepena [Mex] medium quality ore | m. vida<br />
half-life<br />
M-3<br />
mediana nf median<br />
medidornm meter | m. depHpH meter<br />
medio nm middle | mean<br />
medioambiente nm environment<br />
medir vtr to measure<br />
megafdsil nm macr<strong>of</strong>ossil, megafossil<br />
megascdpico,-ca adj megascopic<br />
melaconisa nf tenorite<br />
melafido nm melaphyre (obs, basalt)<br />
mela*firo nm melaphyre<br />
melanocratico,-ca adj melanocratic<br />
melita nf mellite<br />
membrana nf membrane<br />
memoria nf report, record | [Me"x] payroll (at a<br />
mine)<br />
mena nm vein <strong>of</strong> ore | ore in general | m. bruto<br />
or crudo raw ore | m. de los pantanos bog iron<br />
ore | m. grueso ore in large lumps | m. recto<br />
massive ore<br />
mencidn nf record<br />
mensura nf survey | m. con brujula Brunton<br />
Brunton survey | m. con estadia stadia survey<br />
mensura do,-da adj surveyed<br />
mensurarufr to survey<br />
mercurico,-ca adj mercuric<br />
mercuric nm mercury | mercury ore | m.<br />
argental argental mercury | m. argenteo argental<br />
mercury | m. corneo or dulce calomel | m.<br />
hepatico liver ore, hepatic cinnabar | m. nativo<br />
native mercury<br />
mercurioso adjm mercurous<br />
meridiano nm meridian<br />
merma nf waste, loss in processing<br />
meroedrico,-ca adj merohedral<br />
meroxeno nm meroxene<br />
mesa nf mesa, table mountain | principal facet<br />
<strong>of</strong> a precious stone | [Chanarcillo, Ch] smooth<br />
face <strong>of</strong> sterile limestone along the footwall <strong>of</strong><br />
mineralized limestone | m. de concentration<br />
concentrating table | m. de glaciares glacial table<br />
| m. para lamas slime table<br />
meseta nf plateau | m. basdltica basalt plateau |<br />
m. continental continental plateau<br />
mesosfera nf mesosphere<br />
mesoroca nf mesorock<br />
mesotipo nm mesotype<br />
mesozoico,-ca adj Mesozoic | nm Mesozoic<br />
mesozona nf mesozone<br />
metal nm metal | alloy | ore | m. acopolado [San<br />
Alto, Me"x] fine yellow cassiterite obtained by<br />
washing tierras \ [Sultepec, Me"x] ore
containing 50 to 60 ounce per ton silver | m.<br />
amarillo calaverite | m. antimonioso [Huitzuco,<br />
M£x] livingstonite | m. azul galena | m. azul de<br />
plata silver-bearing galena | [Almade"n, Sp] rich<br />
mercury ore | m. azulado selbite | m. barreteado<br />
ore freshly cut from a working face and yet to<br />
be sorted and crushed | m. blanco cerargyrite |<br />
m. calichoso [Me"x] feldspathic ore | m. calido<br />
[Ch] silver ore suitable for amalgamation by<br />
the tina process | m. caracal [M£x] spiraly wire<br />
silver | m. cenizo silver chloride | m. colgado<br />
[Ch] ore-in-sight, ore reserves | m. comun third<br />
class or ordinary ore | m. corrida placer ore |<br />
m. de acarreo secondary ore | m. de ayuda flux |<br />
m. de azogue ore amenable to amalgamation<br />
with mercury | m. de cazo [M£x] silver chloride<br />
ore | m. de cebo [Me"x] very rich, direct<br />
reducing silver ore | m. de crudo [Pe] oxidized<br />
ore | m. de color [Cerro de Pasco, Pe] oxidized<br />
copper ore | m. de correa [San Luis Potosi, Mex]<br />
ore <strong>of</strong> nearly pure cassiterite | m. defuego<br />
smelting ore | m. defundicion smelting ore | m.<br />
de labores smalls from mine workings | m. de pie<br />
[Mex] ore amenable to benificiation by the patio<br />
process <strong>of</strong> amalgamation | m. de pinta silver-<br />
bearing ore | m. de primera (close) first-class ore<br />
| m. de (\uema [Pe] sulphide ore | m. de segunda<br />
(close) second class ore | m. de tonel pyritic ore<br />
with little silver | m. despoblado [Me"x] ore with<br />
much gangue, low-grade ore | m. en barra<br />
bullion | m. en bruto ore | m. en piedra crude,<br />
uncrushed ore | m. flor surface ore | m. gabarro<br />
large, coarse ore | first-class ore | large piece<br />
<strong>of</strong> slag | m. grafico sylvanite | m. granza smalls<br />
| m. hierroso [Peras, M£x] masses <strong>of</strong> iron ore in<br />
cubical fragments | m. hecho selected ore, prill<br />
| m. hojoso nagyagite | m. humiento<br />
[Guadalcazar, Mex] complex silver ore | m.<br />
jugoso [Mex] lead ore | m. machacado native<br />
gold and silver leaf | m. mogino [Guadalcazar,<br />
M£x] mixture <strong>of</strong> argentiferous galena, argentite<br />
and silver telluride | m. mosqueado [Taviches,<br />
Mex] pyrargyrite disseminated in quartz<br />
matrix | m. nativo native metal | m. negro<br />
sphalerite [Cerro de Pasco, Pe] sulfuretted<br />
copper ore | m. negro argentifero tetrahedrite |<br />
m. noble free-milling ore | m. ordinario low-<br />
grade ore | m. pastoso argentiferous galena |<br />
[M^x] bournonite | m. pepena rich ore | m.<br />
plateado [Pe] ore <strong>of</strong> copper assaying about 60%<br />
copper | m. plomoso lead ore | m. plomoso<br />
reluciente silver-bearing lead ore | m. polvorilla<br />
M-4<br />
argentite | m. regular average grade ore | m.<br />
verde embolite | [Mex] silver ore with copper<br />
carbonates, oxides and sulfides | m. virgen<br />
native metal<br />
metalada «/[Mex] a discovery <strong>of</strong> ore in a<br />
previously unproductive working<br />
metalico,-ca adj metallic<br />
metalifero,-ra adj metalliferous<br />
metalizacion nf metallization<br />
metaloge'nesis nf metalligenesis<br />
metalogenetico,-ca adj metallogenic<br />
metaloide nm metaloide<br />
metalurgia nf metallurgy<br />
metalurgico,-ca adj metallurgical | nm<br />
metallurgist<br />
metamictico,-ca adj metamict<br />
metamorfico,-ca adj metamorphic<br />
metamorflsmo nm metamorphism | m. caustico<br />
regional metamorphism | m. de cargo y descarga<br />
burial metamorphism | m. de contacto contact<br />
metamorphism | m. de dislocacion dynamic<br />
metamorphism | m. de presion burial<br />
metamorphism | m. dinamico dynamic<br />
metamorphism | m. general regional<br />
metamorphism | m. geotermico thermal<br />
metamorphism j m. regional regional<br />
metamorphism<br />
metamorfosear vtr to metamorphose<br />
metano nm methane<br />
metasedimento nm metasediment<br />
metasomatico,-ca adj metasomatic<br />
metasomatismo nm metasomitism<br />
metasomatosis nf metasomatism<br />
metavulcanita nf metavolcanic<br />
meteorite nm meteorite<br />
meteorizacidn nf weathering | m. diferencial<br />
differential weathering | m. fisica mechanical<br />
weathering | m. mecanica mechanical<br />
weathering | m. (juimica chemical weathering<br />
meteorizado,-da adj weathered<br />
meteorizar vtr to weather<br />
metodo nm method, process | m. de encasdillado<br />
square setting | m. de los momentos method <strong>of</strong><br />
moments | m. de monte carlo monte carlo<br />
method<br />
meteoro nm meteor<br />
metro nm meter | m. cuadrado cubic meter | m.<br />
cubico cubic meter<br />
mezcla nf mixture, admixture, blend | mixing |<br />
melange<br />
mezclable adj miscible
mezclar vtr/pr to mix, admix<br />
mezcuitlatl nm opal<br />
miargirita nf miargyrite<br />
miarolitico,-ca adj miarolitic<br />
miascita nf miaskite (obs, nepheline syenite)<br />
mica nf mica | miner's term for small crystals <strong>of</strong><br />
pyrite | pyrrhotite | [Col] lead molybdate | m.<br />
blanca muscovite | m. caliza margarite | m. de<br />
litio lepidolite | m. dilatada expanded mica | m.<br />
ferrolttica zinnwaldite | m. negra biotite | m.<br />
parda phlogopite | m. potasica muscovite<br />
mica'ceo/-cea adj micaceous<br />
micacita nf mica schist<br />
mica-pizarra nf mica schist<br />
micasquisto nm mica schist<br />
micela nf micelle<br />
micra nf micron<br />
microbrecha nf microbreccia<br />
microcl£stico,-ca adj microclastic<br />
microclina nf microcline<br />
microclino nm microcline<br />
microcristalino adj microcrystalline<br />
microelemento nm trace element<br />
microestructura nf micros tincture<br />
micro-fildn nm veinlet, microvein<br />
micromilimetro nm micron<br />
mkrdnnm micron<br />
microperfil nf microlog<br />
micropertita nf microperthite<br />
micropliegue nf micr<strong>of</strong>old<br />
microregistro nm microlog<br />
microscopia nf microscopy<br />
microsc6pico,-ca adj microscopic<br />
microscopic nm microscope | m. binocular<br />
binocular microscope | m. estereoscopico<br />
stereroscopic microscope | m. polarizante<br />
polarizing microscope<br />
microsismico,-ca adj microseismic<br />
microsismo nm microseism<br />
miche nm [Fresnillo, Mex] a ore <strong>of</strong> argentiferous<br />
galena, sphalerite and pyrite | [Santa Cruz de<br />
A lay a, Mex] any black amorphous mineral<br />
found in veins<br />
miembro nm member<br />
migmatita nf migmatite<br />
migmatizacidn nf migmatization<br />
migracidn nf migration | m. de los continentes<br />
continental drift | m. primaria primary<br />
migration | m. secundaria secondary migration<br />
milibarnm millibar<br />
miligramo nm milligram<br />
M-5<br />
mililitro nm milliliter<br />
milimetro nm millimeter<br />
milonita nf mylonite<br />
milonitizacidn nf mylonitization<br />
milla nf mile<br />
milldn nm [Mex] an ore pile<br />
mimatesa nf mimetite<br />
mimetita nf mimetite<br />
mimetesita nf mimetite<br />
mimetismo nm mimetism<br />
mina nf mine | mineral deposit | ore | spring |<br />
m, ahogada [Col] placer mine covered by an<br />
active landslide | m. alt a [Col] placer mine<br />
situated above available water | m. amparada<br />
mine maintained in posession by paying the<br />
necessary fees but not necessarily worked | m.<br />
antigua mine worked in Indian or <strong>Spanish</strong><br />
colonial times | m. aunfera graphic tellurium |<br />
m. baja [Col] placer mine situated below<br />
available water | m. capotera [Col] shallow<br />
placer | m. cateada mining claim explored by<br />
catas or shallow shafts or pits | m. ciega [Bol]<br />
abandoned working | m. cogollera [Col] mine<br />
which was pr<strong>of</strong>itable when worked at the<br />
surface but became unpr<strong>of</strong>itable once workings<br />
were extended underground | m. colindante<br />
adjacent or bordering mine | m. de aluvion<br />
placer | m. de arena sand pit | m. de balasto<br />
ballast pit | m. de bronce bell-metal ore | m. de<br />
cacho [Col] placer mine where boulders are<br />
small enough to be removed by hand | m. de<br />
capacho [Col] mine with spotty mineralization |<br />
m. de cerro [Col] mine on a hill top where water<br />
is scarce | m. de cueva [Col] placer covered by<br />
large boulders | m. degrava gravel pit | m. de<br />
invierno [Col] placer mine that can only be<br />
worked during the rainy season | m. de saca<br />
[Col] placer mine that must be continuously<br />
dewatered to be worked | m. de verano [Col]<br />
mine that can only be worked during dry<br />
season | m. despilado mine robbed <strong>of</strong> its pillars<br />
| m. en labor working mine | m. hervida [Col]<br />
pay-dirt in a pothole | m. hullera coal mine | m.<br />
jornalera [Col] mine which covers costs but<br />
yields little pr<strong>of</strong>it | m. tonga mine that can be<br />
drained by gravity | m. de tope [Col] mine<br />
where gold is found in shoots but is otherwise<br />
barren | m. de transilvania graphic tellurium<br />
minado nm underground working, mining |<br />
mine working<br />
minador,-dora adj mining | nm miner
minal adj pertaining to a mine<br />
minar vtr to mine, undermine<br />
minera nf mine<br />
mineraje nm mining<br />
mineral adj mineral, ore<br />
mineral nm mineral, ore | spring | mine |<br />
mining district | m. ala vista ore in sight | m.<br />
accesorio accessory mineral | [Mex]<br />
independent rural town whose principal<br />
activity was mining | m. arrancado broken ore<br />
| m. bajo de ley low grade ore | m. beneficiable<br />
pay ore | m. calido [Ch] silver ore suitable for<br />
amalgamation by the tina process | m. de<br />
acarreo secondary ore | m. de alia ley high grade<br />
ore | m. de azogue ore amenable to<br />
amalgamation with mercury | m. de contacto<br />
contact mineral | m. de coral cinnabar<br />
contaminated by organic matter | m. de maquila<br />
custom ore | m. de montana ore disseminated in<br />
country rock (generally uneconomic) | m.<br />
desmenuzado fine-grained ore | m. en rueda<br />
bournonite | m. filoniano gangue mineral | m.<br />
gongorado [Col] vuggy ore | m. graso rich ore |<br />
m. guia type mineral | m. indice index mineral |<br />
m. intacto ore in place | m. neumatolitico<br />
pneumatolytic mineral | m. pesado heavy<br />
mineral | m. piritoso pyritic ore | m. pobre low<br />
grade ore | m. poroso honeycombed ore | m.<br />
recurrente \ m. tipomorfo typomorphic mineral |<br />
m. verde de plomo pyromorphite<br />
mineralizacidn nf mineralization<br />
mineralizador,-dora adj mineralizing<br />
mineralizar vtr to mineralize<br />
mineralogia nf mineralogy<br />
mineraldgico,-ca adj mineralogical<br />
mineralogista nm or/ mineralogist<br />
mineraloide nm mineraloid<br />
mineria nf art and science <strong>of</strong> mining | mining |<br />
m. chica small mines | m. hidrdulica hydraulic<br />
mining, hydraulicking | m. mediana medium-<br />
size mines | m. pequena small mines | gran m.<br />
large mines<br />
minero,-ra adj mineral | mining, pertaining to<br />
mining | economia minera mineral economics<br />
minero nm miner | mine | mineral deposit |<br />
[Bol, Pe] mine owner | [Potosi, Bol] mine<br />
foreman<br />
mineta nf little mine | minette<br />
minga nm [Bol, Pe] hired Indian labor (this<br />
should not be construed as indication that<br />
mingas were free laborers since most were<br />
M-6<br />
employed to pay <strong>of</strong>f debts owed to their<br />
employers or were obliged to work on behalf<br />
<strong>of</strong> their kurakas with their pay being used by<br />
the kuraka to make payments in lieu <strong>of</strong> sending<br />
mitayos to the mines) | m. repasiri Indian hired<br />
to mix, ladle and trod ore in the patio process<br />
<strong>of</strong> amalgamation <strong>of</strong> silver ores<br />
minimo nm cut-<strong>of</strong>f<br />
minio nm minium, red lead<br />
minutas nfpl survey notes<br />
mioceno,-na adj Miocene | nm Miocene<br />
mioce'nico,-ca adj Miocene<br />
miogeosinclinal nm miogeosyncline<br />
mira nf rod | m. de nivelacion levelling rod | m.<br />
taquimetrica stadia rod<br />
misisipiano,-na adj Mississippian<br />
misisipico,-ca adj Mississippian<br />
mispiquel nm mispickel, arsenopyrite<br />
mita nm Quechua word for "turn" which in the<br />
time <strong>of</strong> the Incas referred to a period <strong>of</strong><br />
mandatory public service; under the <strong>Spanish</strong><br />
this evolved into the mita minera, a system <strong>of</strong><br />
forced labor in the mines <strong>of</strong> Potosi, Cerro de<br />
Pasco and elsewhere in what is now Bolivia<br />
and Peru | [Bol] a day's work | m. mortiri<br />
service tending stamp mills used to crush<br />
silver ore | m. nueva a new system <strong>of</strong> forced<br />
labor set up by the Codigo Carolina in 1792<br />
under regulations intended to improve the<br />
conditions under which mitayos served<br />
mitayo nm Indian serving his mita<br />
mixtura nf mixture, blend<br />
moco nm iron scoria, slag | m. de hierro [El<br />
Caratal, Vz] brown iron ore, occuring as<br />
ferruginous conglomerate, sandstone, breccia<br />
or pisolitic iron ore and is considered to be an<br />
indicator <strong>of</strong> gold mineralization<br />
mocoruna nm Indian serving his first mita in a<br />
mine, i.e. a "greenhorn"<br />
mocheta blanca nf [Pachuca, Mex] rhyolitic tuff<br />
used as building stone<br />
mocheta morada w/[Pachuca, Mex] dacite used<br />
as building stone<br />
moda nf mode<br />
modelo nm model | m. aleatorio random model<br />
| m. de crecimiento growth model | m.<br />
determinista deterministic model | m. estocastico<br />
stochastic model<br />
modo nm mode, manner | m. deyacer mode <strong>of</strong><br />
occurrence<br />
modulo nm modulus | m. de precion modulus <strong>of</strong>
precision | m. de volumen bulk modulus | m. de<br />
Young Young modulus<br />
mo feta nf m<strong>of</strong>ette<br />
mogote nm [Pe] surficial, outcropping portion <strong>of</strong><br />
an ore deposit<br />
mogrollo nm [Me"x] silver sulfide ore<br />
mojtin nm claim corner, monument<br />
mojona nf land survey<br />
mojonamiento nm monumentation<br />
mojonar vtr to set monuments<br />
mol nm mole<br />
molaridad nf molarity<br />
molasa nf limey sandstone | molasse<br />
molde nf mold | m. de carga load mold<br />
moldura de rompiente nf cove<br />
mole nm large mass <strong>of</strong> rock | [chem] mole |<br />
[Col] galena | ores or concentrates consisting<br />
mostly <strong>of</strong> galena<br />
molecula nf molecule<br />
moledor nm grinder, mill<br />
moledora nf grinder, mill<br />
molejdn nm [Cuba] reef | ridge <strong>of</strong> rock<br />
moler vtr to grind, comminute<br />
molibdato nm molybdate<br />
molibdenita nf molybdenite<br />
molibdeno nm molybdenum<br />
molienda nf grinding, crushing | m. con pisones<br />
stamp milling<br />
molinera nf [Sierra Almagrera, Sp] siderite<br />
molino nm mill | ore sent to a mill | [Col]<br />
alluvial material that collects in a ground sluice<br />
| m. glaciar ice mill | m. de mazos stamp mill<br />
molonque nm [Mex] silver ore in which silver<br />
sulfides predominate over gangue | m.<br />
relumbroso stephanite<br />
moloquita nf dull green variety <strong>of</strong> agate<br />
monacita nf monazite<br />
monoclinal nm monocline<br />
monoclinico,-ca adj monoclinic<br />
montana nf mountain | country rock | m. de<br />
cobijadura overthrust mountain | m. de<br />
plegamiento folded mountain | m. troncal<br />
truncated upland<br />
monte nm mountain | m. isla \ m. residual<br />
monadnock<br />
montera nf outcrop | [Huelva, Sp] gossan |<br />
overburden on placer deposits<br />
montiano,-na adj Montian<br />
monticelita nf monticellite<br />
montfculo nm hillock, monticule<br />
montiense adj Montian<br />
M-7<br />
montmorillonita nf montmorillonite<br />
montdn nm heap or pile | pile <strong>of</strong> ore | [Me"x] a<br />
measure <strong>of</strong> weight | [Col] irregular deposit |<br />
m. acostada stratiform deposit | m. estrelazado<br />
or estoverca stockwork | m. redo a wide vein<br />
connecting stratiform and non-stratiform<br />
deposits<br />
morado,-da adj violet, purple<br />
morallidn nf [Col] an inferior emerald<br />
morena nf moraine | m. basal ground moraine |<br />
m. central medial moraine | m. de ablacion<br />
ablation moraine | m. defondo ground moraine,<br />
basal moraine | m. de kames kame moraine | m.<br />
depositada deposited moraine | m. interna<br />
ground moraine | m. en movimiento moving<br />
moraine | m. frontal terminal moraine | m.<br />
lateral lateral moraine | m. superior surface<br />
moraine | m. terminal end or terminal moraine<br />
morenico,-ca adj morainic, morainal<br />
moreno,-na adj brown<br />
morfoestructural adj morphostructural<br />
morfogenesis nf morphogenesis<br />
morfografia nf morphography<br />
morfologia nf morphology<br />
morfotectdnica nf morphotectonics<br />
moro,-ra adj color <strong>of</strong> red wine<br />
moromoro nm [Moquegua, Pe] argillaceous rock<br />
morrillo nm cobble, boulder<br />
morro nm a conical or pyramidal hill<br />
mortiri nm an Indian serving his mita tending<br />
stamps used to crush silver ore<br />
mosca nf [Mex] spot <strong>of</strong> black ore, usually silver<br />
sulfide, in quartz matrix<br />
mosornm monadnock<br />
mosqueado,-da adj spotted<br />
moteado,-da adj mottled<br />
movilizacidn nf mobilization<br />
movimiento nm movement | m. bascular<br />
oscillation | m. de masas mass movement | m.<br />
epirogenetico epirogenetic movement | m.<br />
eustdtico eustatic movement | m. orogenetico<br />
orogenesis<br />
moya nf volcanic clay<br />
muela nf hillock<br />
muera nf salt-water or brine<br />
muestra nf sample | specimin | m. alzada a mano<br />
grab sample | m. de pared core sample | m.<br />
sesgada biased sample<br />
muestrador nm sampler | m. de nucleos core<br />
sampler | m. de testigos core sampler<br />
muestrario nm sampling by core drilling
muestreo nm sampling multicolinealidad nf multicollinearity<br />
muestro nm sampling | m. multiple multiple or multicolor adj multicolored<br />
repetitive sampling | m. secuendal sequential munon nm mullion<br />
sampling muro nm sole | footwall | m. colgante hanging<br />
mulata n/[Col] well rounded quartz grains that wall<br />
accompany gold in placers muscovita nf muscovite<br />
mulato nm dark green or coppery green silver muy minado,-da adj honeycombed or dog holed<br />
ore | [Pe] silver oxysulfide ore | [Atacama, with workings<br />
Ch] silver sulfide ore below paco and above<br />
negrillo<br />
M-8
N<br />
nadi nm [Ch] broad, shallow swamp<br />
nakha nf finely crushed concentrates<br />
nato,-ta adj flattened (topography)<br />
nuzco nm [Pe] small coal | [Hualgayoc, Pe] ore<br />
spalled to the size <strong>of</strong> a walnut<br />
N-l
N<br />
nacarado,-da adj pearly, nacreous<br />
nacarar vtr to give a pearly luster to<br />
nacarita nf kaolinite<br />
naciente nm rising | east | nmpl headwaters |<br />
[Col] outcroppings<br />
nacimiento nm spring or source | headwaters |<br />
n. de un rfo head <strong>of</strong> a river<br />
nafta nf crude oil (obs) \ naptha | [Arg] gasoline<br />
| [Vz] high octane gasoline<br />
naftalina nf naphthalene<br />
nafteina nf naphthine (a fossil wax)<br />
naftina nf napthene<br />
nagiagita nf nagyagite<br />
naife nm uncut diamond<br />
namaqualita nf cyanotrichite<br />
namuriano,-na adj Namurian<br />
namurense adj Namurian | nm Namurian<br />
nan<strong>of</strong>dsil nf nann<strong>of</strong>ossil<br />
nanosegundo nm nanosecond<br />
nantoquita nf nantokite<br />
napa nf plate | aquifer | n. artesiana artesian<br />
aquifer | n. cautiva confined groundwater | n.<br />
colgada perched aquifer | n. de agua subterrdnea<br />
water table | n. rebajada lowered groundwater<br />
napoleanita nf corsite<br />
naranja adj orange | n. claro light orange<br />
nari nf nari (par <strong>of</strong> caliche)<br />
nariz nf nose (<strong>of</strong> a fold)<br />
narria nf a type <strong>of</strong> sledge<br />
nata nf slag | [Mex] litharge<br />
nativo,-va adj native<br />
natroborocalcita nf ulexite<br />
natr<strong>of</strong>ilita nf natrophilite<br />
natr<strong>of</strong>osfato nm natrophosphate<br />
navaja nf pocket knife<br />
nebraskiense adj Nebraskan<br />
nefelina nf nepheline<br />
nefelinita nf nephelinite<br />
nefelinitoide nm nephelinitoid<br />
nefelino nm nepheline<br />
nefelita nf nepheline<br />
nefeloideoJ/ nepheloid<br />
nefinolito nm nephinolith<br />
nefrita nf jade, nephrite | nephritoid<br />
nefritico,-ca adj jade, nephritic<br />
negativo,-va adj negative<br />
negrillo nm native silver black in color |<br />
stephanite | dark colored copper-silver ore |<br />
N-l<br />
[Arg, Mex] argentite | [Bol, Ch] complex silver<br />
sulfarsenate and antimonate ore | [Caracoles,<br />
Ch] complex sulfiodide-sulfchloride-sulfide-<br />
carbonate silver-lead ore | [Huelva, Sp] copper<br />
rich ore | [Hualg£yoc, Pe] dark mixture <strong>of</strong><br />
copper, iron and manganese oxides<br />
negro,-ra adj black | nm black | [Ch, Pe] dark<br />
colored caliche | [Guadalcazar, Mex] lead-<br />
grey, hepatic cinnabar | [Mex] silver-rich<br />
tetrahedrite | [Me"x] sulphuretted silver ore<br />
[Fresnillo, Mex] finely disseminated native<br />
silver and argentite in a pyrite matrix |<br />
[Charcas, Me"x] silver ore consisting <strong>of</strong><br />
sphalerite, galena, arsenopyrite, and<br />
chalcopyrite | n. de carbono carbon black | n .de<br />
humo lamp black | n. de plomo graphite<br />
negro-negro nm [Col] a black micaceous schist<br />
that hosts weathered out and hence barren<br />
silver veins<br />
negrueco,-ca adj blackish, darkish<br />
neis nm gneiss | n. agmatitico agmatic gneiss |<br />
n. de ojos augen gneiss | n. filoniano aldergneiss<br />
| n. glandular augen gneiss<br />
ne"isico,-ca adj gneissic<br />
nematoblastico,-ca adj nematoblastic<br />
Nemausense nm Nemausian, Valanginien<br />
neme nm [Col] manganese oxide<br />
neoautdctono nm neoautochthon<br />
neoblasto nm neoblast<br />
neoceno,-na adj Neogene<br />
Nedcico nm Neocomian<br />
neocomiano,-na adj Neocomian<br />
neocomiense adj Neocomian | nm Neocomian<br />
neocristalizacidn nf neocrystallization<br />
neocristico,-ca adj neocryst<br />
neocristo nm neocryst<br />
neodimio nm neodymium<br />
neoespato nm neospar<br />
ne<strong>of</strong>ormacion nf neogenesis<br />
neogenico,-ca adj neogenic<br />
nedgeno,-na adj Neogene | nm Neogene<br />
neoglaciacidn nf neoglaciation<br />
neohexano nm neohexane<br />
neomineralizacidn nf neomineralization<br />
neomorfismo nm neomorphism<br />
neoporfiritico,-ca adj neoporphyritic<br />
neosomo nm neosome<br />
neotectonico,-ca adj neotectonic | nm<br />
neotectonics<br />
neotipo nm neotype<br />
neovolcanico,-ca adj neovolcanic
neozoico,-ca adj Quaternary<br />
neptunio nm neptunium<br />
neritico,-ca adj neritic<br />
nerviense ad;' Nervian | nm Nervian<br />
nes<strong>of</strong>itico,-ca adj diabasic, nesophitic<br />
nesosilicato nm nesosilicate<br />
neudeckense adj Neudeckian | nm Neudeckian<br />
neumatdgeno,-na adj pneumatolytic<br />
neumatolitico,-ca adj pneumatolytic<br />
neumatolosis nf pneumatolysis<br />
neutroviscoso,-sa adj viscous neutral<br />
neuvizense adj Oxfordian | nm Oxfordian<br />
nevadiense adj Nevadan<br />
nevado adj snow-covered | nm firnfield, neV£ |<br />
snowcapped mountain, mountain with<br />
perpetual snow<br />
nevero nm perrenial snowcap or snowfield<br />
neviza nf f irn, nev£<br />
niagariense adj Niagaran<br />
nicle nm a var <strong>of</strong> chalcedony with some bands<br />
darker than others<br />
nicol nm nicol | nicoles cruzados crossed nicols<br />
nicolita nf niccolite, nicolite, nickeline<br />
nicopirita nf pentlandite<br />
nicho nm niche | n. de nwacion nivation hollow<br />
| n. de rompiente [geomorph] cove<br />
nidada or nida de oro nf nest <strong>of</strong> gold<br />
nido nm pocket (<strong>of</strong> ore) | nest (<strong>of</strong> minerals)<br />
niega nf [Cartagena, Sp] sterile portion <strong>of</strong> a vein<br />
nieve nf snow | n. penitente penitent, sun spike<br />
| n. pulverulenta powdery snow<br />
nife nm earth's inner core, nife, sial<br />
nifesima nf earth's inner core<br />
nikel nm nickel<br />
niobio nm niobium<br />
niob<strong>of</strong>ilita nf niobophyllite<br />
niquel nm nickel | nickel ore | n. arsenical<br />
niccolite | n. blanco chloanthite | n.-hierro<br />
nickel-iron<br />
niquelhexahidrita nf nickelhexahydrite<br />
niquelifero,-ra adj nickel-bearing, nickeliferous<br />
niquelina nf nickeline, niccolite<br />
niquelocre nm annabergite<br />
nitral nm nitrate bed or deposit | nitrate works<br />
nitratina nf soda niter, nitratite, caliche<br />
nitratita nf soda niter, nitratite, caliche<br />
nitrato nm nitrate | n. de amonio ammonium<br />
nitrate | n. de chile saltpeter | n. de potasio<br />
potassium nitrate | n. de sodio sodium nitrate |<br />
n. sodico sodium nitrate<br />
nitrera nf nitrate bed or deposit | nitrate works<br />
N-2<br />
nitreria nf niter bed | nitrate reduction works<br />
nitrico/-ca adj nitric<br />
nitrificacidn nf nitrification<br />
nitro nm nitrate | niter, saltpeter | n. de chile<br />
soda niter | n. potdsico potash niter | n. sodico<br />
soda niter<br />
nitrdgeno nm nitrogen<br />
nitroso,-sa adj nitrous<br />
nitruro nm nitride<br />
nivacidn nf nivation<br />
nivel nm level, height | level (tool) |<br />
[Santander, Sp] bed <strong>of</strong> calamine, worked as<br />
benches in a quarry | n. de agrimensor<br />
surveyor's level | n. de(l) agua water level | n.<br />
de agua fredtica water table | n. de arrastre<br />
haulage level | n. de base base level | n. de<br />
burbuja spirit level | n. de confianza confidence<br />
level | n. de creciente flood water level | n. de<br />
erosion \ n. de la galena adit level | n. de<br />
explotadon working level | n. de extraccion<br />
hoisting level, winding level | n. defluido fluid<br />
level (in a well) | n. de la napa fredtica phreatic<br />
water level | n. de rebanada slice level | n. de<br />
saturacion level <strong>of</strong> saturation | n. de suelo<br />
ground level | n. del mar sea level | n. esferico<br />
spherical level | n. estdtico static water level |<br />
n. estructural structural stage | n. fondo grade<br />
level | n. fredtico water table | n. hidrdulico<br />
level <strong>of</strong> saturation | n. hidrostdtico<br />
(ground)water level | hydrostatic level | n.<br />
iluvial illuvial horizon | n. inferior lower level |<br />
n. intermediario Intermediate level | n.<br />
intermedia blind level | n. media del mar mean<br />
sea level | n. paralelo parallel heading | n.<br />
piezometrico hydraulic gradient | piezometric<br />
level | n. principal Main level | n. superior<br />
upper level | al mismo n. at the same level | al<br />
n. de on a level with | a n. level<br />
nivelacidn nf leveling, aplanation<br />
nivelador,-dora adj levelling | nm or nf leveller<br />
nivelar vtr to level, survey (topographic<br />
mapping)<br />
niveles nmpl water-bearing strata<br />
niveleta nf levelling staff<br />
no alterado,-da adj unaltered<br />
no asfaltico,-ca adj nonasphaltic<br />
nobelio nm nobelium<br />
nobleza nf richness (<strong>of</strong> ore)<br />
nocerita nf fluoborite<br />
no concordancia nf nonconformity<br />
nochistle nm [M£x] chalcopyrite | [Tasco, M£x]
proustite<br />
nddulo nm nodule | [Col] ore shoot | n.<br />
ferruginoso ferruginous nodule | n. ferrtfero ball<br />
ironstone<br />
noduloso,-sa adj nodular<br />
no estratificado,-da adj unstratified<br />
no explorado,-da adj unexplored<br />
no explotado,-da adj unexploited, unworked<br />
no ferroso,-sa adj nonferrous<br />
no indurado,-da adj not indurated<br />
noli nm [Col] antimony oxysulphide derived by<br />
oxidation <strong>of</strong> stibnite<br />
no metalico nm nonmetallic<br />
nomogramo nm nomograph<br />
no polar adj non-polar<br />
noque nm [Ch] large stone receptacle for<br />
calicining ores | stone through which amalgam<br />
is washed in the patio process | [Pe] canvas<br />
sack used to recover mercury from amalgam<br />
nordfieldita nf esmeraldite<br />
no renewable adj nonrenewable<br />
norfolkense adj Norfolk | nm Norfolk<br />
noriano,-na adj Norain<br />
norienseo^y Norian<br />
norilsquita nf norilskite<br />
norma nf norm | pattern<br />
normalization nf normalization<br />
normalizar vtr to normalize (math)<br />
normativo,-va adj normative<br />
norte nm north | n. de brujula compass north | n<br />
magnetico magnetic north | «. verdadero true<br />
N-3<br />
north<br />
northfieldita nf esmeraldite<br />
noseanolito nm noseanolith<br />
nosena nf nosean, noselite<br />
Notosilopeano nm [Patagonia, Arg] a local age<br />
at the base <strong>of</strong> the Miocene<br />
novaculitico,-ca adj novaculitic<br />
novato nf worker with no experience in drilling<br />
wells, "boll weevil"<br />
nube nm cloud | n. ardiente ash flow | n. de<br />
cenizas ash cloud<br />
nucleo nm nucleus | core | [Rio Tinto, Sp]<br />
nodule <strong>of</strong> copper ore | n. antiguo shield | n.<br />
atomico atomic nucleus | n. de la tierra earth's<br />
core | n. de pliegue arch core | «. del sinclinal<br />
trough core | n. mineralizado ore shoot | n.<br />
terrestre earth's core | n. testigo drill core<br />
nucleogenesis nf nucleogenesis<br />
nudo nm kink | knot <strong>of</strong> ore, etc. | junction <strong>of</strong><br />
two mountain ranges<br />
nudoso,-sa adj knotty, bunchy<br />
nuevita nf samarskite<br />
nuevoleoniense adj Nuevoleonian<br />
numerico,-ca adj numerical<br />
numero nm number | n. al azar random number<br />
| n. atomico atomic number | n. de octano<br />
octane number<br />
numulitico,-ca adj Paleogene<br />
nusco nm [Amazonas, Pe] gold-bearing iron and<br />
manganese oxide-talc-quartz ore
o<br />
obducidn nf obduction<br />
obispo nm [Calif] condensed oil extracted from<br />
some crude oils | [Ch] caliche with a purplish<br />
hue<br />
objective nm objective, objective lens<br />
oblicuo,-cua adj oblique<br />
oblongo,-ga adj oblong<br />
obra nf work, labor | piece <strong>of</strong> work | obra de<br />
desfrute workings in ore | obra muerta dead<br />
workings, workings in barren rock<br />
obiador nm workman, labororer<br />
obradora w/[Mex] rock that breaks easily (o.<br />
buena) or or with difficulty (o. mala) when<br />
worked<br />
obrajero nm foreman, overseer<br />
obrero nm worker, laborer | o. minero Mine<br />
worker | o. sondista roughneck<br />
obrizo,-za adj pure, refined<br />
obrizo nm fine gold<br />
obsecuente adj obsequent<br />
observacidn nf remark | observation |<br />
observaciones aparejadas paired observations<br />
observado,-da adj observed<br />
obsidiana nf obsidian | o. de penjamo a var <strong>of</strong><br />
obsidian highly valued by natives <strong>of</strong> Mexico<br />
obsidianita nf obsidianite (obs tektite)<br />
obsta'culo intermedio nm stable zone between<br />
mobile belts<br />
obstruido,-da adj obstructed | [Bol] blocked out<br />
(ore)<br />
obturacidn nf obturation, filling<br />
obtuscingulo nm obtuse angle<br />
obtuso,-sa adj obtuse<br />
occidental adj occidental, <strong>of</strong> inferior quality<br />
(gems)<br />
ocelaradj ocellar<br />
ocelo nm ocellus<br />
odusidn nf occlusion, absorption<br />
ocre adj ocherous | nm ocher | o. almagro red<br />
ocher | o. amarillo (de hierro) yellow ocher,<br />
limonite | o. antimonial antimony ocher,<br />
stibconite, cervantite | o. azul blue ocher,<br />
azurite | o. Colorado red ocher | o. de antimonio<br />
antimony ocher | o. de Armenia a dark red clay<br />
from Lemnos, Greece | o. de bucares an orange-<br />
red ocher from Portugal | o. de cobre malachite<br />
| o. de hierro paint rock | o. de manganeso wad |<br />
o. de montana red ocher | o. de niquel<br />
O-l<br />
annabergite | o. de plomo cerussite | o. de<br />
tungsteno tungstite | o. marcial limonite | o.<br />
negro wad | o. plomifero massicot, litharge | o.<br />
rojo red ocher | o. tungsteno tungstite,<br />
ferrotungstite<br />
ocroita nf cerite<br />
ocrolita nf nadorite<br />
octaedrico,-ca adj octahedral<br />
octaedrita nf octahedrite (meteorite) | anatase<br />
(mineral)<br />
octaedro nm octahedron<br />
octafilita nf octaphyllite<br />
octano m octane<br />
oculto,-ta adj occult<br />
ochava nf two adarmes or 72 granos<br />
ochoenseadj Ochoan<br />
ochran nm [Oravieza, Sp] a yellow clay<br />
oerstedio nm oersted<br />
<strong>of</strong>icalcita nf ophicalcite<br />
<strong>of</strong>icarbonato nm ophicarbonate<br />
<strong>of</strong>icina nf[Pe, Ch] nitrate works | [Me"x]<br />
furnace used to retort mercury | o. de beneficio<br />
mill | o. de concentration concentrator | o. de<br />
fundicion smelter<br />
<strong>of</strong>iolita nf ophiolite<br />
<strong>of</strong>iolftico,-ca adj ophiolitic<br />
<strong>of</strong>ita adj ophite<br />
<strong>of</strong>itico,-ca adj ophitic<br />
ohmio nm ohm<br />
oikocristnm oikocryst<br />
oitava nf [Me"x] a weight <strong>of</strong> approximately 17.5<br />
carats<br />
ojiva nf ogive<br />
ojo nm small irregular bunch <strong>of</strong> ore | (SWUS)<br />
very small lake, pond | o. de agua spring<br />
discharging on a plain | o. de gato cat's eye, a<br />
variety <strong>of</strong> agate | o. de muerto [Cauca, Col] a<br />
porphyry with large white porphyroblasts | o.<br />
de pavo real a var marble | o. de perdiz finely-<br />
crystalline galena | o. de pescado a var <strong>of</strong><br />
apohyllite | o. de polvillo patch <strong>of</strong> rich ore | o.<br />
de tigre tiger's eye | o. de vibora [Zacatecas,<br />
M6c] yellow sphalerite | o. termal hot spring<br />
olefina nm olefin<br />
olenekiense adj Olenkian<br />
oleoducto nm pipeline<br />
Olenense nm Potsdam<br />
Olenidense nm Potsdam<br />
oligisto nm specular hematite | o. micaceo<br />
micaceous iron ore | o. rojo hematite<br />
oligocenico,-ca adj Oligocene
oligoceno,-na adj Oligocene | nm Oligocene<br />
oligoclasa nf oligoclase<br />
oligoclasita nf oligoclasite (obs, variety <strong>of</strong><br />
diorite)<br />
oligoelemento nm trace element<br />
olig<strong>of</strong>iro nm oligophyre (obs, variety <strong>of</strong> diorite)<br />
oligomictico/-ca adj oligomictic<br />
oligopelico,-ca adj oligopelic<br />
oligosita nf oligoclasite (obs, variety <strong>of</strong> diorite)<br />
oligotr<strong>of</strong>ia nf oligotrophy<br />
oligotr6fico,-ca adj oligotrophic<br />
olisoglifo nm olistoglyph<br />
olistrostroma nf olistrostrome<br />
olivina nf olivine impr<br />
olivinita nf olivinite<br />
olivino nm olivine<br />
olivinoide nm olivinoid<br />
olla nf whirlpool | [Mex] slag pot | [Sp] cirque<br />
| o. de gigante pot hole | o. de remolineo pot hole<br />
ollero nm [Mex] a worker who handles slag pots<br />
olleta nf [Antioqua, Col] pot-holes in bedrock <strong>of</strong><br />
placers<br />
olio de sapo nm [Sp] augengneiss<br />
ombrogenuo,-nua adj ombrogenous<br />
omfacita nf omphacite<br />
omisidn nf [strat] omission<br />
onda nf wave (electromagnetic or sonic) | o.<br />
acustica acoustic wave | o. de explosion<br />
detonation wave | o. longitudinal longitudinal<br />
wave | o. parasita de superficie ground roll | o.<br />
reflejada reflected wave | o. refractada refracted<br />
wave | o. sismica siesmic wave | o. sonora<br />
sound wave | o. superficial surface wave | o.<br />
transversal transverse wave | o. trasmisora<br />
carrier wave<br />
ondeanteod/ undulating<br />
dndula nf [ Arg] ripple | 6 descendente<br />
downslope ripple | 6 incompleta star ripple<br />
ondulacidn nf undulation | [Sp] ripple | ripple<br />
mark | o. asimetrica asymmetric ripple mark |<br />
o. conjugada compound ripple mark | o. de<br />
cauce ripple scour | o. de interferencia cross-<br />
ripple | o. de resaca backwash ripple mark | o.<br />
linguloide cuspate or linguloid ripple mark | o.<br />
simetrica symmetric ripple mark | o. transversa<br />
transverse ripple mark<br />
ondulado,-da adj undulate, undulated<br />
ondulante adj undulating<br />
ondulita nf [Arg] ripple mark | o. asimetrica<br />
asymmetric ripple mark | o. conjugada<br />
compound ripple mark | o. de cauce ripple<br />
O-2<br />
scour | o. de resaca backwash ripple mark | o.<br />
linguloide cuspate or linguloid ripple mark | o.<br />
simetrica symmetric ripple mark | o. transversa<br />
transverse ripple mark<br />
dnice nm onyx | 6. de Argelia calcite stalagtite or<br />
stalagmite<br />
dnique nm onyx<br />
6nix adj onyx | nm onyx | o. Mexicano alabaster<br />
onokoide nm onokoid<br />
onondagiense adj Onondagan<br />
Ontariano nm Ontarian<br />
onza nf ounce<br />
ooide nm ooid<br />
o<strong>of</strong>asmico,-ca adj oophasmic<br />
oolita nf oolite | o. ferrica oolitic iron ore,<br />
minette<br />
oolitico,-ca adj oolitic<br />
oolitizacidn nf oolithization<br />
oolito nm oolith<br />
oolitoide nm oolitoid<br />
ooloide nm ooloid<br />
oovoide nm oovoid<br />
opacidad nf opacity<br />
opacita nf opacite<br />
opaco,-ca adj opaque<br />
opalado,-da adj opalized<br />
opalescencia nf opalescence<br />
opalescente adj opalescent<br />
opalino,-na adj opalescent, opal, opaline | nf<br />
opaline<br />
opalizado,-da adj opalized<br />
dpalo nm opal | o. comun common opal | o. de<br />
fuego fire opal | o. de madera wood opal | o.<br />
dorado fire opal \ o. fino fine opal | o. jospeodo<br />
jaspopal | o. lechoso milk opal<br />
operario nm working miner<br />
operacidn nf operation<br />
operational adj [strat] operational<br />
operador,-dora nm/f operator<br />
opisometto nm opisometer<br />
opoca nf Opoka<br />
optaliov-ca adj optalic, caustic<br />
dptica nf optics | 6 critalogrdfica optical<br />
crystallography<br />
6ptico,-ca adj optic, optical<br />
optimacidn nf optimization | o. en la<br />
recuperadon de petroleo enhanced oil recovery<br />
opuesto,-ta adj opposite<br />
oquedad nf pore, cavity, vug | channel <strong>of</strong><br />
communication between orebodies<br />
orbiculo nm orbicule
drbita nf orbit<br />
orden nm order | o. de cristalizacian order <strong>of</strong><br />
crystallization<br />
ordenacidn nf [Sp] data processing<br />
Ordenanzas de Mineria nfpl mining laws<br />
introduced to Mexico in 1784 and remaining<br />
in effect until the codigo de minus <strong>of</strong> 1884<br />
Ordenanzas de Nueva Espana nfpl mining laws<br />
in force in Peru from 1786 to 1900<br />
Ordenanzas del Nuevo Cuaderno nfpl mining<br />
law established by King Phillip II <strong>of</strong> Spain<br />
ordonezita nf ordonezite<br />
Ordovicense nm Ordovician<br />
ordoviciano,-na adj Ordovician<br />
ordovicico,-ca adj Ordovician | nm Ordovician<br />
orelliense adj Orellan<br />
orfeita nf orpheite<br />
organal nm [Col] gold-bearing gravels<br />
intercalated with boulders and cobbles<br />
rendering exploitation difficult<br />
oig£nico,-ca adj organic<br />
oiganigrama nm chart<br />
organdgeno,-na adj organogenic<br />
oiganometalico,-ca adj organometallic<br />
oiganosedimentario,-ria adj organosedimentary<br />
orientacidn nf direction | orientation | o.<br />
preferencial preferred orientation<br />
oriental adj oriental, genuine (gems)<br />
orientacidn nf orientation<br />
orientado,-da adj oriented<br />
orientarpfr to orient<br />
oriente nm orient (gems)<br />
orificio nm opening<br />
orilla nf river bank | shore (sea or lake) | edge,<br />
side | selvage | rim | o. concava concave bank<br />
| o. convexa convex bank | o. de arcilla or de<br />
barro clay selvage | o. de deslizamiento landslide<br />
scar or terrace<br />
orillo nm selvage<br />
orin nm rust<br />
oriskaniense adj Oriskanian<br />
onto nm [Col] color, traces <strong>of</strong> gold found in a<br />
gold pan<br />
orizita nf epistilbite<br />
orla nf border, fringe | o. continental continental<br />
borderland | o. fredttea capillary fringe<br />
» a nm gold | o. argental copper-bearing<br />
eiectrum | o. bajo gold ore <strong>of</strong> low grade | o.<br />
batito beaten gold | o. blanco white gold | o.<br />
blanco de Colombia amalgam | o. bruto gold<br />
bullion | o. corrida [Ch] placer gold | o. crespo<br />
O-3<br />
[Col] distal placer gold | o. cristalizado natural<br />
crystal <strong>of</strong> gold | o. de aluvian placer gold | o. de<br />
barranca [Col] gold from the cerros <strong>of</strong> Santa<br />
Rosa | o. de escama [Col] spangle gold | o. de<br />
espuma [Col] float gold | o. de gato (de los gatos)<br />
biotite with a gold-like or metallic color, fool's<br />
gold | o. de lavadero gold that can be panned or<br />
washed | o. de ley fine gold | o. de molino gold<br />
obtained in trunking | o. de monte [Col] gold<br />
from the mines <strong>of</strong> Angostura, Antioquia (distal<br />
placer gold deposits) | o. de Nagyag nagyagite<br />
| o. de recogida [Col] a lot <strong>of</strong> gold obtained from<br />
several mines | o. de veta vein gold | o.<br />
empolvado gold dust | o. en barras gold bullion<br />
| o. en hojas gold leaf | o. en panes gold leaf j o.<br />
en pasta gold bullion | o, en polvo gold dust | o.<br />
filoniano vein gold | o. fino [Col] distal placer<br />
gold | o. greda [Vz] placer gold | o. guantn gold<br />
under legal standard | o. libre free gold | o.<br />
mate unpolished gold | o. molido a mono gold<br />
obtained by hand grinding | o. moscorr<strong>of</strong>io<br />
[Col] wire gold found in placers | o. nativo<br />
native gold | o. negro [Vz] gold covered by iron<br />
oxide and organic matter which will not<br />
amalgamate | o. nino [Col] float gold | o.<br />
paradojico native tellurium | o. puro fine gold |<br />
o. refinado refined gold | o. verde gold <strong>of</strong> a<br />
greenish color | o. virgen gold bullion<br />
oroclino nm orocline<br />
orocr£tico,-ca adj orocratic<br />
oroche nm [Mex] bullion containing both gold<br />
and silver | o. natural electrum<br />
orogennra erogenic belt<br />
orogenesis nm mountain building, orogenesis,<br />
orogeny<br />
orogene>tico,-ca adj orogenetic<br />
orogenia nf mountain building, orogenesis,<br />
orogeny<br />
orogenico,-ca adj erogenic<br />
ordgeno nm erogenic belt, orogen<br />
orogeosinclinal nm orogeosyncline<br />
orografia nf orography<br />
orogr£fico,-ca adj orographic<br />
orometria nf orometry<br />
oropimente nm orpiment<br />
oropidn nf a s<strong>of</strong>t, brown or reddish black clay<br />
oroseita nf iddingsite<br />
ortita nf orthite, allanite<br />
ortoanfibol nm orthoamphibole<br />
ortoandesita nf orthoandesite (obs,<br />
orthopyroxene andesite)
ortobituminoso,-sa adj orthobituminous<br />
ortobromita nf embolite<br />
ortocaliza nf ortholimestone<br />
ortoclasa nf orthoclase<br />
ortoclasita nf orthoclasite (obs, granite, syenite)<br />
ortoclino nf orthocline<br />
ortodorita nf orthoclorite<br />
ortoconglomerado nm orthoconglomerate<br />
ortocronologia nf orthocronology<br />
ortocrisotil nm orthchrysotile<br />
ortocuarcita nf orthoquartzite<br />
ortocuarcitico,-ca adj orthoquartzitic<br />
ortodolomia nf orthodolostone<br />
orto-eje nm orthoaxis<br />
ortoesquisto nm orthoschist<br />
ortoestratigrafia nf orthostratigraphy<br />
ort<strong>of</strong>elsita nf orthophyre<br />
ort<strong>of</strong>irico,-ca adj orthophyric<br />
ortdfiro nm orthophyre (obs)<br />
ortogeosinclinal nm orthogeosyncline<br />
ortogneisnm orthogneiss<br />
ortogonal adj orthagonal<br />
ortogra'fico,-ca adj orthographic<br />
ortogranito nm kaligranite<br />
ortohidrico/-ca adj orthohydrous<br />
ortolignitico,-ca adj ortholigneous<br />
ortomagma'tico,-ca adj orthomagmatic<br />
ortomaimdl nm orthomarble<br />
ortomatriz nf orthomatrix<br />
ortome*trico/-ca adj orthometric<br />
ortomimico,-ca adj orthomimic<br />
ortom6rfico,-ca adj orthomorphic, conformal<br />
ortomorfismo nf orthomorphism, conformality<br />
ortoneis nf orthogneiss<br />
ortopiroxenita nf orthopyroxenite<br />
ortopiroxeno nm orthopyroxene<br />
ortorroca nf orthorock<br />
ortorr6mbico,-ca adj orthorhombic<br />
ortosa nf orthoclase | o. descompuesta kaolinized<br />
orthoclase | o. sodica sanidine<br />
ortosilicato nm orthosilicate<br />
ortosita nf orthosite<br />
ortotectico,-ca adj magmatic<br />
ortotectordsmo nm orthotectonics, alpinotype<br />
tectonics<br />
oruga nf bulldozer, caterpillar tractor, "cat"<br />
oscilacidn nf oscillation<br />
oscilartrfr to oscillate<br />
0-4<br />
osificacidn nf ossification<br />
osificar vtr to ossify<br />
osificarse vpr to become ossified<br />
osipita nf ossipite (obs, var <strong>of</strong> troctolite)<br />
osmio nm osmium<br />
osmiridio nm osmiridium<br />
ostra'codo nm ostracod<br />
otajanita nf ottajanite (obs, leucite trachybasalt)<br />
oul<strong>of</strong>olita nf oul<strong>of</strong>olite, cave flower<br />
ovillo nm skein | en forma de o. tangle-shaped,<br />
tangled-up<br />
ovoide adj ovoid, oviform, egg-shaped<br />
ovoideo,-da adj ovoid, oviform, egg-shaped<br />
oviforme adj oviform, ovoid, egg-shaped<br />
oxalita nf humboldtine<br />
oxamita nf oxammite<br />
oxfordiano,-na adj Oxford ian<br />
oxfordenseadj Oxfordian | nm Oxford ian<br />
oxibasi<strong>of</strong>itico/-ca adj oxybasiophitic<br />
oxicloruro nm oxychloride | o. de cobre<br />
atacamite<br />
oxidacidn nf oxidation, oxidizing<br />
oxidadante adj oxidizing<br />
oxidarirfr to oxidize<br />
oxidate nm oxidate<br />
oxidita nf oxidite, shale-ball<br />
dxido nm oxide | 6. cuprico tenorite | 6. de calcio<br />
quicklime | 6. de cine calamine, zincite | 6. de<br />
circonio baddeleyite | 6. de cobre cuprite,<br />
tenorite | 6. de estano cassiterite | 6 de hierro<br />
iron oxide | 6 .de manganese manganese oxide,<br />
pyrolusite | 6. de mercurio hydrargyrite | 6. de<br />
paladio paladite | 6. de titano titanium dioxide |<br />
6. de urano uraninite | 6. de zinc zinc oxide | 6.<br />
ferrico ferric oxide | 6. hidratado hydrated oxide<br />
| 6. rojo de cine zincite<br />
oxigenador-da adj oxygenated<br />
oxigeno nm oxygen<br />
oxihornblenda nf oxyhornblende, basaltic<br />
hornblende<br />
oximagnita nf oxymagnite, maghemite<br />
oximesostasis nf oxymesostasis<br />
oxi<strong>of</strong>itico,-ca adj oxyophitic<br />
oxisfera nf oxisphere<br />
ox<strong>of</strong>errita nf ox<strong>of</strong>errite<br />
Ozarkense nm Ozarkian (obs)<br />
ozoquerita nf ozocerite, native parrafin
pabelldn nm pavilion (<strong>of</strong> a precious stone)<br />
paco nm [Bol, Pe] gossan, oxidized or partly<br />
oxidized ore <strong>of</strong> a reddish color | [Ch] silver<br />
chloride ore<br />
pacoso,-sa adj [Pe] oxidized, gossany<br />
pack nm pack ice<br />
pachamanca nf [Pe] a small reverboratory<br />
furnace<br />
pachapampa nf [Pe] ore cobbed from waste<br />
pachas nfpl [Pe] gypsum<br />
padrastal nm sterile vein cutting a mineralized<br />
vein<br />
padre del sal nm crystalline selenite<br />
padrdn nm register <strong>of</strong> a denounced (filed) claim<br />
pago nm payment | p en production production<br />
payment loan<br />
paigeita nf vonsenite<br />
paila nf large pan | p. de amalgamation<br />
amalgamating pan<br />
pais nm country | p. bajo flatland | p. marginal<br />
borderland<br />
paisaje nm landscape<br />
paja quemada nf [Potosi, Bol] plumosite which<br />
resembles burnt straw<br />
pajaro minero nm [Vz] a species <strong>of</strong> bird which<br />
was thought to be a sure indicator <strong>of</strong> placer<br />
gold<br />
pajuela nf ore that glitters | pajuela de oro grains<br />
<strong>of</strong> gold<br />
pala nf shovel | [Mex] treading <strong>of</strong>torta by foot<br />
in the patio process <strong>of</strong> amalgamation <strong>of</strong> silver<br />
ores | p. de turbero peat cutter<br />
palacra or palacrana nf nugget <strong>of</strong> native gold |<br />
gold ingot<br />
paladio nm palladium<br />
paladioarseniuro nm palladioarsenide<br />
paladiobismutoarseniuro nm<br />
palladiobismutharsenide<br />
palagonizacidn nf palagonization<br />
palaita nf hureaulite<br />
palasita nf pallasite<br />
palasomo nm palasome<br />
palatiense adj Palatinian, Pfalzian<br />
paleador nm shoveller<br />
paleaduro nm shovelling<br />
paleaje nm shovelling<br />
palear vtr to shovel<br />
paleoacuifero nm paleoaquifer<br />
paleoambiente nm paleoenvironment<br />
paleoautoctono nm paleoautochthon<br />
paleobatimetrico,-ca adj paleobathymetric<br />
paleobotanica nf paleobotany<br />
paleocanal nm paleochannel<br />
paleocarstnm paleokarst<br />
paleocenico,-ca adj Paleocene<br />
paleoceno,-na adj Paleocene | nm Paleocene<br />
paleoclima nm paleoclimate<br />
paleoclimatko,-ca adj paleoclimatic<br />
paleoclimatoldico/-ca adj paleoclimatologic<br />
paleoclimatologia nf paleoclimatology<br />
paleodrenaje nm paleodrainage<br />
paleoecuador nm paleoequator<br />
pale<strong>of</strong>iro nm paleophyre (obs, andesite)<br />
pale<strong>of</strong>itico,-ca adj paleophytological<br />
pale<strong>of</strong>itologia nf paleophytology<br />
paledgeno,-na adj Paleogene | nm Paleogene<br />
paleogeografia adj paleogeography<br />
paleogeografico,-ca adj paleogeographic<br />
paleogeoldgico,-ca adj paleogeologic<br />
paleogeomorfologia nf paleogeomorphology<br />
paleohidrologia nf paleohydrology<br />
paleolatitudino nm paleolatitude<br />
paleolimnologia nf paleolimnology<br />
paleolitoldgico,-ca adj paleolithologic<br />
paleomagnetico,-ca adj paleomagnetic<br />
paleomagnetismo nm paleomagnetism<br />
paleorelieve nm paleorelief<br />
paleontologia nf paleontology<br />
paleontoldgico,-ca adj paleontological<br />
paleontdlogo,-ga nm and nf paleontologist<br />
paleosalinidad nf paleosalinity<br />
paleosol nm paleosol | hard ground<br />
paleotectdnico,-ca adj paleotectonic<br />
paleotermal adj paleothermal<br />
paleotermometria nf paleothermometry<br />
paleotop<strong>of</strong>raffa nf paleotopography<br />
paleoviento nm paleowind<br />
paleovolcanico,-ca adj paleovolcanic, pre-<br />
Tertiary<br />
paleovulcanologia nf paleovolcanology<br />
paleozoico,-ca adj Paleozoic | nm Paleozoic<br />
palero nm shoveller<br />
paleta nf small shovel | [Alicante, Sp] tool for<br />
breaking up and lifting thin layers <strong>of</strong><br />
precipitated salt<br />
paleta pa nf palstage<br />
palevento nm palevent<br />
paligorskita nf palygorskite<br />
palingenico,-ca adj palingenic<br />
p-1
palingenisis nf palingenesis<br />
palinologia nf paynology<br />
palinspatico,-ca adj palinspastic<br />
palita nf pallite, ferrian millesite<br />
palmo nm one quarter <strong>of</strong> a vara<br />
palse nm pingo<br />
palustre adj swampy<br />
palla nf a fixed amount <strong>of</strong> ore to be carried out<br />
<strong>of</strong> a mine by an apiri during a workshift | [Bol,<br />
Pe] hand sorted ore, hand sorting<br />
pallaco nm [Bol, Pe] a piece <strong>of</strong> ore found in<br />
tailings or waste heaps | tailings<br />
pallador nm [Bol, Pe] ore sorter<br />
pallaquear or pallar vtr to sort or pick pallacos<br />
from waste dumps | [Bol, Pe] to hand sort ore<br />
pallaqueo nm [Bol, Pe] hand-sorting <strong>of</strong> ore<br />
palliri nm a worker employed to sort ore<br />
(usually a woman)<br />
palldn nm assay button<br />
pampa nf pampa, a grassy plain<br />
panabas or panabasa nf [Pe] tetrahedrite,<br />
tennantite<br />
panal de rosa nm [Amazonas, Pe] gold-bearing<br />
quartz occuring in a stockwork (this ore was <strong>of</strong><br />
less value than nusco as it was more difficult to<br />
extract and crush)<br />
pandermita nf priceite<br />
panetita nf panethite<br />
panidiomorfo,-fa adj idiomorphic<br />
panidiomorfo-granular adj idiomorphic<br />
panino nm [Mex] country rock (classified by<br />
miners according to strength: p muy blando rock<br />
easy to work but too s<strong>of</strong>t to be timbered; p.<br />
blando s<strong>of</strong>t rock that can and must be timbered;<br />
p. favorable ordinary ground worked by drilling<br />
and blasting; p. macizo and p. muy pacizo rock<br />
difficult or very difficult to work) | p. cenizo<br />
[Guadalcazar, M£x] clay stringers and pipes<br />
resembling moist bone ash closely associated<br />
with mercury mineralization<br />
paniso or panizo nm [Bol, Pe] altered rock,<br />
gangue, gouge | [Hualgtiyoc, Pe] feldspathic<br />
gangue | [Pataz, Pe] argillized feldspar rich<br />
rock associated with gold ore | [Ch, Pe]<br />
trachytic country rock | p. ahuesado, ahumado or<br />
verde [Chanarcillo, Pe] diabase sills intruding<br />
limestone<br />
pannoniense adj Pannonian<br />
pantalla nf [Bol] dike<br />
pantano nm swamp, marsh | depression where<br />
water collects<br />
P-2<br />
pantanoso,-sa adj swampy<br />
papa nm nugget <strong>of</strong> native gold | nodule <strong>of</strong> any<br />
mineral | [Arg] nodule <strong>of</strong> ulexite found in<br />
saline marshes<br />
paquete nm complex, series | p. de estratos<br />
sedimentary complex | p. de mantos series <strong>of</strong><br />
overthrust sheets<br />
parabituminoso,-sa adj parabituminous<br />
paracelsiano nm Paracelsian<br />
paraclasa nf fault<br />
paraconcordancia nf paraconformity<br />
paraconcordente adj paraconformable<br />
paracrisotil nf parachrysotile<br />
paracronologia nf parachronology<br />
parada nf [Me"x] work gang or crew, pare | p. a<br />
la carga crew paid by the load | p. de busca crew<br />
paid by proportion <strong>of</strong> ore worked | p. de<br />
hacienda or de obra crew paid by the day<br />
worked | p. rayada crew paid by eight hour<br />
shiftr worked<br />
paradiagenetico,-ca adj paradiagenetic<br />
paradiscordancia nf paraunconformity<br />
paraestratigrafia nf parastratigraphy<br />
paraestratigrafico,-ca adj parastratigraphic<br />
paraflna nf paraffin<br />
parafinico,-ca adj paraffinic<br />
paragenetico,-ca adj paragenetic<br />
parageosinclinal nm parageosyncline<br />
paragneis nm paragneiss<br />
paragon nm paragon (variety <strong>of</strong> diamond)<br />
paralelo,-la adj parallel | nm parallel | gallery<br />
driven paralel to a main gallery<br />
paraliageosinclinal nm paraliageosyncline<br />
paralico,-ca adj paralic, marginal<br />
paraloctono nm parallochthon<br />
paramagnetico,-ca adj paramagnetic<br />
paramagnetismo nm paramagnetism<br />
paramento nm face <strong>of</strong> hewn stone<br />
paramera nf desert | altiplano<br />
parametrico,-ca adj parametric<br />
parametro nm parameter<br />
paramilla nf [Ch] low range <strong>of</strong> mountains<br />
pa'ramo nm altiplano<br />
paramorfismo nm paramorphism<br />
paramorfo nm paramorph<br />
paradndula nf para-ripple<br />
pararizadura nf para-ripple<br />
parasitico,-ca adj parasitic<br />
paratectonico,-ca adj paratectonic | nm<br />
paratectordcs, Germanotype tectonics<br />
paratelurita nf paratellu rite
paratipo nm paratype<br />
parautdctono,-na adj parautochthonous | nm<br />
parautochthon<br />
paravannm paravane<br />
paravolastonita nf parawollastonite<br />
parcionero nm [Me"x] partner in a mining<br />
venture<br />
parche nm patch <strong>of</strong> rock<br />
parchetita nf parchettite (obs, leucite<br />
trachyandesite)<br />
pardo,-da adj earth-colored, brown, grey<br />
pardo nm the color <strong>of</strong> earth | [Mex] oxidized<br />
ore | p blanquizo silver grey<br />
pardusco,-ca adj earth-colorish, brownish,<br />
greyish<br />
pared nf wall | side or wall <strong>of</strong> a vein<br />
paria nf [Pe] cinnabar<br />
pariente adj allied<br />
parogenetico,-ca adj parogenetic<br />
paroxismo nm paroxysm<br />
paroxisiino,-ma adj paroxysmal<br />
parragdn nm standard silver for assayers<br />
parranthina nf scapolite<br />
parte nf part, share | p. bien mineralizada pay<br />
shoot | p. del propietario landowner royalty<br />
participacidn nf share, interest | p. del<br />
concesionario working interest<br />
particula nf particle | p. alfa alfa particle | p.<br />
beta beta particle | p. gamma gamma particle |<br />
p. libre free particle<br />
partidano nm [Cartagena, Sp] miner who works<br />
iron ore to a shallow depth only<br />
partido nm [Me"x] division <strong>of</strong> ores between<br />
owners, investors, workers, etc | portion <strong>of</strong> ore<br />
paid by miners to owners or by owners to<br />
miners<br />
partidornm ore sorter<br />
partridgeita nf bixbyite<br />
parva nf charge or mixture for a smelter<br />
parvero nm persons who mix charges for a<br />
smelting furnace<br />
pasadeniense adj Pasadenian<br />
paseo de tierras nm transport on the backs <strong>of</strong><br />
laborers<br />
pasivo,-va adj passive<br />
paso nm pass | any underground passage, drift<br />
or gallery | linear measure equivalent to two<br />
footsteps | p. real main gallery<br />
pasta nf paste | matrix, groundmass | [Bol]<br />
refractory ore | [Mex] silver ores <strong>of</strong> less than<br />
high grade | [Ozamatlan, Me"x] argentite |<br />
P-3<br />
[Guerrero, Mex, Ch] silver-rich tetrahedrite |<br />
[Zacualpan, Mex] silver-bearing pyrite |<br />
[Sinaloa, Mex] coating <strong>of</strong> ore on a rock | [Mex]<br />
amalgam <strong>of</strong> gold and silver | p. china silver<br />
ores in rounded pieces | p. morada silver ores<br />
purplish in color | p. mantecosa silver ores lead<br />
gray in color, considered to be <strong>of</strong> inferior<br />
quality | p. negra black silver ores considered<br />
to be <strong>of</strong> better quality | p. mixta silver bullion<br />
| p. vitrea glass<br />
pastoso nm [Asientos, Mex] high grade copper<br />
ore<br />
pata de perro nf dog leg, deviation <strong>of</strong> a well<br />
patente «/[Bol, Ch] an annual tax on mines<br />
figured as a fixed rate per hectare or claim<br />
paternoita nf kaliborite<br />
patrdn nm pattern, framework, as in el patron<br />
estructural 'the structural pattern 1 | template<br />
patina nf patina | p. del tiempo weathering | p<br />
desertica desert varnish<br />
patinacidn nf patination<br />
patio nm yard, court or floor used in the process<br />
<strong>of</strong> beneficio de patio, a cold heap amalgamation<br />
method for extracting silver from ores<br />
invented by Bartolome" de Medina at Pachuca,<br />
Mexico in 1557 and introduced into Peru in<br />
1574 | p. de amalgamation amalgamation floor<br />
paurocristalino,-na adj paurocrystalline<br />
pavonado,-da adj dark blue | blued, bronzed<br />
pavonado nm [Pe] tetrahedrite, (sometimes<br />
used for tennanite, jamesonite, enargite,<br />
bournonite and other sulfarsenides and<br />
sulfantimonides <strong>of</strong> lead) | deeper, unoxidized<br />
silver ores, below the bronces, consisting <strong>of</strong><br />
silver sulphides and sulphoantimonates | p.<br />
fino malinowskite<br />
pechblenda nf pitchblende<br />
pecho de paloma nm [Chacas, Pe] iron staining<br />
on the surface <strong>of</strong> coal seams<br />
pedernal nm flint | chert | [Pe] silver ore<br />
consisting <strong>of</strong> iron oxide bearing quartzose<br />
sands<br />
pedimentacidn nf pedindentation<br />
pedimento,-ta adj pediment | nm pediment<br />
pedragal nm gravel bet | stony ground | quarry<br />
pedregdn nm[Ch] boulder<br />
pedregoso,-sa adj stony, rocky<br />
pedregullo nm gravel | p. de ladera [Arg] talus<br />
pedrejal nm quarry<br />
pedrera nf quarry<br />
pedreria nf precious stones
pedrero nm stone cutter | [Ch] stony ground<br />
pedriscal nm stony or rocky ground<br />
pedrizo,-za adj stony, rocky | nf stony or rocky<br />
ground | gravel bed | quarry<br />
pedrosita nf hornblendite<br />
pedrusco nm rough stone, boulder | [Mex]<br />
cobble<br />
pegadura nf dirt, mud, smudge, etc., found on<br />
the walls <strong>of</strong> old mines<br />
pegmatita nf pegmatite<br />
pegmatitico,-ca adj pegmatitic<br />
pegmatitizacidn nf pegmatitization<br />
pegmatoide nm pegmatoid<br />
pegmat<strong>of</strong>irico,-ca adj granophyric<br />
pegmat<strong>of</strong>iro nm granophyre<br />
pegmatolita nf orthoclase<br />
peladilla nf small quartz pebble<br />
pelagico,-ca adj pelagic<br />
peleano,-na adj Peelean<br />
pelftico,-ca adj pelitic<br />
pelitomdrfico,-ca adj pelitomorphic<br />
pelo nm opaque streak that mars gemstones | p.<br />
de venado [Chacas, Pe] stibnite in fine needles<br />
pelodita nf pellodite, pelodite<br />
peloide nm peloid<br />
pelolitico,-ca adj argillaceous<br />
peltre nm spelter<br />
pella nf mass <strong>of</strong> native metal | amalgam<br />
produced by the patio process <strong>of</strong> amalgamating<br />
silver ore, well washed, squeezed and pressed<br />
into sugarloaf-shaped mounds | p. fecal fecal<br />
pellet | p. natural native amalgam<br />
pendiente nm slope, declivity | grade, gradient<br />
| hanging wall, ro<strong>of</strong> | pendant | p continental<br />
continental shelf<br />
pendulo nm plum bob<br />
peneconcordante adj peneconcordant<br />
penecontemporaneo,-nea adj<br />
penecontemporaneous<br />
peneplanizacion nf peneplanation<br />
penecontemporaneo,-nea adj<br />
penecontemporaneos<br />
peneplanacion nf peneplanation<br />
peneplanicie nf peneplain<br />
penesalino,-na adj penesaline<br />
penillanura nf peneplain<br />
peniplanicie nf peneplain<br />
peniplano nm peneplain<br />
pennina nf penninite<br />
penokeiense adj Penokean<br />
pensylviano,-na adj Pennsylvanian | nm<br />
P-4<br />
Pennsylvanian<br />
pensilvanico,-ca adj Pennsylvanian | nm<br />
Pennsylvanian<br />
pentahidrita nf pentahydrite, allenite<br />
pentahidroborita nf pentahydroborite<br />
pentano nm pentane<br />
penutiense adj Penutian<br />
pefia nm boulder, rock | [Col] bed rock beneath<br />
a placer | [Col] country rock | p. desprendida<br />
boulder | p. viva stone not yet quarried | p.<br />
hervida, caladora or picadora [Col] fissured<br />
bedrock in which placer gold has accumulated<br />
| p. mora [Col] red granite bedrock to a placer<br />
| p. subida [Col] s<strong>of</strong>t bedrock to a placer | p.<br />
falsa [Col] fragments <strong>of</strong> bedrock which, when<br />
encountered in a placer, give the appearance <strong>of</strong><br />
having reached actual bedrock | p. sarabiada<br />
[Col] gneiss | p. bobo [Col] shaley country rock<br />
in which veins are barren<br />
penascal nm rocky ground<br />
penasco nm large rock, boulder, crag | klippe |<br />
escarpment<br />
penascoso,-sa adj rocky, craggy<br />
penol nm large rock<br />
pendn nm large rock | [Huelva, Sp] iron oxide<br />
bearing jasperoid found in manganese deposits<br />
peon nm common laborer | bull gang | p. de<br />
cuadrilla roustabout | p. suelto roustabout<br />
peonaje nm work gang | work force (<strong>of</strong> a mine,<br />
etc.)<br />
pepa n/[Ch] nugget<br />
pepena nf [Mex] hand cobbed ores | rich or<br />
smelting ore | silver-bearing galena ore |<br />
[Huitzuco, Mex] high grade mercury ore, 10 to<br />
12% mercury | medio p. medium grade ore<br />
pepenado,-da adj [Mex] hand cobbed<br />
pepenador,-dora nm/f cobber, ore sorter<br />
pepenar vtr [Mex] to hand sort ore<br />
peperita nf volcanic sand<br />
pepino nm karst tower<br />
pepita nf nugget<br />
peracidita nf silexite<br />
peralcalino,-na adj peralkaline<br />
peraluminoso,-sa adj peraluminous<br />
perbitutninoso,-sa adj perbituminous<br />
percolacion nf percolation<br />
percolar vtr to percolate<br />
percristalino,-na adj percrystalline<br />
perderse vpr to become lost, pinch out, as for a<br />
vein, seam or bed<br />
perdida nf loss, generally from treatment <strong>of</strong> ores
| p. de lodo mud losses | p. par absortion<br />
absorption loss<br />
perdido,-da adj lost<br />
perdigdnnm iron pellet<br />
perenneod; perennial<br />
perfeccionar vtr to follow up, rexamine<br />
perfil nm cross-section, side-view | pr<strong>of</strong>ile | log<br />
j p. de estratos strata pr<strong>of</strong>ile | p. de equilibria<br />
graded pr<strong>of</strong>ile | p. de perforation drill log, well<br />
log | p. de pozo well log | p. de suelo soil pr<strong>of</strong>ile<br />
| p. edafico soil pr<strong>of</strong>ile | p. eletrico electric log |<br />
p. estratigrdfico columnar section | p.<br />
gravimetrico gravity pr<strong>of</strong>ile | p. longitudinal<br />
longitudinal pr<strong>of</strong>ile | p. litologico lithologic<br />
section | p. segun muestras sample pr<strong>of</strong>ile | p.<br />
transversal transverse pr<strong>of</strong>ile<br />
perfiladora nf grader<br />
perfilaje nm logging | p. de activation activation<br />
logging | p. de pozo well-logging<br />
perforabilidad nf drillability<br />
perforacidn nf drill or bore hole | perforation |<br />
p ancha large hole | p. a nucleos core drilling | p<br />
a percusion percussion drilling | p con cable<br />
cable drilling | p con diamante diamond drilling<br />
| p dirigida directional drilling | p con extraction<br />
de testigos core drilling | p. de disparo shot hole<br />
| p de exploration exploration drilling | p.<br />
desuiada deflected well | p. initial spudding in<br />
| p. por gas gas drilling j p. por percusion<br />
percussion drilling | p. por rotation rotary<br />
drilling | p. redutida slim hole | p. rotativa<br />
rotary drilling | p. termica jet piercing<br />
perforado nm boring, drilling | perforation<br />
perforador,-dora adj boring, drilling | nf borer,<br />
driller, drilling machine | p. a percusion<br />
percussion drill | p. con diamantes diamond<br />
drill | p. de diamantes diamond drill | p. de<br />
percusion percussion drill | p. rotativa rotary<br />
drill | nm driller (person)<br />
perforante adj drilling, boring<br />
perforar vtr to drill or bore<br />
perhialina nf perhyaline<br />
periclasa nf periclase<br />
periclinal adj periclinal, pericline | nm pericline<br />
peridoto nm peridot, olivine<br />
periferico,-ca adj peripheral<br />
perigenico,-ca adj perigenic<br />
perimetro nm perimeter | p. de influencia area or<br />
circle <strong>of</strong> influence<br />
periodo nm period | p. de amortization pay back<br />
period | p. de glatiation glacial period | p.<br />
P-5<br />
geocratico geocratic period<br />
peripedimento nm peripediment<br />
peritectico,-ca adj peritectic, reaction<br />
peri to nm expert | appraiser | skilled worker<br />
perknita nf ultramafic rock, ultramafite<br />
perla espata nf pearl spar<br />
perlado,-da adj pearly<br />
perliforme adj bead-like<br />
perlitico,-ca adj perlitic<br />
perl<strong>of</strong>ita nf perl<strong>of</strong>fite<br />
permeabilidad nf permeability<br />
permeable adj permeable<br />
permeacidn nf permeation<br />
permeametro nm permeameter<br />
permiano,-na adj Permian | nm Permian<br />
permico,-ca adj Permian j nm Permian<br />
permineralizacion nf permineralization<br />
permiso nm license | lease | p. de cateo<br />
exploration license | p. marginal edge lease<br />
permutacidn nf permutation<br />
per<strong>of</strong>skita, perovskita, perowskita adj<br />
perovskite<br />
pertenencia nf mining claim<br />
pertiga nf rod (measure <strong>of</strong> length)<br />
pertita nf perthite<br />
pertitico,-ca adj perthitic<br />
pertitoide adj perthitoid<br />
pertosita nf perthosite (obs, syenite)<br />
perturbacion nf perturbation | dislocation | p.<br />
de una veta disruption <strong>of</strong> a vein or lode | p.<br />
tectonica tectonic disturbance<br />
perturbado,-da adj disturbed<br />
pesado,-da adj heavy | <strong>of</strong> high specific gravity<br />
peso nm weight | silver coin <strong>of</strong> about 25 grams<br />
| [ Almaden, Sp] a weight <strong>of</strong> 20 arrobas \ p.<br />
atomico atomic weight | p. bruto gross weight j<br />
p. de oro coin equivalent to two (silver) pesos j<br />
p. espicifico specific gravity j p. neto net weight<br />
petlanque nm [Mex] argentite, usually,<br />
pyargyrite in places | any high-grade silver ore<br />
| p. acerado polybasite | p. Colorado, encarnado<br />
or rojo proustite | p. oscuro pyrargyrite | p.<br />
negro argentite<br />
petreo,-rea adj stone, <strong>of</strong> stone | stony | rocky,<br />
stone-like, petrous<br />
petrificacion nf petrification<br />
petrificado,-da adj petrified<br />
petrificar vtr to petrify<br />
petrificarse vpr to petrify<br />
petrifico,-ca adj petriferous<br />
petroclastico,-ca adj detrital
petr<strong>of</strong>a>brico,-ca adj fabric | nm fabric,<br />
petr<strong>of</strong>abric<br />
petr<strong>of</strong>isica nf petrophysics<br />
petrogenesis nf petrogenesis<br />
petrogenetico,-ca adj petrogenetic<br />
petrogenia nf petrogenesis<br />
petrografia nf petrography<br />
petrografico,-ca adj petrographic<br />
petrdgrafo,-fa nm and/ petrographer<br />
petroleno nm petrolene<br />
petrdleo nm petroleum j p. bisulfuro disulfide<br />
oil | p. (en) bruto or crudo crude oil j p.<br />
clandestine "hot oil" produced above allowables<br />
| p. de base asfaltica asphalt-base crude oil | p.<br />
de contrabando contraband oil | p. del propietario<br />
landowner's oil | j p. humedo wet oil j p.<br />
lampante parrafin oil, kerosene | p. ligero light<br />
oil, straw oil | p. muerto dead oil | p. petratado<br />
pretreated crude oil | p. pobre lean oil j p.<br />
sintetico synthetic oil | p. sulfuroso sour crude<br />
oil j p. verde green oil<br />
petrolero,-ra adj oil, petroleum | oil-bearing |<br />
nm tanker<br />
petrolifero,-ra adj petroliferous, oil-bearing<br />
petrologia nf petrology<br />
petroldgico,-ca adj petrological<br />
petrologo,-ga nm and/ petrologist<br />
petromorfo nm petromorph<br />
petroquimica nf petrochemistry<br />
petroquimico,-ca adj petrochemical<br />
petrosilexnm flint | amausite | hornstone<br />
pez nf tar, pitch | [Sp] isolated lens <strong>of</strong> coal | p.<br />
mineral asphalt<br />
pfalziense adj Pfalzian<br />
piacentino,-na adj Piacenzian<br />
piamonte nm piedmont<br />
piamontita nf piedmontite<br />
pica nf pick<br />
picacho nm pointed peak or summit<br />
picada nf survey line<br />
picado nm [Pe] surface outcropping <strong>of</strong> a vein<br />
picador nm miner who works with a pick or<br />
hammer and gad | [Sierra Almagrera, Sp] ore-<br />
sorter<br />
picapedrero nm stonecutter<br />
picaporro nm pick<br />
picar vtr/intr to cut stone | to hew, work with a<br />
pick or hammer and gad j p. un hilo [Col] to<br />
uncover a known vein<br />
picnita nf pycnite (par <strong>of</strong> topaz)<br />
pico nm peak | pickaxe | miner's pick | [Mex]<br />
P-6<br />
sledge hammer | a pico vertically<br />
picdn de cantera nm quarry pick<br />
picota nf peak <strong>of</strong> a mountain<br />
picritico,-ca adj picritic<br />
picrocromita n/picrochromite,<br />
magnesiochromite<br />
picr<strong>of</strong>armacolita nf picropharmacolite<br />
picurita nf pitch coal<br />
pie nm foot (measure <strong>of</strong> length) j foot or base <strong>of</strong><br />
a mountain | p. de cobra claw-end crowbar<br />
piedra nf rock, stone | mineral j p. acanterada<br />
[Durango, Mex] rhyolite j p. (de) alumbre<br />
alunite j p. aprieta [Me"x] limestone j p. arcillosa<br />
claystone j p. arenisca sandstone j p. arenosa<br />
sandstone | p. (de) azufre rock sulphur | p. azul<br />
bluestone, chalcanthite | [Mex] blue limestone<br />
| [Vz] mineralized diorite wall rock to gold<br />
veins | p. berroquena granite | p. blanca<br />
granulite j p. bruta [Mex] country rock, barren<br />
rock | p. cachumba [Cu] native calcium sulfate<br />
| p. calamina calamine | p. calarea limestone |<br />
p. caliza limestone | p. canela hessonite | p.<br />
capilar var <strong>of</strong> quartz j p. ciega any hard, opaque<br />
semiprecious stone | p. conglomerada<br />
conglomerate | p. conglutinada breccia j p.<br />
cornea hornstone, jasper j p. de acarreo erratic<br />
block or boulder j p. de arena [Col] sandstone |<br />
p. de barilla [Tamaulipas, Mex] limestone with<br />
clay partings | p. de berrocjuena coarse grained<br />
granite | p. de cat or de caliza chalk/ limestone |<br />
p. de campana phonolite | p. de candela flint | p.<br />
de canelo grossularite | p. de canteria [Me"x, Sp]<br />
granite | p. de canto dressed stone | p. de cine<br />
cassiterite | p. de cruz staurolite | p. de chispa<br />
flint | p. de churumbela [Col] decomposed<br />
felsite wall-rock to veins j p. de escopeta flint j<br />
p. defrijol [Guanajuato, Mex] red conglomerate<br />
j p. defuego fires tone | p. degrano [Me"x]<br />
granite | p. dejabon talc | p. de labrador<br />
greenstone | p. del dguila a nodular, clayey iron<br />
ore | p. de la luna labradorite | p. de las<br />
amazonas labradorite | p. de lumbre flint | p. de<br />
luna blue adularia | p. de mono [Mex] good<br />
specimin <strong>of</strong> ore, sometimes used for religious<br />
purposes j p. de mobre flint | p. de moco white,<br />
transparent var <strong>of</strong> chalcedony with dendritic<br />
staining | p. de moler [Col] syenite | p. de<br />
mollejon [Col] sandstone | p. palo [Ch] asbestos<br />
| p. de pipas meerschaum | p. de remedar<br />
[Guadalcazar, Mex] large fragment <strong>of</strong> granite |<br />
[San Nicolas, Mex] basalt | [Mazapil, Mex]
feldspathic porphyry | p. de sapo mica | p. de<br />
silleria dressed stone | p. de sol precious variety<br />
<strong>of</strong>oligoclase | p. de toque }asper, touchstone |<br />
p. de yeso rock gypsum | p. del lobrodor<br />
labradorite | p. dura any hard, siliceous stone |<br />
p. en bruto rubble stone | p. fetida stinkstone |<br />
p. filtrante porous rock | p. fina gemstone | p.<br />
frailesca [Almadem, Sp] breccia consisting <strong>of</strong><br />
fragments <strong>of</strong> schist and serpentine cemented<br />
by dolomite and clay | p. franca easily worked<br />
stone | p. guisante pisolite | p. hematitas<br />
hematite | p. hedionda [Guadalcazar, Mex]<br />
black limestone | p. imdn magnetite | p. inga<br />
pyrite | p. jaspe jasper | p. labrada dressed<br />
stone | p. lipe [Pe] chalcanthite | p. litografica<br />
argillaceous limestone | p. loca meerschaum |<br />
p. maciza stone lacking defects | p. marmol<br />
marble | p. meteorica meteorite | p. mineral ore<br />
| p. molar sandstone used for millstones | p.<br />
molena burstone | p. mora [Guadalcazar, Mex]<br />
diorite | p. nefritica]ade \ p. negra [Vz]<br />
greenish gray f elds tone | p. ollar serpentine |<br />
steatite | p. oniquina onyx | p. ovar oolite | p.<br />
palo [La Serena, Ch] asbestos | p. para<br />
brownstone | p. parda manganese oxides | p.<br />
partida broken stone | p. pez pitchstone/<br />
retinite | p. picada crushed or broken stone | p.<br />
pomez pumicestone | p. preciosa gemstone | p.<br />
radiante actinolite | p. rodada boulder/ cobble/<br />
pebble | p. sarabeada or sarabiada [Col]<br />
decomposed granite or gneiss | p. sonora<br />
phonolite | p. tosca pumice stone/ pumice | p.<br />
verde green stone | p. viva very hard stone,<br />
ledge rock | piedras de acarreo glacial erratics |<br />
p.-bola [Mex] boulder<br />
piemontita nf piemontite/ manganese epidote<br />
piezoclasa nf compression joint<br />
piezocristilizacidn nf piezocrystallization<br />
piezoelectricidad nf piezoelectricity<br />
piezoelectrico,-ca adj piezoelectric<br />
piezogeno,-na adj piezogene<br />
piezomagnetismo nm piezomagnetism<br />
piezome'trico,-ca adj equipotential, piezometric<br />
pila nf basin/ trough, tank or vessel | pothole |<br />
evaporation tank in salt works | [Col] pit dug<br />
on a river bank used to wash placer ore | p. de<br />
mineral heap <strong>of</strong> ore<br />
pilar nm pillar | p. de tierra pinnacle | p.<br />
tectonico horst<br />
pilita nf pilite (actinolite pseudomorphous after<br />
olivine) | tinder ore<br />
P-7<br />
pildnnm stone trough<br />
pilotaxftico,-ca adj pilotaxitic, felty<br />
pinacoide adj pinacoidal | nm pinacoid<br />
pinaculo nm pinnacle<br />
pinado,-da adj pinnate<br />
pingo nm a drill hole terminated short <strong>of</strong> its<br />
objective<br />
pinguita nf nontronite<br />
pinta nf [Me"x] the appearance <strong>of</strong> an ore which<br />
discloses its tenor according to its color, grain,<br />
weight and other physical properties | [Ch]<br />
silver ore assaying better than 50 diezmilesimos<br />
| [Vz] gold placer | color or gold seen on<br />
washing gravel in a pan | p. azul [Pachuca/<br />
Mex] silver sulfide ore | p. de metal indications<br />
<strong>of</strong> ore<br />
pintar vintr to exhibit indications <strong>of</strong> ore<br />
pinula nf sight <strong>of</strong> a surveying instrument<br />
pinza nf fishing tool used for extracting objects<br />
that have fallen down a drillhole<br />
pina nf cone-shaped ingot <strong>of</strong> refined silver |<br />
[Ch/ Pe/ Bol] bullion<br />
piocha nf pick<br />
piotina nf saponite<br />
pipa nf pipe<br />
pique nm bottom or ground | [Bol, Ch/ Pe]<br />
shaft | a pique [Mex] vertically | p. maestro [Ch]<br />
main shaft<br />
piquero nm miner<br />
piqueta nf mattox, pickaxe | p. con cabeza poll-<br />
pick<br />
piquetero nm boy who carries picks to workers<br />
in a mine<br />
piquetilla nf gad | small pickaxe<br />
pir nm [Ch] lead amalgam<br />
piralmandita nf pyralmandite<br />
piralspita nf pyralspite<br />
piramirade nm pyramid<br />
pirargirita nf pyrargyrite<br />
pireneita nf melanite<br />
pirex nm pyrex<br />
piriforme adj pear-shaped<br />
pirita nf pyrite | sulfides (in general) | p.<br />
arsenical arsenopyrite | p. blanca marcasite | p.<br />
capilar millerite | p. cobriza chalcopyrite | p.<br />
comun pyrite | p. de azufre iron pyrite | p. de<br />
carbon pyrite found in coal seams/ "scud" | p. de<br />
cobalto linnaeite | p. de cobre chalcopyrite | p. de<br />
cresta de gallo marcasite | p. de estano stannite |<br />
p. de fierro or hierro iron pyrite | p. de<br />
manganese hauerite | p. ferroniqueltfera
pentlandite | p. magnetica pyrrhotite | p.<br />
marcial iron pyrite | p. prismatica marcasite | p.<br />
radianite pyrite, firestone | p. roja niccolite | p.<br />
sana [Ch] unaltered pyrite<br />
piritico,-ca adj pyritic<br />
piritizacidn nf pyritization<br />
piritizar vtr to pyritize<br />
piritoedro nm pyritohedron<br />
piritoso,-sa adj pyrite-bearing<br />
piroaurita nf pyroaurite<br />
pirobelonita nf pyrobelonite<br />
pirobitumen nm pyrobitumen<br />
piroclastico,-ca adj pyroclastic<br />
pirocloro nm pyrochlore<br />
pirochroita nf pyrochroite<br />
pir<strong>of</strong>ana nf pyrophane, fire opal<br />
pir<strong>of</strong>anita nf pyrophanite<br />
pir<strong>of</strong>ilita nf pyrophyllite<br />
pirogenesis nf pyrogenesis<br />
pir6geno,-na adj pyrogenic | pyrogenetic<br />
pirolita nf pyrolite<br />
pirolusita nf pyrolusite<br />
piromagma nf pyromagma<br />
piromelana nf brookite<br />
piromerida nf pyromeride (obs, nodular<br />
rhyolite)<br />
pirometamorfismo nm pyrometamorphism<br />
pirometasoma'tico,-ca adj pyrometasomatic<br />
pirometasomatismo nm pyrometasomatism<br />
pirometria nf pyrometry<br />
pirometro nm pyrometer<br />
piromorfita nf pyromorphite<br />
pironafta nf pyronaphtha<br />
piropisita nf pyropissite<br />
piropo nm pyrope<br />
piroretinita nf pyroretinite<br />
pirosfero nm pyrosphere<br />
pirosmalita nf pyrosmalite<br />
pirostibina nf kermesite<br />
pirostilpnita nf pyrostilpnite<br />
piroxena nf pyroxene<br />
piroxenita nf piroxenite<br />
piroxeno nm pyroxene<br />
piroxenoide nm piroxenoid<br />
piroxferroita nf pyroxferroite<br />
piroxmangita nf pyroxmangite<br />
pirquin nm [Bol, Ch] contract mining<br />
pirquinero nm [Bol, Ch] contract or tribute<br />
miner, tributor<br />
pirrotina nf pyrrhotite<br />
pisar vintr to dip<br />
P-8<br />
piso nm stage | floor or level | bottom level in a<br />
mine | footwall | p. estructural structural stage<br />
pisolita nf pisolite j pisolith | p. volcanica<br />
volcanic pisolith<br />
pisolitico,-ca adj pisolitic<br />
pisones nmpl [Bol] stamps (in a stamp mill)<br />
piticita nf pitticite<br />
pivote nm stock<br />
pizarra nf slate | schist | p. arcillosa argillaceous<br />
slate or schist | [Sp] shale | p. arenosa sandy<br />
schist | p. astittoso splintered slate | p. azul<br />
[Cartagena, Sp] slate stained by iron silicate |<br />
p. bituminosa bituminous slate | p. carbonifera<br />
coaly shale | p. doritica chloritic schist | p.<br />
cristalina schist | p. de talco talc schist | p. de<br />
tejar ro<strong>of</strong>ing slate | p. en gavillas cordierite<br />
schist | p. fetida bituminous slate | p. gredosa<br />
clay slate | p. marcellus marcellus shale | p.<br />
micacea mica schist | p. ojosa augen schist<br />
pizarral nm slate quarry<br />
pizarreno,-na adj slatey | with or having slaty<br />
cleavage<br />
pizarreria nf slate quarry<br />
pizarrosidad nf schistosity | slaty cleavage<br />
pizarroso,-sa adj slatey<br />
placa nf plate | slab | p. litosferica lithospheric<br />
plate<br />
placer nm placer | p. aurifero gold-bearing<br />
placer | p. de costa marina beach placer | p.<br />
metaltfero ore-bearing placer<br />
plagioclasa nf plagioclase<br />
plagioclasita nf anorthosite<br />
plaisanciano,-na adj Plaisancian<br />
plaisanciense adj Plaisancian<br />
plan nm program | bottom level in a mine<br />
planacidn nf planation<br />
planctonnm plankton<br />
plancha nf plate or sheet <strong>of</strong> native metal<br />
plancheta nf plane-table<br />
planear vtr [Mex] to extract gold in fissures in<br />
bedrock beneath placers<br />
planicie nm plane | [geomorph] sides <strong>of</strong> a<br />
saddle | p. de abrasion denudation plane | p.<br />
troncal peneplain<br />
planificacidn nf planning<br />
planimetria nf planimetry<br />
planimetrico,-ca adj planimetric<br />
planimetro nm planimeter<br />
piano nm map, plan | plane | p. axil axial plane<br />
| p. de clivaje cleavage plane | p. de crucero<br />
cleavage plane | p. de ensayes assay map | p. de
estratificacion bedding plane | p. defalla fault<br />
plane | p. defractura fracture plane | p. de junta<br />
joint plane | p. de nivel datum | p. de referenda<br />
datum plane | p. de resbalamiento slickenside,<br />
fault plane | p. de simetria \ p, reticular<br />
plan<strong>of</strong>irico,-ca adj planophyric (obs)<br />
planta nf floor or level | horizontal cut | map,<br />
plan | plant, factory, facility | p. de recuperacion<br />
de acidos acid recovery plant<br />
plantar vtr to erect a mill, machinery, etc<br />
planteaje nm plant, mill<br />
planteamiento nm plant, mill<br />
plantel nm plant, mill<br />
plasma nf plasma (var <strong>of</strong> chalcedony)<br />
plasticidad nf plasticity<br />
plastico,-ca adj plastic<br />
plastotipo nm plastotype<br />
plata nf silver | silver ore | p. agria argentite,<br />
polybasite or stephanite | p. antimonial<br />
discrasite | p. azul [Tlalpujahua, Mex]<br />
aregentite [Zacatecas, Mex] silver chloride | p.<br />
azul acercado polybasite | p. azul de catorce<br />
selbite | p. blanca native silver | p. blanca<br />
pardusca argentiferous galena | p. bruto native<br />
silver | p. ceniza silver chloride | p. color de rosa<br />
native silver with reddish tinge | p. cornea<br />
cerargyrite | p. cornea amarilla iodyrite | p.<br />
cornea blanca cerargyrite | p. cornea verde<br />
embolite | p. cruda sponge silver | p. de clavos<br />
[Batopilas, Mex] wire silver in calcite gangue |<br />
p. de ley standard silver for assayers | p. de<br />
patio or de pie silver produced by the patio<br />
process <strong>of</strong> amalgamation | p. ductil argentite |<br />
p. en barra silver bullion | p, esponja sponge<br />
silver | p. gris argentite | p. labrada wrought<br />
silver | p. maciza [Pe] native silver in sheets |<br />
p. mixta electrum | p. nativa native silver | p.<br />
natural native silver | p. negra argentite,<br />
stephanite | p. negra prismatica stephanite | p.<br />
parda cerargyrite | p. pella silver amalgam | p.<br />
roja clara proustite | p. roja oscura pyrargyrite |<br />
p. seca silver ore which does not amalgamate<br />
with mercury | p. sulfurea agria stephanite | p.<br />
verde embolite [Plateros, Mex] bromyrite |<br />
[Catorce, Mex] mixture <strong>of</strong> bromyrite and<br />
iodyrite | p. virgen native silver | p. vitrea<br />
argentite<br />
plataforma nf platform | p. continental<br />
continental shelf | continental mass | p.<br />
continental exterior outer continental shelf | p.<br />
costera coastal plane | p. cratogenica cratogenic<br />
P-9<br />
shelf | p. de abrasion wave-cut platform | p. de<br />
perforacion drilling platform, drilling rig | p. de<br />
produccion production platform | p.<br />
epicontinental continental shelf | p. replegable<br />
jack-up rig | p. submarina continental shelf<br />
plateado,-da adj silvered, silver, silvery<br />
platillo nm [Mex] a red earthen plate used for<br />
testing ore<br />
platina nf platinum ore | crude native platinum<br />
platiniridio nm platiniridium<br />
platinita nf playnite<br />
platino nm platinum | p. nativo native platium<br />
plato para la var mineral nm gold pan<br />
platdn nm pan used for washing ore<br />
platoncito nm small gold pan<br />
playa nf beach, shore, strand | river bank | p.<br />
alta backshore | p. baja gold placer beneath the<br />
level <strong>of</strong> the adjacent stream | p. levantada<br />
raised beach<br />
playero nm [Bol, Pe] worker employed in<br />
washing gold<br />
plazolita nf hydrogrossular<br />
pleamar nm high tide<br />
plegado,-da adj folded | nm folding<br />
plegadura nf folding<br />
plegamiento nm folding | p. cabrio chevron<br />
folding | p. en acordeon accordian folding | p.<br />
entrecruzado cross-folding | p. imbricado<br />
imbricate folding | p. verdadero flexure, true<br />
folding<br />
plegar vtr to fold<br />
pleistoce"nico,-ca adj Pleistocene<br />
pleistoceno,-na adj Pleistocene | nm<br />
Pleistocene<br />
plenargirita nf matildite<br />
pleocristalino,-na adj holocrystalline<br />
pleocroico,-ca adj pleochroic<br />
pleocroismo nm pleochroism<br />
pleocroisto,-sta adj pleochroic<br />
pleonasta nf ceylonite<br />
plicacion nf plication<br />
pliegue nm fold | p. acostado recumbant fold |<br />
p. armonico harmonic fold | p. asimetrico<br />
asymmetric fold | p. buzante dip fold | p. cabrio<br />
chevron fold | p. cerrado closed fold, isoclinal<br />
fold | p. competente competent fold | p.<br />
compuesto compund fold | p. de arrastre drag<br />
fold | p. diapirico diapir fold | p. disarmonico<br />
disharmonic fold | p. echado overfold | p. en<br />
abanico deflujo fan fold | p. escanolado en<br />
Echelon fold | p. hacia abajo downfold | p.
inclinado inclined fold | p. incompetente<br />
incompetent fold | p. intraformacional<br />
intraformational fold | p. invertido overturned<br />
fold | p. isoclinal isoclinal fold | p. normal<br />
normal fold | p. parado upright fold, normal<br />
fold | p. recostado recumbant fold | p.<br />
recumbente recumbant fold | p. silla anticline |<br />
p. simetrico symmetric fold | p. simple simple<br />
fold | p. suprateneu supratenous fold | p.<br />
tumbado overturned fold | p. verdadero true<br />
fold, flexure | p. vertical upright fold | p.<br />
volcado overturned or inverted fold, overfold |<br />
p. yacente recumbent fold<br />
pliensbaquiano,-na adj Pliensbachian<br />
pliensbaquense nm Pliensbachian<br />
pliniano,-na adj Plinian<br />
pliocenico,-ca adj Pliocene<br />
plioceno,-na adj Pliocene | nm Pliocene<br />
pliomagma'tico,-ca adj pliomagmatic<br />
plisamiento nm micr<strong>of</strong>olding<br />
plomada nf plumb<br />
plombagina nf graphite<br />
plomifero,-ra adj lead-bearing, plumbiferous<br />
plomillo nm [Me*x] hematite rich tin ore<br />
plomilloso,-sa adj lead-bearing<br />
plomizo,-za adj leaden | p. de acarreo alluvial<br />
deposit <strong>of</strong> broken fragments <strong>of</strong> galena<br />
plomo,-ma adj lead colored | leaden<br />
plomo nm lead | lead ore, usually galena | p.<br />
abigarrado pyromorphite | p. afinado refined<br />
lead | p. agrio lead slag | p. amarillo wulfenite<br />
| p. blanco cerussite | p. corneo fosgenite | p. de<br />
obra [Me"x] argentiferous lead | p. dulce refined<br />
lead | p. negro graphite | p. pardo<br />
pyromorphite | p. pobre lead poor in silver | p.<br />
rico lead rich in silver | p. rojo crocoite | p.<br />
ronco [Arg, Ch, Pe] compact, massive argentite<br />
| p. verde pyromorphite<br />
plomogoma nf<br />
plomoso,-sa adj lead-bearing<br />
plumbagina nf graphite, plumbargo<br />
pliimbeo,-bea adj leaden<br />
plumbogumita nf plumbogummite<br />
pliunbopirocloro nm plumbopyrochlore<br />
plurivalencia nf polyvalence<br />
plutdn nm pluton, intrusion, intrusive | p.<br />
atectonico a tectonic pluton | p. pretectonico<br />
pretectonic pluton | p. post-tectonico post-<br />
tectonic pluton | p. sincronico syntectonic<br />
pluton | p. sintectonico syntectonic pluton | p.<br />
subsecuente post-tectonic pluton<br />
P-10<br />
plutonico,-ca adj plutonic, intrusive<br />
plutonio nm plutonium<br />
plutonismo nm plutonism<br />
plutonita nf plutonist<br />
pneumatolitico,-ca adj pneumatolytic<br />
poblacion nf population | p. cerrada closed<br />
population | p. de referenda parent population<br />
| p. estable stable population | p. estacionaria<br />
stationary population | p. madre parent<br />
population | p. tipo type population<br />
poblador nm [Me"x] mine foreman<br />
poblar vtr to set miners to work in a mine<br />
pobre adj barren, sterile, unmineralized | low<br />
grade<br />
pobreza nf poverty | p. de la mina said when ore<br />
grade is low<br />
pocero nm well sinker | shaft digger, pitman<br />
pocillo nm small well or drill hole | pass or<br />
shoot in a mine<br />
poder nm thickness | p. calorifico fuel ratio<br />
podolita nf carbonate-apatite<br />
podrido,-da adj rotten, decomposed<br />
podrir jaguas vtr [Col] to leave ores exposed to<br />
the atmosphere in the hope that the sulfides<br />
will thus be oxidized over time<br />
poiquilitico,-ca adj poikilitic<br />
poiquiloblastico,-ca adj poikiloblastic<br />
poiquil<strong>of</strong>itico,-ca adj poikilophitic<br />
poiquilotdpico,-ca adj poikilotopic<br />
poiquilotopo nm poikilotope<br />
polaridad nf polarity<br />
polarimetria nf polarimetry<br />
polarimetro nm polarimeter<br />
polarizacidn nf polarization<br />
polarizado,-da adj polarized<br />
polarizador,-dora adj polarizing | nm polarizer<br />
polen nm pollen<br />
polenita nf pollenite (obs, olivine phonolite)<br />
poliargirita nf poiyargyrite<br />
polibasita nf polybasite<br />
policiclico,-ca adj polycyclic<br />
policdnico,-ca adj polyconic<br />
policraso nm polycrase<br />
policristal nm poly crystal<br />
policromo,-ma adj polychrome, multicolored<br />
policuarzo nm polyquartz<br />
polidimita nf polydymite<br />
poligenetico,-ca adj polygenetic<br />
poligenico,-ca adj polycyclic | polygenic<br />
poligeosinclinal nm polygeosyncline<br />
poligonal adj polygonal
poligonizacidn nf polygonization<br />
polfgono nm polygon<br />
polihalita nf polyhalite<br />
polikinem£tico,-ca adj polykinematic<br />
polilitarenita nf polylitharenite<br />
polilitionita nf polylithionite<br />
polimerizacidn nf polymerization<br />
polimerizado,-da adj polymerized<br />
polimetalico,-ca adj polymetallic<br />
polimetamorfismo nm polymetamorphism<br />
polimignita nf polymignyte<br />
polimineralico,-ca adj polymineralic<br />
polimodal adj polymodal<br />
polimorfia nf polymorphism<br />
polimorfismo nm polymorphism<br />
polimorfo,-fa adj polymorphic, polymorphous |<br />
nm polymorph<br />
polinigritita nf polynigritite<br />
polisintetico,-ca adj polysynthetic<br />
politipismo nm polytypism<br />
politipo nm polytype<br />
polo nm pole | p. geogrdfico geographic pole | p.<br />
magnetico magnetic pole<br />
polonio nm polonium<br />
polucita nf pollucite<br />
polveo nm [Mex] amalgam formed by the cazo<br />
or caldron process composed <strong>of</strong> two parts<br />
mercury and one part silver by weight<br />
polvillo nm fine dust | tailings | [Mex] rich ore<br />
| p. buenogood ore | p. yjabon [Guanajuato,<br />
Mex] richest ore mined yielding about 2000<br />
ounces to the ton<br />
polvo nm dust | pinch | powder | oro en p. gold<br />
dust | p. de carbon coal dust | p. volcanico<br />
volcanic dust<br />
polvorilla nf argentite | polybasite | [Tamaya,<br />
Ch] phillipsite-bearing copper ore | [Peras,<br />
Mex] gold-bearing marcasite | estanodep.<br />
[Durango, Mex] friable, rhyolite hosted tin ore<br />
| [Pe] stephanite (but usually used for<br />
argentite or polybasite) | [Cerro de Pasco, Pe]<br />
sternbergite<br />
polio nm [Pe] small bag <strong>of</strong> rich ore given by a<br />
miner on Saturday to the mine owner<br />
pomaceo,-cea adj pumaceous<br />
pdmez adj and nm pumice<br />
ponce nm pumice<br />
pongo nm [Pe, EC] worker employed to<br />
maintain underground workings | canyon,<br />
gorge<br />
pontiano,-na adj Pontian<br />
p-11<br />
pontico,-ca adj Pontic<br />
pontiense adj Pontian<br />
populacidn nf [stats] population<br />
poquiri nm Indian required to work overtime<br />
on account <strong>of</strong> not fulfilling his tarea<br />
poercelainita nf porcellanite | mullite<br />
porcelana nf porcelain<br />
porcelana'ceo/-cea adj porcellaneous<br />
porcelanita nf porcellanite<br />
porcentaje nf percentage | rate | ratio<br />
purcentual adj percentage<br />
porfidico,-ca adj porphyritic<br />
porfidita nf porphyry, porphyrite<br />
pdrfido nm porphyry | [Vz] gold-bearing<br />
jasperoid | p. acanterado [Me"x] rhyolite<br />
porphyry | p. cuarcifero quartz porphyry | p.<br />
feldesdtico feldspar porphyry | p. granitico<br />
granite porphyry | p. metaltfero [Pachuca and<br />
Real del Monte, M£x] porphyritic pyroxene<br />
andesite host rock | p. negro [Almaden, Sp]<br />
melaphyre | p. traquito trachyte porphyry<br />
porfidoblastico,-ca adj porphyroblastic<br />
porfidoblasto nm porphyroblast<br />
porfiroclastico,-ca adj porphyroclastic<br />
porfirogranulitico,-ca adj porphyrogranulitic<br />
(obs)<br />
porfmco,-ca adj porphyritic<br />
porfirita nf porphyry, porphyrite<br />
pdrfiro nm porphyry<br />
porfiro-afanitico,-ca adj porphyro-aphanitic<br />
porfiroide adj porphyritic | porphyroid | nm<br />
porphyroid<br />
porfirotdpico,-ca adj porphyrotopic<br />
porfirizacidnn/[Mex] to pulverize ore<br />
poro nm pore | p. mural mural pore<br />
porosidad nf porosity | p. efectiva effective<br />
porosity | p. primaria primary porosity | p.<br />
secundaria secondary porosity | p. total absolute<br />
or total porosity<br />
porosimetro nm porosimeter | p. de mercurio<br />
mercury pump porosimeter<br />
poroso,-sa adj porous<br />
porra nf sledge<br />
porronguito nm [Pe] a crude mercury measure<br />
portal nm rock arch, natural arch<br />
portlandiano,-na adj Portland ian<br />
portlandiense adj Portland ian<br />
portdnde glaciar nm glacial outlet<br />
poruna nf [ Arg, Ch] pan used to wash gold<br />
posglacial adj Holocene | postglacial<br />
poskinematico,-ca adj posttectonic
posmagm£tico,-ca adh postmagmatic<br />
posmineral adj postmineral<br />
posobsecuente adj postobsequent<br />
posorogenico,-ca adj postorogenic<br />
pospaisnm hinterland<br />
postarrecife adj back reef<br />
postectdnico,-ca adj posttectonic<br />
post-litoral adj backshore<br />
postura nf [Pe] separation <strong>of</strong> silver from<br />
amalgam by distillation<br />
potam6geno,-na adj potamic<br />
potamologia nf potamology<br />
potasa adj potash | nf potash<br />
pota*sico,-ca adj potassic<br />
potasio nm potassium | p.-argon K-Ar | p.-calcio<br />
K-Ca<br />
potencia nf thickness | power | strength (<strong>of</strong> a<br />
vein) | p. de una prueba power <strong>of</strong> a test | p.<br />
nuclear nuclear power<br />
potential adj potential | nm potential | p.<br />
espontaneo spontaneous potential | p. nominal<br />
rated potential, rated production capacity | p.<br />
zeta zeta potential<br />
potenciometrico,-ca adj potentiometric<br />
potsdamiano,-na adj Potsdamian<br />
potsdamiense adj Potsdamian<br />
pottsvilliense adj Pottsvillian<br />
poza nf [Sandia, Pe] potholes in bedrock <strong>of</strong><br />
placer gold deposits<br />
pozaco nm [Cartagena, Sp] winze<br />
pozo nm well, drill hole | shaft, pit | p.<br />
abandonado abandoned well | p. artesiano<br />
artesian well | p. cdrstico yama | p. cerrado<br />
close in well | p. de alivio relief well | p. de<br />
avancada step-out well | p. de coyote natural<br />
water hole | p. de desarollo development well |<br />
p. de descarga disposal well | p. de<br />
descubrimiento discovery well | p. de mina shaft<br />
| p. de servicio service well | p. direccional<br />
directed well, slant well | p. dirigido directed<br />
well, slant hole | p. excavado dug well | p.<br />
exploratorio exploratory or wildcat well | p.<br />
eruptivo gusher | p. improductivo dry well,<br />
"duster" | p. inyector injection well | p. lateral<br />
flank well | p. marginal marginal well | p.<br />
muerto dead well (must be pumped to produce)<br />
| p. obligatorio obligation well | p. parado shut<br />
in well | p. pobre stripper well | p. salado salted<br />
well | p. seco dry hole | p. sin control wild well,<br />
well out <strong>of</strong> control | p. sin consentimiento de una<br />
parte non consent well | p. sin entubar open<br />
P-12<br />
well | p. subyacente well cutting accross several<br />
pools<br />
pozolano,-na adj pozzolan<br />
praseodimio nm praseodymium<br />
prasio nm green variety <strong>of</strong> quartz, prase<br />
prasdpal nm prasopal<br />
prasma nf dark green variety <strong>of</strong> agate<br />
praetigliense adj Praetiglian<br />
prealpino,-na adj prealpine<br />
precambriano,-na adj Precambrian<br />
preca"mbrico,-ca adj Precambrian<br />
precio nm price | p. de referenda posted price |<br />
p. de refineria refinery price, rack price | p.<br />
<strong>of</strong>icial posted selling price<br />
precioso,-sa adj precious<br />
precipicio nm precipice, cliff<br />
precipitacidn nf precipitation<br />
precipitado,-da adj precipitated<br />
precipitar ufr precipitate<br />
preconsolidacidn nf preconsolidation<br />
precursor nm preliminary seismic wave<br />
predazita nf predazzite<br />
prediagenesis nf prediagenesis<br />
predio minero nm mining property<br />
prefosa nf foredeep<br />
preorogenico,-ca adj preorogenic<br />
preparar minerales vtr to dress ores<br />
presa nf dam<br />
presentar vintr to show or display a<br />
characteristic (this verb is generally lost in<br />
translation, eg que presenta gradaciones entre<br />
granito y tonalita 'that grades from granite to<br />
tonalite')<br />
presentarse vpr to occur, be found, eg las rocas<br />
siluricas se presentan cerca de la mina 'Silurian<br />
rocks occur adjacent to the mine'<br />
preserver vtr to preserve<br />
presidn nf pressure | drive (in an oil or gas<br />
pool) | p. absoluta absolute pressure | p.<br />
atmosferica atmospheric pressure | p. cerrada<br />
closed pressure | p. deflujo fluid pressure,<br />
flowing pressure | p. dirigida directed pressure<br />
| p. efect'wa working pressure | p. estatica static<br />
pressure | p. hidrostatica hydrostatic pressure |<br />
a presion under pressure<br />
presupuesto nm cost estimate<br />
pretectdnico,-ca adj pretectonic<br />
pretilnm[Vz] cliff<br />
pretratamiento nm pretreatment<br />
previtriano nm previtrian<br />
priaboniano,-na adj Priabonian
prieto,-ta adj blackish, black, very dark |<br />
rebellious, refractory (ores)<br />
prima nf bonus | p. de petroleo oil bonus<br />
primario,-ria adj primary | nm Paleozoic<br />
primordial adj primordial, essential<br />
prisma nm prism<br />
prism£tico,-ca adj prismatic<br />
prismoide afj prismoidal | nm prismoid<br />
probabilidad nf probability | p. compuesto<br />
compound probability | p. conditional<br />
conditional probability | p. total total<br />
probability<br />
probado,-da adj proven, proved<br />
procedimiento nm process (industrial or<br />
chemical)<br />
proceso nm process | processing | p. aleatorio<br />
random process | p. armonico random process<br />
| p. autoregressivo autoregressive process | p. de<br />
Markov Markov process | p. discrete discrete<br />
process | p. estacionario stationary process | p.<br />
homogeneo homogenous process | p. numerico<br />
numeric process<br />
proclorita nf ripidolite<br />
produccidn nf production | p. anual annual<br />
production | p. de un pozo yield <strong>of</strong> a well | p.<br />
del yacimiento field or pool potential | p. diario<br />
daily production | p. mensual monthly<br />
production | p. permisible allowable production<br />
| p. permitida allowable production | p.<br />
potential draw down potential | p. rdpida<br />
gutting <strong>of</strong> a well | p. real actual production | p.<br />
regulada ratable take | p. suplementaria bonus<br />
allowable<br />
producirufr to produce<br />
productivo,-va adj productive | producing<br />
producto nm product, return, yield | material |<br />
product (result <strong>of</strong> an industrial or chemical<br />
process) | p. blanco white hydrocarbon<br />
products (gasoline, kerosene etc) | p. de<br />
eruption eruptive material | p. negro black<br />
hydrocarbon product (diesel, etc)<br />
productor nm producer | p. independiente<br />
independent producer<br />
pr<strong>of</strong>undidad nf depth | footage (<strong>of</strong> a well) |<br />
[Almaden, Sp] winze<br />
pro fund izar vtr to sink or deepen<br />
pr<strong>of</strong>undu,-da adj deep | poco p. shallow<br />
progradacidn nf progradation<br />
promedio nm average | middle<br />
prometeo,-tea adj promethium<br />
promontorio nm promontory, headland | [Me"x]<br />
P-13<br />
an irregular deposit or mass | p. fangoso mud-<br />
lump<br />
propano nm propane<br />
propilita nf propylite (obs porpylitized andesite)<br />
propilitizacidn nf propylitization<br />
proporci
pseudobrecha nf pseudobreccia<br />
pseudocirco nm pseudocirque<br />
pseudodorita nf swelling chlorite | septchlorite<br />
| pseudochlorite<br />
pseudocrisolita nf pseudochrysotile<br />
pseudocristal nm pseudocrystal<br />
pseudodifusidn nf pseudo-diffusion<br />
pseud<strong>of</strong>alla nf pseud<strong>of</strong>ault<br />
pseudomalaquita nf pseudomalachite<br />
pseudomatriz nf pseudomatrix<br />
pseudomontana nf pseudomountain<br />
pseudom6rfico,-ca adj pseudomorphous<br />
pseudomorfismo nm pseudomorphism<br />
pseudomorfo nm pseudomorph<br />
pseudonddulo nm pseudonodule<br />
pseudop<strong>of</strong>irico,-ca adj pseudoporphyritic<br />
pseudorutilo nm pseudorutile<br />
pseudosimetria nf pseudosymmetry<br />
pseudovolca'n nm pseudovolcano<br />
pseudowavelita nf crandallite<br />
psitacinita nf mottramite<br />
pteroceriano,-na adj Pterocerian<br />
pteroceriense adj Pterocerian<br />
pucha nf [Col] one sixteenth <strong>of</strong> an almud<br />
pudinga nf conglomerate<br />
pudrir jaguas vtr [Col] to leave ores exposed to<br />
the atmosphere in the hope that the sulfides<br />
will thus be oxidized over time<br />
puerciense adj Puercan<br />
puente nm bridge | plugging <strong>of</strong> a well | head<br />
frame <strong>of</strong> a mule whim | pillar (<strong>of</strong> ore in a<br />
mine) | p. natural natural bridge, arch<br />
puerta nf door, passage | [Me"x] hard rock or<br />
boulders that conceal a vein<br />
puerto nm pass, gap<br />
puesta en produccidn nf bringing in a well<br />
pulgada nf inch | pinch | p. de minero miner's<br />
inch | p. de oro en polvo pinch <strong>of</strong> gold dust<br />
pulimentacidn nf polishing (by wind or<br />
glaciers)<br />
pulimento nm polish | p. eolico desert polish | p.<br />
glaciar glacial polish<br />
pulperia nf company store at a mine<br />
pulsacidn nf [strat, tect] pulsation<br />
pumita nf pumice<br />
pumpeliita nf pumpellyite<br />
punta nf source | point | sharp end <strong>of</strong> a tool or<br />
instrument | work shift and hence, by<br />
extension, one-third <strong>of</strong> the mitayos assigned to<br />
P-14<br />
a particular mine<br />
puntero nm stonemason's chisel<br />
punterola nf small pick<br />
puntiagudo,-da adj pointed<br />
puntista nf [Me"x] miner who knocks down<br />
loose rock from a working face preparing the<br />
way for the next shift<br />
punto nm point | p. de burbuja or burbujeo<br />
bubble point pressure | p. de concensacion<br />
condensation point | p. de ebullicion boiling<br />
point | p. defluidez pour point | p. de imagen<br />
image point | p. de inflamacion flash point | p.<br />
de marca [surv] station | p. de niebla cloud point<br />
| p. de partida point <strong>of</strong> discovery <strong>of</strong> a vein, from<br />
which claim boundaries are measured | p. de<br />
referenda reference point | p. de rocio dew<br />
point | p. muerto break even point | p. nulo null<br />
point<br />
puntoagudo,-da adj taper pointed<br />
puntualo^' point<br />
pvmzdadj flame red<br />
punzdnnm gad<br />
puquio nm [Ch, Pe] spring | [Pe] narrow<br />
galleries driven by Indians or Jesuits to reach<br />
water-bearing strata | a natural outlet <strong>of</strong><br />
groundwater from gently dipping stata<br />
purbeckiano,-na adj Purbeckian<br />
purbeckiense adj Purbeckian<br />
pureza nf purity<br />
purga nf [Cartagena, Sp] charge <strong>of</strong> slag added<br />
after a charge <strong>of</strong> ore to clean out a lead<br />
smelting furnace<br />
purgar vtr to bleed <strong>of</strong>f | p. un pozo to blow a<br />
well<br />
puro,-ra adj pure, refined | native<br />
puro plateado nm [Pe] exceptionately high<br />
grade copper ore, essentially pure copper<br />
mineral<br />
purpureo,-rea adj purple<br />
purpurino,-na adj purple<br />
puruna nf long trough for vanning silver<br />
amalgam | [Pe] earthenware or wood disk<br />
used to test ore in the patio process <strong>of</strong><br />
amalgamating silver ores<br />
puzol nm pozzolana<br />
puzolana nf pozzolana<br />
puzolanico,-ca adj pozzolan
Q<br />
quebrada nf fissure or break in a rock | narrow<br />
pass | ravine, gorge, gully, draw, small valley<br />
| stream, brook | broken, uneven ground<br />
quebradizo,-za adj brittle, friable<br />
quebrado,-da adj broken, rough, uneven |<br />
bankrupt | ntn fraction | [Cu] channel between<br />
reefs<br />
quebrador ntn crusher | [Me"x] ore breaker, ore<br />
cobber<br />
quebradura nf fracture, break | crack, fissure |<br />
ravine | crushing | q. de dzalladura shear joint<br />
quebrantador,-dora adj crushing | nm stone<br />
crusher or breaker | tool used for breaking<br />
stone<br />
quebradora nf crusher | c\. de carbon coal<br />
breaker | c\. de cono cone crusher | c\. de<br />
mandtbula jaw crusher | c\. de quijadas jaw<br />
crusher | q. giratoria gyratory crusher<br />
quebraja nf break, crack<br />
quebrajar vtr to crack, split<br />
quebrantable adj brittle<br />
quebrantamiento nm breaking, breaking up,<br />
breakage, shattering<br />
quebrantar vtr to break | to crush | to split | to<br />
crack | to spall<br />
quebrantarse vpr to break, crack, split<br />
quebrantador nm stone crusher or breaker |<br />
tool used for breaking stone<br />
quebrantura nf ravine<br />
quebrar vtr to break | to cob ore | vintr to<br />
break<br />
quebrarse vpr to break, be broken<br />
quebrazdn de veta nm [Me"x] break in a vein<br />
quedada nf [Bol] voluntary overtime by contract<br />
workers<br />
quedar determinado vtr delineated in space<br />
queenstownita nf Darwin glass<br />
quelidonia nf chelidon<br />
quelonita nf pyrite or marcasite with a shape<br />
that resembles a tortise shell<br />
quema nf retorting <strong>of</strong> amalgam | burning,<br />
roasting | [Me"x] roasting <strong>of</strong> ore in the patio<br />
process <strong>of</strong> amalgamation <strong>of</strong> silver ore |<br />
[Guadalcazar, Mex] calcining <strong>of</strong> mercury ore in<br />
clay retorts<br />
quemadero nm [Mex] retort used to recover<br />
mercury from amalgam in the patio process <strong>of</strong><br />
amalgamating silver ores<br />
Q-l<br />
quemado,-da adj porcellaneous | nm<br />
porcellanite | gossan having a burnt<br />
appearance | [Mex] manganese oxide staining<br />
| any dark, cindery mineral staining that looks<br />
similar to manganese oxide<br />
quemador nm [Guadalcazar, M£x] calciner <strong>of</strong><br />
mercury ores<br />
quemahlita nf kemahlite (obs, pseudoleucitic<br />
micromonzonite)<br />
quemar vtr to roast or calcine ore | to retort<br />
amalgam | c\. piedra to heat a rock and then<br />
break it by plunging in cold water<br />
quemazdn nm outcrop | [Pachuca, M£x] silver<br />
ore in which native silver and silver chlorides<br />
are found in a matrix <strong>of</strong> manganese oxides<br />
queme nm retorting <strong>of</strong> amalgam or mercury ore<br />
| [Mex] roasting <strong>of</strong> ore in the patio process <strong>of</strong><br />
amalgamation <strong>of</strong> silver ore<br />
quenita nf kenyte (obs, olivine phonolitic<br />
trachyte)<br />
quentalenita nf kentallenite ( obs, augite-olivine<br />
monzonite)<br />
queramiquita nf keramikite (obs, cordierite<br />
hyalorhyolite)<br />
queramohalita nf alunogen<br />
querargira nf cerargyrite<br />
querargirita nf cerargyrite<br />
queratdfido nm keratophyre | q. cuardfero<br />
quartz keratophyre<br />
queratdfiro nm keratophyre<br />
queratoporfirita nf keratophyre | q. cuarzosa<br />
quartz keratophyre<br />
quercyita nf carbonate-hydroxylapatite<br />
quermesita nf kermesite<br />
querogeno nm kerogen<br />
querol nm kerol<br />
querosene nm kerosene<br />
queroseno nm kerosene<br />
queroteno nm kerotene<br />
quersantita nf kersantite<br />
Quersoneso nm Kertch<br />
quesenita nf kasenite (obs, pyroxene nepheline<br />
carbonatite)<br />
quesilita nf azurite<br />
queso nm [Mex] small cake <strong>of</strong> silver resulting<br />
from roasting <strong>of</strong> silver sulfides with litharge in<br />
a small clay furnace or vaso | [Cerro de Pasco,<br />
Pe] pressed cake <strong>of</strong> amalgam<br />
quespi nm [Pe] quartz<br />
quetenita nf botryogen<br />
quetzalcoatlita n/quetzalcoatlite
quetzalztli nm [Mex] transluscent green vareity<br />
<strong>of</strong> jade<br />
quevellita nf kvellite (obs, ultrabasite)<br />
quiastolita nf chiastolite<br />
quiebra nf fault fracture, break, fissure |<br />
breaking or crushing <strong>of</strong> ore | bankruptcy,<br />
failure<br />
quieselgurnm kieselguhr<br />
quijo nm gangue or matrix, generally quartzose<br />
| gold- or silver-bearing quartz | q. azucarado.<br />
[Hualgayoc, Pe] very finely crystalline, sugary<br />
quartz | q. de hierro gossan | q. podrido [Pe]<br />
porous quartz <strong>of</strong>ten containing gold<br />
quilatador nm assayer (<strong>of</strong> gold or silver)<br />
quilatar vtr to assay (gold or silver)<br />
quilate nm carat | a weight <strong>of</strong> 4 granos, the third<br />
part <strong>of</strong> a tomin \ orodelS quilates 18 carat gold<br />
quilaveita nf kilaueite (obs, olivine-magnetite<br />
basalt)<br />
quilita nf kylite (obs, olivine theralite)<br />
quilo nm kilo, kilogram<br />
quilogramo nm kilogram<br />
quilolino nm kiloline<br />
quildmetro nm kilometer<br />
quillo nm [Pe] pyrite<br />
quimbalete nm [Pe] large stone used in hand<br />
grinding <strong>of</strong> ore<br />
quimberlita nf kimberlite<br />
quimica nf chemistry | chemist | q. geologica<br />
geochemistry | q. inorgdnica inorganic<br />
chemistry | q. mineral inorganic chemistry | q.<br />
orgdnica organic chemistry<br />
quimico,~ca adj chemical | nm chemical | q.<br />
geologico geochemist<br />
quimismo nm chemism<br />
Q-2<br />
quincita nf quincite (pink sepiolite) | quinzite<br />
(rose-colored common opal)<br />
quine nm Kinne diabase (obs, olivine diabase)<br />
quintal nm hundredweight | a weight<br />
equivalent to 4 arrobas \ fifth part <strong>of</strong> 100 |<br />
[ Almaden, Sp] weight <strong>of</strong> ore found in an<br />
ordinary espuerta terrera \ q. metrico 100<br />
kilograms<br />
quintalaje nm [Ch] weight in quintals<br />
quintear vtr [Bol] to sort or cob ore by hand<br />
quiroguita nf [Sierra Almagrera, Sp] antimonial<br />
galena<br />
quirunavaarita nf magnetinite<br />
quiselgurnm kieselguhr<br />
quisqueita nf [Quisque, Pe] quisqueite (var<br />
asphalti te)<br />
quitar vtr to remove | to take away | to extract,<br />
separate | q. el mineral remove or extract ore |<br />
cj. las impurezas a un mineral separate waste<br />
from ore, concentrate ore<br />
quitarse vpr to be removed, taken away,<br />
extracted, separated<br />
quinto nm fifth | [Linares, Sp] one lead-<br />
smelting operation <strong>of</strong> a boliche furnace<br />
quinto real nm old <strong>Spanish</strong> colonial tax on<br />
mines originally set at a fifth or 20 percent, but<br />
later reduced<br />
quitina nf chitin<br />
quitinoso,-sa adj chitinous<br />
quitdnnm chiton<br />
quitzalitztli nm [Mex] a green, transluscent jade<br />
quivita nf kivite (obs, olivine-leucite basanite)
R<br />
rabdomancia nf rhabdomancy, dowsing<br />
rabidnnm rapids | riffle<br />
rabos nmpl [Antioqua, Col] silver-rich slimes<br />
from the final (third) settling-vat used for the<br />
treatment <strong>of</strong> tailings<br />
radiacidn nf radiation | r. defondo background<br />
radiation | r. gamma gamma radiation<br />
radiactividad nf radioactivity<br />
radiactivo,-va adj radioactive<br />
radiado,-da adj radiate<br />
radial adj radial<br />
radioactivacidn nf radioactivation<br />
radioactividad nf radioactivity<br />
radioactivo,-va adj radioactive,<br />
radiocoloide nm radiocolloid<br />
radiodetector nm water monitor (for<br />
radioactivity)<br />
radioge"nico,-ca adj radiogenic<br />
radiohidrologia nf radiohydrology<br />
radiolario nm radiolarian<br />
radiolisis nf radiolysis<br />
radiolitico,-ca adj radiolitic<br />
radioluminiscencia nf radioluminescence<br />
radiom£trico,-ca adj radiometric<br />
radioquimica nf radiochemistry<br />
radioquimismo nm radiometrics<br />
raedera nf semicircular rake used for collecting<br />
ore<br />
rafa nf subsidence<br />
raiz nm root<br />
raja nf cut | crack, split<br />
rajado,-da adj split cracked | [Bol] stoped<br />
rajadura nf fissure, crack, split<br />
rajar vtr to split, crack | [Bol] to extract blockedout<br />
ore, stope<br />
rajarse vpr to split, crack<br />
rajo nm [Bol] block (<strong>of</strong> ore in a mine) | stope |<br />
shallow open cut | r. abierto glory hole | r. al<br />
sol glory hole<br />
rama nf branch | branch vein | principal gallery<br />
in a mine<br />
ramada nf branches<br />
ramaje nm collection <strong>of</strong> branches<br />
ramal nm secondary branch | secondary gallery<br />
in a mine | branch or <strong>of</strong>fshoot <strong>of</strong> a vein<br />
ramalearse vpr to split <strong>of</strong>f, branch <strong>of</strong>f<br />
ramaleo nm [Guanajuato, Mex] irregular,<br />
twisted veins <strong>of</strong> quartz and calcite<br />
R-l<br />
rambla nf rambla, a dry ravine or bed <strong>of</strong> an<br />
ephemeral stream | sandy place | ground<br />
covered with sand after floods<br />
rameo nm [Ch] zone <strong>of</strong> disseminated copper<br />
ores that separates richer ores<br />
ramificackm nf division <strong>of</strong> a vein into branches<br />
ramificado,-da adj branching, braided<br />
ramificarse vpr to split up into or divide into<br />
branches, to branch, to feather out<br />
ramita de fildn nf branch or leader vein<br />
ramito nm stringer<br />
ramiza nfpl branches<br />
ramo nm small branch | branch <strong>of</strong> a vein<br />
ramosita nf scoria<br />
raxnpa nf working face | ascent | [struc] ramp |<br />
slope<br />
rampla nf ramp, shallow incline<br />
rampl6n,-ona adj upright<br />
ramsayita nf lorenzenite<br />
rancholabreiense adj Rancholabrean<br />
ranquilita nf haiweeite<br />
ranura nf groove | r. de deslizamiento striae<br />
rana nf fanglomerate | [Sp] alluvial deposits <strong>of</strong><br />
Villafrankian age<br />
rapasa nf any easily worked stone<br />
rapidez nf rate | r. de crecimiento growth rate<br />
rapido nm rapids<br />
rasa nf high mountain plain | r. costera coastal<br />
plain<br />
rascar vtr to rework the surface <strong>of</strong> an<br />
abandoned mine<br />
rasgo nm characteristic, feature, trait | [Me"x]<br />
length <strong>of</strong> underground workings along the<br />
strike <strong>of</strong> a vein<br />
raspador nm [Mex] miner who works the<br />
surface <strong>of</strong> a vein or deposit,<br />
raspadura nf streak | scrapings<br />
raspar vtr to abrade | to scrape | to clean up an<br />
arrastre \ [Bol] to clean up any ore remaining in<br />
old workings<br />
raspinar vtr [Bol] to clean up any ore remaining<br />
in old workings<br />
rasposo nm [Comanja, Mex] native silver<br />
rastro nm track, trace<br />
ratonera nf [Bol] dog-hole, coyote-hole, rat-hole<br />
or any other shallow working <strong>of</strong> little<br />
consequence<br />
rauda nf rapids<br />
rauraciano,-na adj Rauracian<br />
rauraciense adj Rauracian<br />
rayado,-da adj striped, banded
ayano,-na adj bordering, adjacent<br />
rayo nm ray | r. gamma gamma ray | r. x X-ray<br />
razon nm ratio | rate | r. de correlacion<br />
correlation coefficient | r. de verosimilitudes<br />
likelihood ratio<br />
reaccidn nf reaction | r. esotermica exothermic<br />
reaction<br />
reaccionar vintr to react<br />
reacondicionar vtr to workover (a well)<br />
reactivacidn nf reactivation<br />
reactivo,-va adj reactive | nm reagent<br />
real nm [Me"x] mining district, traditionally<br />
consisting <strong>of</strong> at least six operating mines and<br />
four reduction works adjacent to a town<br />
governed by the appropriate civial authorities<br />
| coin used in colonial <strong>Spanish</strong> America equal<br />
to 1 /4 <strong>of</strong> a peseta or 25 centimes | r. de<br />
fontanero measure <strong>of</strong> the rate <strong>of</strong> water flow | r.<br />
de aro [Col] a weight, equivalent to a half a<br />
tomin and 1/16 a castellano<br />
realce nm any working face that is raised above<br />
haulage ways | r. lateral overhand stoping<br />
realizar vtr [Bol] to classify ores prior to<br />
selective mining<br />
reavance nm readvance<br />
rebajar vtr to stope underhand<br />
rebaje nm butting against | cut | r. de cabeza<br />
overhand stope | r. descendente underhand<br />
stope<br />
rebajo nm [Mex] working <strong>of</strong> a mineral deposit |<br />
r. del cielo overhand stoping | r. lateral<br />
underhand stoping<br />
rebanada nf a slice <strong>of</strong> mineral or rock<br />
rebanado nm slicing (in mining)<br />
rebosdadero nm [Ch] isolated, irregular pocket<br />
<strong>of</strong> ore | [Pe] gold placer<br />
rebotallero nm [Mex] person who scavenges<br />
dumps for ore<br />
reciente adj recent<br />
recincho nm [Villanueva del Rio, Sevilla, Sp]<br />
pyrite-bearing, fine-grained sandstone partings<br />
found in coal beds<br />
recial nm rapids<br />
reciclaje de gas nm cycling <strong>of</strong> gas<br />
recincho nm [Sevilla, Sp] pyritiferous sandstone<br />
occurring in coal seams<br />
recio,-ia adj coarse | nm [Sierra Almagrera, Sp]<br />
highest grade ore<br />
recobro nm recovery (expressed in percent)<br />
recodo nm river bend<br />
recoger vtr to collect | to gather or collect ores<br />
R-2<br />
recolectar vtr to collect<br />
recompresion nf repressuring (an almost<br />
depleted well)<br />
reconcentrado nm [Mex] concentrate<br />
reconcentrar vtr to concentrate<br />
recongelacion nf refreezing<br />
reconocer vtr to search or explore for mineral<br />
deposits | to prospect<br />
reconociendo nm prospecting, exploration<br />
reconocimiento nm exploration, prospecting,<br />
search | reconnaissance<br />
reconsecuente adj reconsequent, resequent<br />
reconstructivo,-va adj recontructive<br />
recorrer vtr to traverse<br />
recorrimiento nm [surv] traversing<br />
recorte nm [Bol] cross-cut<br />
recostado,-da adj recumbant<br />
recostar vintr to dip<br />
recristalizacion nf recrystallization<br />
rectificacion nf rectification | correction <strong>of</strong> a<br />
mining claim<br />
rectilineo,-nea adj rectilinear<br />
recto,-ta adj straight<br />
recubrimiento nm covering<br />
recuesto nm inclination or dip | slope<br />
recumbente adj recumbent<br />
recuperacion nf recovery (<strong>of</strong> ore etc.) | r.<br />
secundaria secondary recovery<br />
recurso nm resource | r. no renewable<br />
nonrenewable resource<br />
rechazo nm fault <strong>of</strong>fset or displacement | r.<br />
horizontal horizontal displacement | r. vertical<br />
vertical displacement, throw<br />
red nf network, stockwork | crystal structure |<br />
r. alveolar network | r. atomica atomic structure<br />
| r. cristalogrdfica crystal structure | r. de<br />
fracturas fracture network | r. de iones ionic<br />
structure | r. filoniana stockwork<br />
redenominado,-da adj renamed<br />
redeposicion nf redeposition<br />
redepositado,-da adj redeposited, reworked<br />
redepositar vtr to redeposit<br />
redeposito nm redeposition<br />
rediferenciacidn nf redifferentiation<br />
redoma nf laboratory flask<br />
redondeado,-da adj rounded<br />
redondez nf round ness<br />
redoniense adj Redonian<br />
redoxomdrfico,-ca adj redoxomorphic<br />
redruthita nf chalcocite<br />
reduccidn nf reduction | r. de escorias slag
fuming (reduction <strong>of</strong> zinc oxide in lead slag)<br />
reducir vtr [chem] to reduce<br />
reductor,-tora adj reducing | nm reducing<br />
agent reducer<br />
reempiazamiento nm replacement<br />
reemplazar vtr to replace<br />
reempiazo nm replacement<br />
reentrante adj reentrant | nm reentrant<br />
refinado,da adj refined | r. alfuego fire refined<br />
reflnadura nf refining<br />
refinar vtr to refine<br />
refineria nf refinery | r. petrolifera oil refinery<br />
refino nm refinery | refining<br />
reflectancia nf reflectance<br />
reflejado,-ja adj reflected<br />
reflejo,-ja adj reflected | nm fluorescence <strong>of</strong><br />
petroleum, "bloom"<br />
reflexion nf reflection | r. fantasma ghost<br />
reflection<br />
reflujo nm ebb tide | reflux<br />
refoga nf [Pe] retort used for vaporizing<br />
mercury from amalgam<br />
refogar vtr [Pe] to retort amalgram<br />
refoliacidn nf refoliation<br />
reformacidn nf reformation (petroleum<br />
products)<br />
reformar vtr to reform (petroleum products)<br />
refraccidn nf refraction | r. de clivaje cleavage<br />
refraction | r. del crucero cleavage refraction |<br />
r. de la esqiustocidad cleavage refraction | r.<br />
doble double refraction<br />
refractar vtr to refract<br />
refractario,-ria adj refractory | nm refraction<br />
refractivo,-va nm refractive<br />
refractometria nf refractometry<br />
refractdmetro nm refractometer<br />
refringencia nf refractivity, refringence<br />
refringente adj refringent<br />
refringir vtr to refract<br />
refugiense adj Refugian<br />
regadura nf undercutting, undermining, holing<br />
| undercut<br />
regato nm pool | stream<br />
regatdn nm [Col] kind <strong>of</strong> chopper used in<br />
washing gold<br />
regelacidn nf regelation<br />
regenerado,-da adj regenerated<br />
regente nm [Bol] mine foreman<br />
region nf region | r. abisal abyssal area | r.<br />
adiabatica adiabatic region | r. asismica aseismic<br />
region | r. de ablation ablation area | r. de<br />
R-3<br />
aceptacion acceptance region | r. de hundimiento<br />
graben | r. de rechazo rejection region<br />
registracidn nf [maps] registration<br />
registrar vtr to file, to register (a mining claim)<br />
registro nm record | log | logging | r. acustico<br />
acoustic log | r. de pozo well log | well logging<br />
| r. electrico electric log<br />
regla nf rule | pattern | [surv] rod used in<br />
measuring base <strong>of</strong> triangulation | r. de calculo<br />
slide rule<br />
regldn nm [surv] vertical measuring rod<br />
regmatico,-ca adj regmatic<br />
regola nf undercut<br />
regolita nf regolith<br />
regradacidn nf regradation<br />
regresionn/fstrat, stats] regression | r. lineal<br />
linear regression | r. polinomica polynomial<br />
regression<br />
regresivo,-va adj regressive<br />
reguero nm undercut<br />
regular adj average, usual, normal<br />
rehabilitacidn nf rehabilitation, reopening (<strong>of</strong><br />
mines, workings, etc.)<br />
rejalgarnm realgar<br />
rejilla nf ripple<br />
rejuvenado,-da adj rejuvenated<br />
rejuvenecimiento nm rejuvenation<br />
relacidn nf ratio, proportion | rate | r. de<br />
actividad activity ratio | r. gas/petroleo gas oil<br />
ratio<br />
relacionado,-da adj allied<br />
relajacidn nf relaxation<br />
relativo,-va adj relative<br />
relaves nmpl residues remaining after washing<br />
<strong>of</strong> placer ores | second washing <strong>of</strong> ore | tails<br />
relece nm [Col] ore left behind in former<br />
workings as unpr<strong>of</strong>itable<br />
relevamiento nm topographic survey<br />
relevar vtr to take topography<br />
relicto,-ta adj relict<br />
relieve nm relief | r. de erosion erosional relief |<br />
r. estructural structural relief | en r. in relief<br />
reliquia nf relict<br />
reliz nm [Mex] wall-rock separating branches <strong>of</strong><br />
a vein | bounding plane between wall rock and<br />
ore<br />
reluciente adj clear | [Mex] finely crystalline<br />
(said <strong>of</strong> galena)<br />
relumbroso,-sa adj shining, glistening<br />
relleno nm filling | filler | backfill (in a mine) |<br />
rellena defisura fracture filling
emanso nm pool <strong>of</strong> still water | backwater<br />
remate nm pinch out, thinning or wedging out.<br />
remocidn nf denudation<br />
remolenita nf atacamite<br />
remolino nm whirlpool, eddy, swirl | pocket,<br />
mass or bunch <strong>of</strong> ore | [Pampa de Nevar, Pe]<br />
supergene ores consisting <strong>of</strong> native gold and<br />
silver spun together like thread or wire<br />
rendicidn nf yield<br />
rendimiento nm yield, return | product, output<br />
| daily production rate for oil and /or gas wells<br />
| r. de un pozo yield <strong>of</strong> a well<br />
rendir vintr to yield | to produce<br />
renglonadura nf ruled lines | nfpl ruling<br />
reniforme adj reniform, kidney-shaped<br />
renio nm rhenium | r.-osmio rhenium-osmium<br />
renta nf income | rent | interest, return | r. neta<br />
de amortization decredente net income for<br />
depletion allowance | a r. on lease<br />
rentabilidad nf pr<strong>of</strong>itability<br />
rentable adj pr<strong>of</strong>itable<br />
renter vtr to yield, produce | to let, rent<br />
reoignimbrite nf rheoignimbrite<br />
reologia nf rheology<br />
reoldgico,-ca adj rheologic<br />
reomdrfico,-ca adj rheomorphic<br />
reomorfismo nm rheomorphism<br />
reotropismo nm rheotropism<br />
repacho nm slope<br />
repartemiento nm allotment <strong>of</strong> mitayos to a mine<br />
or mill<br />
reparto de la demanda nm prorationing<br />
repasiri nm minga employed to mix, ladle and<br />
trod ore in the patio process <strong>of</strong> amalgamation<br />
<strong>of</strong> silver ores<br />
repecho nm declivity, slope<br />
repeticidn nf repeatability<br />
repetido,-da adj repeated<br />
repettiense adj Repettian<br />
replica de un terremoto nf aftershock,<br />
represa nf dam | r. para colas tailings dam<br />
representecidn de un registro nf [seis] play back<br />
reproduccidn nf reproductibility<br />
reptecidn nf creep | r. del suelo soil creep<br />
reptente adj creeping<br />
requiebro nm crushing <strong>of</strong> ores after exploitation<br />
| [Almaden, Sp] medium grade mercury ore<br />
resaca nf wave recession, backwash | resaca, a<br />
long narrow, meandering lake in the bed <strong>of</strong> a<br />
former stream channel<br />
resalto nm rebound<br />
R-4<br />
resbaladero nm ore chute<br />
resbalado,-da adj overlapping<br />
resbalamiento nm overlapping<br />
resbalarse vpr to run side-by-side (as for veins)<br />
resbalo nm hill with steep slopes | abrupt slope<br />
resbaldnnm overlapping | landslide | fault<br />
rescater vtr [Me"x] to buy ore<br />
rescate nm [Mex] tribute <strong>of</strong> gold demanded <strong>of</strong><br />
native peoples by the conquering <strong>Spanish</strong> |<br />
public sale <strong>of</strong> ore<br />
rescatin nm person who buys ore from Indians<br />
in small lots<br />
reseco nm [Santa Eulalia, M
estita nf restite<br />
resto nm residue<br />
restringido,-da adj restricted<br />
restringir vtr to restrict, limit<br />
resumennm abstract<br />
resumidero nm [Guerrero, Mex] limestone cave<br />
or cavern<br />
resurgencia nf resurgence<br />
resurgente adj resurgent<br />
retardacidnn/[cryst] retardation<br />
retencidn nf retention<br />
retenido,-da adj retained<br />
reticulado,-da adj reticulate, reticulated,<br />
resembling a network | en reticulado.<br />
stockwork<br />
reticular ad;' net-like<br />
reticulo nm lattice<br />
retiano,-na adj Rhaetian<br />
retiense adj Rhaetian<br />
retinasfalto nm retinasphalt<br />
retinita nf retinite | pitchstone<br />
retorta nf retort<br />
retroceso nm recession<br />
retrodiagenesis nf hypergenesis<br />
retrogradacidn nf retrogradation<br />
retrogrades-da adj retrograde<br />
retrogresidn nf retrogression<br />
retrogresivo,-va adj retrogressive<br />
retrometamorfismo nm retrogressive<br />
metamorphism<br />
retroplaya nf backshore<br />
retuerta nf bend in a river<br />
retziano nm Retzian<br />
revenidero nm rock altered by infiltration <strong>of</strong><br />
surface or underground water<br />
revenimiento nm subsidence | cave-in<br />
reventadero nm rough, uneven ground |<br />
outcrop<br />
reventazdn nm [Me"x] outcrop<br />
reventdn nm mass <strong>of</strong> fine native silver | outcrop<br />
reverberacidn nf calcination or roasting in a<br />
reverberatory furnace<br />
reverberante adj reverberatory<br />
reverberar vtr to roast (ore)<br />
revisador nm worker who examines ore<br />
separated by miners<br />
revolcar vtr [Bol] to rework (old dumps, etc.)<br />
revoltura nf [Mex] mixing ore with flux for<br />
smelting<br />
rezaga nf ore left in a mine<br />
rezagado,-da adj [M£x] piled up, heaped<br />
R-5<br />
rezago nm ore left in a mine | [Bol, Pe] fee paid<br />
to avoid the mlta or to avoid having to replace<br />
mitayos or mingas under one's charge who have<br />
fled<br />
rezumir vtr to ooze, exude | to percolate | vintr<br />
to seep, ooze<br />
rezumirse vpr to ooze, seep<br />
rhodaniense adj Rhodanian<br />
ria nf ria, creek | mouth <strong>of</strong> a river | estuary<br />
riacolita nf sanidine<br />
riachuelo nm rivlet<br />
riazaniense adj Ryazanian<br />
riatillo nm rivlet<br />
ribazo nm mound, hillock, sloping bank<br />
ribera nf river bank (usually steep) | seashore |<br />
r. alta high bank | undercut stope j r. playa flat<br />
bank, slip-<strong>of</strong>f slope<br />
TLCOf-CAadj rich<br />
riego nm [Col] float derived from a mineral<br />
deposit<br />
riel nm small ingot or bar <strong>of</strong> metal<br />
rielado,-da adj reduced to ingots<br />
rielera nf ingot mold<br />
riesgo nm risk<br />
rifle nm riffle<br />
rigidez nf rigidity<br />
rimaya nf bergschrund, crevasse<br />
rimero nm heap, pile | string <strong>of</strong> gads<br />
rimpilita nf rimpylite<br />
rincdn nm inside corner | nook | open-ended<br />
basin on a mountain | square-cut recess or<br />
hollow in a cliff or reentrant in the borders <strong>of</strong> a<br />
palteau or mesa | small secluded valley |<br />
inside bend <strong>of</strong> a stream<br />
rinkita nf mosandrite<br />
rinkolita nf mosandrite<br />
rinon nm kidney-shaped mass <strong>of</strong> ore, nodular<br />
ore | wood tin | point at which the ore in a<br />
mine becomes abundant<br />
rio nm river | r. ancho stream | r. inadaptado<br />
misfit river<br />
rioandesita nf rhyoandesite<br />
riocristal nm rhyocrystal<br />
riodacita nf rhyodacite<br />
riodiabasico,-ca adj rhyodiabasic<br />
riolita nf rhyolite<br />
riotaxftico,-ca adj rhyotaxitic<br />
ripio nm rubble | spalled rock or ore | small<br />
ores or fines | drill cutting | residue | gravel |<br />
[Col] spalled ore | [Ch] residue left from<br />
evaporating caliche
iqueza nf riches | richness | nfpl wealth | r.<br />
fosilifera fossil content<br />
risco nm crag, cliff, escarpment | [Mex] bull<br />
quartz | [Villanueva del Rio, Sp] country rock<br />
ritmico,-ca adj rhythmic<br />
ritmita nf rythmite<br />
rizadura nf ripple | ripple mark | r. asimetrica<br />
asymmetric ripple | r. conjugada compound<br />
ripple | r. de cauce ripple scour | r. de<br />
interferencia cross ripple | r. de resaca backwash<br />
ripple | r. incampleta star ripple | r. linguloide<br />
cuspate or linguloid ripple | r. regresiva<br />
regressive ripple | r. simetrica symmetric ripple<br />
| r. transoersa transverse ripple<br />
robado,-da adj robbed (as for pillars) | [Col]<br />
showing signs <strong>of</strong> having been worked before<br />
robin nm rust<br />
robusto,-ta adj robust<br />
roca nf rock | r. abisal abyssal rock | r.<br />
abarregada roches moutonees | r. acida acid<br />
rock | r. alcalina alkaline rock | r. alcalinocaldca<br />
calcalkaline rock | r. almacen reservoir rock | r.<br />
amigdaloide amygdaloid rock | r. amorfa<br />
amorphous rock | r. asquistica aschistic rock |<br />
r. autigena authigenic rock | r. basica basic rock<br />
| r. calcdrea calcareous rock | r. carbonatada<br />
carbonate rock | r. cldstica clastic rock | r. de<br />
anhidrita anhydrock | r. de caja wall rock | r. de<br />
contacto contact metamorphosed rock | r.<br />
cristalina crystalline rock | r. de cubierta cover<br />
rock | r. de espaldos country rock | r. de nabos<br />
laterite | r. del lugar country rock | r. efusiva<br />
extrusive rock | r. encajante wall rock | r.<br />
eruptiva igneous rock | r. esquistosa schistic<br />
rock | r. esteril barren rock | r. estratificada<br />
stratified rock | r. extrusiva extrusive rock | r.<br />
filoniana dike rock | r. fragmentosa clastic rock |<br />
r. hialina volcanic glass | r.-hongo \ r.<br />
intermediaria intermediate rock | r. intrusiva<br />
intrusive rock | r. madre gangue | source rock<br />
| r. magmatica magmatic rock | r. maleta<br />
suitcase rock | r. metamarfica metamorphic<br />
rock | r. muerta bedrock (placers) | r. pelitica<br />
pelitic rock | r. picada crushed stone | r.<br />
plutonica plutonic rock | r. productiva reservoir<br />
rock | r. redpiente reservoir rock | r. salina<br />
evaporite | r. sedimentaria sedimentary rock |<br />
r. silicea silicic rock | r. superficial volcanic rock<br />
| r. intrea volcanic glass | r. vecina country<br />
rock, wall rock | r. verde greenstone | r. viva<br />
unaltered rock | r. volcdnica volcanic rock | r.<br />
R-6<br />
zoogena organic rock<br />
rocalita nf rockallite (obs, alkalic granite)<br />
rocalla nf rubble, talus | stone chippings |<br />
striated pebble<br />
rocalloso,-sa adj rocky, rubbly | stony<br />
rocoso,-sa adj rocky, rubbly | stony<br />
rodado,-da adj round | nm float | gravel<br />
rodesita nf rhodesite<br />
rodio nm rhodium<br />
rodita nf rhodite | diogenite<br />
rodizita nf rhodizite<br />
rodocrosita nf rhodocrosite<br />
rodolita nf rhodolite<br />
rodonita nf rhodonite<br />
rodostannita nf rhodostannite<br />
rodusita nf rhodusite<br />
roedura nf erosion | corrosion, attrition<br />
roela nf round piece <strong>of</strong> crude gold or silver<br />
roeperita nf roepperite<br />
toervtr to erode<br />
roeslerita nf roesslerite, rosslerite<br />
rogianita nf roggianite<br />
rojizo,-za adj reddish<br />
rojo,-ja adj red | nm red | r. blanco white heat |<br />
r. cereza cherry red<br />
rombal adj rhombic<br />
rdmbico,-ca adj rhombic<br />
rombiforme adj rhombic<br />
rombododecaedro nm rhombic dodecahedron<br />
romboedrico,-ca adj rhombohedral<br />
romboedro nm rhombohedron<br />
romboidal adj rhomboidal, diamond-shaped<br />
romboide nm rhomboid<br />
romboideo,-dea adj rhomboid<br />
rompeolas nm wave breaker, breakwater<br />
rompepiedras nm stone crusher<br />
romper vtr to break, crush | to pierce,<br />
penetrate, break through<br />
rompiente nm breaking | breaker | reef, shoal<br />
rompimiento nm communication between any<br />
two parts <strong>of</strong> a mine | breaking througj<br />
ronguero nm [Pe] ore carrier who uses a capacho<br />
roqueda nf rocky place<br />
roquedal nm rocky place<br />
roquedo nm crag, rock<br />
roqueno,-na adj rocky<br />
rosa adj pink | nf rose diamond | rose, rosette<br />
| r. de diadasas joint rose or rosette<br />
rosado,-da adj pink, rosy, rose-colored<br />
rosario nm chain | en rosario en echeldn<br />
roseta nf rosette copper
osiclernm bright rosy color | ruby silver<br />
(proustite-pyrargyrite) | r. claro proustite | r.<br />
de cobre cuprite | r. negro stephanite | r. oscuro<br />
pyrargyrite<br />
rosolita nf landerite<br />
rosterita nf vorobyevite<br />
rotacidn nf rotation<br />
rotacional adj rotational<br />
rotativo,-va adj rotary<br />
rotatorio,-ria adj rotary<br />
rotoinversidn nf rotoinversion<br />
rotoreflexidn nf rotoreflection<br />
rdtulo nm tag<br />
roza nf undercutting | [Cu] land measure <strong>of</strong><br />
about 1.2 acres<br />
rozadora nf coal cutting machine<br />
rozadura nf undercut<br />
rozar vtr to undercut, cut away<br />
rubelita nf rubellite (variety <strong>of</strong> tourmaline)<br />
rubeo,-bea adj reddish<br />
rubi nm (pi rubies) ruby | r.balaje balas ruby | r.<br />
de bohemia rose quartz | r. de estano red<br />
crystalline variety <strong>of</strong> cassiterite | r. del brasil<br />
red topaz | r. del cabo Cape ruby | r. espinela<br />
spinel ruby | r. estrellado star ruby | r, oriental<br />
corundum. | r. rosado balas ruby<br />
rubial nm [Cartagena, Sp] siliceous, magnesium<br />
bearing partings in iron ore<br />
rubidio nm rubidium | r.-estroncio rubidium-<br />
strontium<br />
rubinblenda nf rubinblende<br />
rubio nm limonite | brown hematite<br />
rubornm bright red<br />
rugosidad nf rugosity<br />
rugoso,-sa adj rugose, wrinkled<br />
rumbadero nm ore shoot<br />
rumbeador nm [Me"x] prospector<br />
rumbo nm strike | direction | r. del buzamiento<br />
dip direction<br />
rumbdn nm weathering<br />
runita nf graphic granite<br />
rupeliano,-na adj Rupelian<br />
rupeliense adj Rupelian<br />
ruptura nf rupture | r, de pendiente break in<br />
slope<br />
rusciniense adj Ruscinian.<br />
rutenarsenita nf ruthenarsenite<br />
ruteniridosmina nf rutheniridosmine<br />
rutenio nm ruthenium<br />
rutenosmiridio nm ruthenosmiridium<br />
rutilado,-da adj rutilated<br />
rutilo nm rutile<br />
R-7
saaliense adj Saalian<br />
sa'bado nm a piece <strong>of</strong> high grade ore, <strong>of</strong> the sort<br />
that Mexican miners were once permitted to<br />
search for on the mine dumps each Saturday (el<br />
sabado) or might otherwise help themselves to<br />
on any other day <strong>of</strong> the week<br />
sabana nf savannah | a placer mine located<br />
above water, on the banks <strong>of</strong> a river<br />
sabanalamar nm [Col] low-lying area frequently<br />
flooded by the sea<br />
sabanazo nm [Col] small stretch <strong>of</strong> flat land<br />
sabanera nf diorite<br />
sabiniense adj Sabinian<br />
sabldn nm coarse sand<br />
sa'bulo nm fine gravel<br />
sabuloso,-sa adj sandy, gritty, arenaceous,<br />
sabulous, sabulose, sabuline<br />
saca nf extraction, taking out, withdrawl,<br />
removal <strong>of</strong> ore, etc. | [Bol] drill cuttings<br />
sacador nm sampler | s. de muestras sampler,<br />
sampling device<br />
sacamuestras nfpl sampler, sampling device |<br />
core barrel | s. defondo bottom sampler | s. de<br />
pared side wall sampler<br />
sacanucleo nm core barrel | s. de pared wall<br />
sampler<br />
sacar vtr to extract, take out, remove ores, etc.<br />
sacatestigo nm core barrel<br />
saco nm sack | s. de ixtle. sack made from the<br />
fibre <strong>of</strong> the lechaguilla plant that holds 5 to 6<br />
arrobas <strong>of</strong> ore | de s. or en s. irregular, sack-like<br />
sacudida nf shaking | s. stsmica earthquake<br />
saetin nm chute, headrace, flume<br />
sagenitico,-ca adj rutilated, sagenitic<br />
saheliano,-na adj Sahelian<br />
saheliense adj Sahelian<br />
sajoniano,-na adj Saxonian<br />
sajdnico,-ca adj Saxonian<br />
sajoniense adj Saxonian<br />
sajonita nf saxonite<br />
sakmariense adj Sakmarian<br />
sal nf salt | s. amarga epsomite | s. blanca<br />
washed salt | s. comun rock salt, halite | .s. de<br />
agua salt crystallized from water | s. de l^-co<br />
porous, impure rock salt | s. de compds sock<br />
salt | s. de corazon. pure, nonporous salt | s. de<br />
desecho salts such as kieserite, sylvanite,<br />
carnalite, kainite and polyhalite that were once<br />
S-l<br />
considered worthless | s. de desescombro beds <strong>of</strong><br />
potassium and magnesium salts | s. de garza<br />
rock salt intermediate in purity and porosity<br />
between s. de barca and s. de corazon \ s. de<br />
manantiales brine salt j s. de roca rock salt | s. de<br />
tierra impure salt found in dried lake beds | s.<br />
dura salts <strong>of</strong> the sylvite group, e.g. sylvite,<br />
kieserite and halite | s. gema sock salt, halite |<br />
s. gorda or en grumos clotty salt evaporated<br />
from brine | s. marina sea salt | s. pedres or<br />
piedra rock salt | s. potasica potassium salt | s.<br />
principal carnalite, kieserite and halite | s. roja<br />
unwashed salt<br />
salacuifer nm saline aquifer<br />
salada nf [US] salt covered plain where a lake<br />
has evaporated<br />
saladar nm salt marsh | pool filled with tide or<br />
flood waters in which salt deposits are formed<br />
by evaporation | dry lake, salar<br />
salado,-da adj saline, salty, salt<br />
salar nm saline lake deposits consisting largely<br />
<strong>of</strong> evaporites and brines | salt marsh | salt flat<br />
| salting <strong>of</strong> a mine or prospect<br />
salazdn nm [Arg] salinity<br />
salbanda nf thin layer <strong>of</strong> clay between a vein<br />
and wall-rock, selvage, salband<br />
salero nm salt mine<br />
salfemico,-ca adj salfemic<br />
salico,-ca adj salic<br />
salida nf outcrop | leak or seep<br />
saliente nm salient<br />
salifero,-ra adj saliferous<br />
salina nf salt mine | salt marsh | salina | salt<br />
pan | salt basin | salt flat | [Arg] salt desert<br />
salina s nfpl salt works | salt marsh<br />
salinero,-ra adj salt | requiring much salt in the<br />
patio process <strong>of</strong> amalgamation <strong>of</strong> silver ore |<br />
nm person employed to add salt to ore in the<br />
patio process <strong>of</strong> amalgamating silver ore<br />
salinidad nf salinity<br />
saliniense adj Salinan<br />
salinizacidn nf salinization<br />
salino,-na adj saline, salty<br />
salinometro nm salinometer<br />
salitrado,-da adj saltpetrous<br />
salitral adj saltpetrous | nm salt deposit |<br />
saltpeter deposit | saltpeter/nitrate works |<br />
salt basin | [Arg] salt marsh, salt steppe<br />
salitre nm salpeter, niter | [Ch] sodium nitrate<br />
salitrera nf salpeter deposit or bed | [Ch]<br />
deposit <strong>of</strong> sodium nitrate
salitreria nf salpeter or nitrate works<br />
salitrero,-ra adj salpetrous | nm salpeter worker<br />
salitroso,-sa adj salpetrous<br />
salma nf ton<br />
salmoita nf tarbuttite<br />
salmuera nf brine<br />
salobral adj saline<br />
salobre adj brackish, briny or salty<br />
salobreno/na adj saline<br />
salobridad nf saltiness, brackishness<br />
salon nm cavern or chamber <strong>of</strong> ore<br />
saloneo nm [Bol] room with ro<strong>of</strong> supported by<br />
pillars or timbering<br />
salopiense adj Salopian<br />
salsa nf mud volcano<br />
salsedumbre nf salinity<br />
salsima nf salsima, sialsima<br />
saltacidn nf saltation<br />
saltierra nf impure salt derived from dried lake<br />
beds<br />
salto nm throw <strong>of</strong> a fault | fault | s. aparente a<br />
younger vein which intersects an older vein at<br />
an acute angle such that it follows the older<br />
vein for a distance | s. de agua waterfall | s.<br />
horizontal horizontal displacement, shift | s.<br />
neto slip | s. vertical vertical displacement,<br />
throw<br />
samario nm samarium | s.-neodimio samariumneodymium<br />
sammita nf psammite<br />
sammitico,-ca adj psammitic<br />
sammogenico,-ca adj psammogenic<br />
sandfa nf [NMex] oblong, oval or rounded<br />
mountain resembling a watermelon<br />
saneado,-da adj drained<br />
saneamiento nm drainage<br />
sanear vtr to drain, dry out<br />
sangamoniense adj Sangamonian<br />
sangria nf a tunnel that joins two main shafts<br />
sanguinaria nf bloodstone<br />
sanidina nf sanidine<br />
sannoniano,-na adj Sannonian<br />
sannoniense adj Sannonian<br />
sano nm whole, virgin, unworked ground<br />
santoniano,-na adj Santonian<br />
santoniense adj Santonian<br />
sanukitoide nm orthoandesite<br />
sapantracita nf sapanthracite<br />
saperita nf sapperite<br />
saponita nf soaps tone, saponite<br />
saprolitico,-ca adj saprolitic<br />
S-2<br />
sapropel nm sapropel<br />
sapropelico,-ca adj sapropelic<br />
sapropelita nf sapropel<br />
saprosammita nf sandy sapropel<br />
sarabiado,-da adj gneissic<br />
sarcopsida nf sarcopside<br />
sardiense adj Sardic<br />
sardio nm sard<br />
sardo nm sard<br />
sarddnica nf sard<br />
sarddnice nm sardonyx<br />
sardonic nm sardonyx<br />
sarddnique nm sardonyx<br />
sarddnix nm sardonyx<br />
sarmatiano,-na adj Sarmantian<br />
sarmantiense adj Sarmantian<br />
sano nm scale, incrustation<br />
sarroso,-sa adj scaley, incrusted<br />
sasasa nf [Vz] a local variety <strong>of</strong> sandstone<br />
sassolina nf sassolite<br />
satelita nf satelite, fibrous serpentine<br />
saturacidn nf saturation | s. pendular pendular<br />
water saturation<br />
saturado,-da adj saturated<br />
saturar&fr to saturate<br />
saucesiense adj Saucesian<br />
saukovita nf metacinnabar<br />
saussuritizacidn nf saussuritization<br />
scachita nf scacchite<br />
scytiano,-na adj Scythian<br />
scytiense a^j Scythian<br />
schapbachita nf matildite<br />
scheibeita nf phoenicochroite<br />
schoenita nf picromerite<br />
secano nm sand bar<br />
secas nfpl refined silver<br />
seccidn nf section | 5. delgada thin section | 5.<br />
longitudinal longitudinal section | s.<br />
pulimentada polished section | s. transversal<br />
cross section<br />
secadal nm moorland<br />
secrecidn nf secretion | segregation<br />
sectil adj sectile<br />
secron nm sechron<br />
sector nm section, part, sector | area, zone<br />
secuaniano,-na adj Sequanian<br />
secuaniense adj Sequanian<br />
secuencia nf sequence | s. estratigrafica<br />
sedimentary sequence<br />
secundario,-ria adj secondary | supergene | nm<br />
Mesozoic
sedentario,-ria adj sedentary<br />
sedifluccidn nf sedifluction<br />
sedimentacidn nf sedimentation | s. euxina<br />
euxenic sedimentation<br />
sedimentar nf to aggrade, sediment<br />
sedimentario,-ria adj sedimentary<br />
sedimento nm sediment deposit | s. abisal<br />
pelagic sediment | s. anemogeno aeolian<br />
sediment | s. cldstico clastic sediment | s. de<br />
mar pr<strong>of</strong>undo pelagic sediment | s. efestogeno<br />
volcaniclastic sediment | s. eolico aeolian<br />
sediment | s. biogeno organic sediment | s.<br />
cldstico clastic sediment | s. criogeno glacial<br />
sediment | s. eolico aeolian sediment | s.<br />
eupeldgico \ s. fluvial fluvial sediment | s.<br />
hemipeldgico hemipelagic deposit | s. limnico<br />
lacustrine sediment | s. litoral coastal sediment<br />
| s. marino marine sediment | s. mecdnico<br />
mechanical sediment | s. orgdnico organic<br />
sediment | s. organogeno organic sediment | s.<br />
peldgico pelagic deposit | s. quimico chemical<br />
sediment<br />
sedimentos nmpl drill cuttings<br />
sedimentologia nf sedimentology<br />
sedimentorio nm sedimentation<br />
sedoso,-sa adj silky<br />
seelandiense adj Seelandian<br />
seficidad nf psephicity<br />
sefita nf sudite, psephite<br />
sefitico,-ca adj psephitic<br />
segmentacidn nf segmentation<br />
segmentado,-da adj segmented<br />
segmento nm segment<br />
segregacidn nf segregation<br />
segregado,-da adj segregated<br />
segullo nm overburden on a gold mine<br />
segundo nm second<br />
seismo nm earthquake, seism<br />
seleccidn nf selection, sorting | s. a mano hand<br />
sorting<br />
seleccionado,-da adj sorted, selected<br />
selectivo,-va adj selective<br />
selenio nm selenium<br />
selenato nm selenate<br />
selenida nf selenide<br />
selenita nf selenite<br />
selen-telurio nm selen-tellurium<br />
semialto nm [Tepezala, Aguascalientes, Mex]<br />
furnace used for smelting copper ore<br />
semiantracita nf semianthracite<br />
semibituminoso,-sa adj semibituminous<br />
S-3<br />
semicrat6nico,-ca adj quasicratonic<br />
semicristalino,-na adj hyalocrystalline<br />
senda nf foot trail, path<br />
senecaniense adj Senecan<br />
senectud nf senescence<br />
senescente adj senescent<br />
senil adj senile (erosion)<br />
senilidad nf senility (erosion)<br />
seno nm trough<br />
senoniano,-na adj Senonian<br />
senoniense adj Senonian<br />
sensitividad nf sensitivity<br />
sentarse en vpr to intersect, as in a shaft<br />
intersecting a vein<br />
sentazdn nm rock slide or landslide<br />
sentido nm sense or direction <strong>of</strong> throw on a<br />
fault<br />
senoraje nm royalty paid to the crown or state<br />
senorial nm [Huancavelica, Pe] smelter tolls<br />
paid to owners <strong>of</strong> pachamanca furnaces<br />
separacidn nf sorting or classification <strong>of</strong> ore |<br />
separation | parting<br />
separar vtr to sort or classify ore<br />
separata nf reprint<br />
sepe" nm [Col] layer <strong>of</strong> iron stained clay found<br />
above auriferous gravels<br />
separador nm separator | s. de gas gas separator<br />
septentrional nm vein having a north-south<br />
trend<br />
septima nf one seventh <strong>of</strong> the able-bodied work<br />
force <strong>of</strong> an Indian community drawn for<br />
service in the mita<br />
sequaniense adj Sequanian<br />
ser un oral v. intr. [Col] to be a rich mine<br />
sericitico,-ca adj sericitic<br />
sericitizacidn n/serialization<br />
serie nf series | s. calco-alcalina calc-alkaline<br />
series | s. isocjuimica isochemical series | s.<br />
ordenada ordered series | s. petrolifera oil-<br />
bearing series or strata<br />
serir nm serir, stony desert<br />
serpenteado,-da adj having a serpentine or<br />
highly variable strike or trend (veins)<br />
serpentina nf serpentine | s. fibrosa crysotile | s.<br />
hojosa antigorite<br />
serpentinizacidn nf sepentinization<br />
serp<strong>of</strong>ita nf serpophita<br />
serrado,-da adj serrate, serrated<br />
serrania nf ridge<br />
serravalliense adj Serravallian<br />
sesgadura nf shearing
sesgo,-ga adj biased | nm bias | sin s. unbiased<br />
sesgoconglomerado nm edgewise structure<br />
seudoautunita nf pseudoautunite<br />
seudoboleita nf pseudoboleite<br />
seudobomba nf lava ball<br />
seudobrecha nf pseudobreccia<br />
seudobrookita nf pseudobrookite<br />
seudocapa nf pseud obed<br />
seudocarst nm pseudokarst<br />
seudocirco nm pseudocirque<br />
seudodorita nf pseudochlorite<br />
seudoconcrecidn nf pseudoconcretion<br />
seudoconglomerado nm pseudoconglomerate<br />
seudocotunita nf pseudocotunnite<br />
seudocrisolita nf pseudochrysolite<br />
seudocrital nm pseudocrystal<br />
seudo-difusidn nf pseudo-diffusion<br />
seud<strong>of</strong>alla nf pseud<strong>of</strong>ault<br />
seud<strong>of</strong>enocristo nm pseudophenocryst<br />
seud<strong>of</strong>ibroso,-sa adj pseud<strong>of</strong>ibrous<br />
seud<strong>of</strong>ita nf pseudophite<br />
seud<strong>of</strong>dsil nm pseud<strong>of</strong>ossil<br />
seudogalena nf sphalerite<br />
seudogradacional adj pseudogradational<br />
seudolaguna nf pseudolagoon<br />
seudolaueita nf pseudolaueite<br />
seudoleucita nf pseudoleucite<br />
seudomalaquita nf pseudomalachite<br />
seudomatriz nf pseudomatrix<br />
seudomicrita nf pseudomicrite<br />
seudomicrosparita nf pseudomicrosparite<br />
seudomonoclinico,-ca adj pseudomonoclinic<br />
seudomontana nf pseudomountain<br />
seudomdrfico,-ca adj pseudomorphic<br />
seudomorfismo nm pseudomorphism<br />
seudomorfo nm pseudomorph<br />
seudonddulo nm pseudonodule<br />
seudo-<strong>of</strong>itico,-ca adj pseudo-ophitic<br />
seudo-oolito nm pseudo-oolith<br />
seudoporfiritico,-ca adj pseudoporphyritic<br />
seudoporfiroblastico,-ca adj<br />
pseudoporphyroblastic<br />
seudosefita nf peudobreccia,<br />
pseudoconglomerate<br />
seudorutilo nm pseudorutile<br />
seudosecundario,-ria adj pseudosecondary<br />
seudosparita nf pseudosparite<br />
seudostratificacidn nf pseudostratification<br />
seudosimetria nf pseudosymmetry<br />
seudotaquilita nf pseudotachylite<br />
seudovitrinita nf pseudovitrinite<br />
S-4<br />
seudovitrinoide nm pseudovitrinoid<br />
seudovolcan nm pseudovolcano<br />
seudowavellita nf crandallite<br />
sial nm sial, upper crust, sal, granitic layer<br />
sialico,-ca adj sialic<br />
sialita nf sialite, clay mineral<br />
siallitico,-ca adj siallitic<br />
sicilienseadj Sicilian<br />
siderazote nm siderazot<br />
siderodote nm siderodot (par siderite)<br />
sider<strong>of</strong>ilita nf siderophyllite<br />
siderdfilo,-la adj siderophile<br />
siderdfiro nm siderophyre<br />
siderolito nm aerosiderite<br />
sideroso,-sa adj siderose | nf siderite<br />
siderosfera nf siderosphere, inner core<br />
siderotilo nm siderotil<br />
sidurgia nf iron and steel industry<br />
siderurgico,-ca adj iron and steel<br />
siegeniano,-na adj Siegenian<br />
siegeniense adj Siegenian<br />
sienido,-da adj syenide<br />
sienita nf syenite<br />
sienitoide nm syenitoide<br />
sienodiorita nf syenodiorite<br />
sienogabro nm syenogabbro<br />
sierra nf mountain range | ridge<br />
sierranita nf sierranite<br />
siferna nf siferna, sima<br />
sigmoideo,-dea adj sigmoid, sigmoidal<br />
sil nm yellow ochre<br />
silcreta nf silcrete<br />
silesiense adj Silesian<br />
silex nm flint, silex, chert | silica<br />
silexita nf quartzolite, silexite | chert<br />
silhidrita nf silhydrite<br />
silicacidn nf silication<br />
silicado,-da adj silicated<br />
silicalita nf silicalite<br />
silicate nm silicate | 5. aislado nesosilicate | s. de<br />
aluminio aluminosilicate | 5. en andamiaje<br />
tectosilicate | 5. en anillo ring silicate,<br />
cyclosilicate | 5. en cadcna chain silicate,<br />
inosilicate | s. en grupo sorosilicate | s. en hoja<br />
phyllosilicate<br />
silice nf silica<br />
siliceo,-cea adj siliceous<br />
siliciclastico,-ca adj siliciclastic<br />
silicico,-ca adj silicic<br />
silicificacidn nf silicification<br />
silcificado,-da adj silicified
silicificar vtr to silicify<br />
silicilito nm silicilith<br />
silicinato,-ta adj silicinate<br />
silicic nm silicon<br />
silici<strong>of</strong>ita nf siliciophite<br />
silicoso,-sa adj siliceous<br />
silicotelico,-ca adj telehemic<br />
silificacidn nf silicification<br />
silo nm sill<br />
silomelana nf psilomelane<br />
siluriano,-na adj Silurian | nm Silurian<br />
silurico,-ca adj Silurian | nm Silurian<br />
silvanita nf sylvanite<br />
silvina nf sylvite<br />
silvinita nf sylvinite (mixture <strong>of</strong> halite and<br />
sylvite)<br />
silvita nf sylvite<br />
silla nf saddle, as in a vein, fold, etc.<br />
sillar nm sillar | nonwelded ash-flow tuff<br />
silleria nf ashlar stone<br />
sillina n/[Pe] sulfur<br />
sima nf sima, intermediate layer, basaltic layer |<br />
chasm, abyss, cavern<br />
simatico,-ca adj simatic<br />
simetria nf symmetry<br />
sim£trico,-ca adj symmetric, symmetrical<br />
simictita nf symmictite | diamictite<br />
simpl£ctico,-ca adj symplectic<br />
simplectita nf symplectite<br />
simplesita nf symplesite<br />
sinadelfita nf synadelphite<br />
sinant£ctico,-ca adj synantectic<br />
sinclinal adj synclinal | nm syncline | s.<br />
acostado recumbant syncline. | s. asimetrico<br />
asymmetric syncline | s. recostado recumbant<br />
syncline j s. recumbente recumbant syncline | s.<br />
simetrico symmetric syncline | s. volcado<br />
overturned syncline<br />
sinclinorio nm synclinorium<br />
sincroneidad nf synchroneity<br />
sincr6nico,-ca adj synchronous<br />
sinchisita nf synchysite<br />
sindeposicidn nf syndeposition<br />
sindeposicional adj syndepositional<br />
sineclisa nf synclise<br />
sinemuriano/-na adj Sinemurian<br />
sinemuriense adj Sinemurian<br />
sinforma nf synform<br />
singe'nesis nf syngenesis<br />
singene'tico/-ca adj syngenetic<br />
singonia cristalografica nf crystallization<br />
S-5<br />
system<br />
siniense adj sinian, siphean<br />
siniestro,-tra adj sinistral<br />
sinkinematico,-ca adj synkinematic<br />
sinopal nm sinople<br />
sinorogenico,-ca adj synorogenic<br />
sintectdnico,-ca adj syntectonic<br />
sinsedimentario nm synsedimentary<br />
sintactico,-ca adj syntactic<br />
sintectico,-ca adj syntectic<br />
sintectita nf syntectite<br />
sintect6nico,-ca adj syntectonic<br />
sintesis nm synthesis<br />
sint£tico,-ca adj synthetic<br />
sirca nf [Ch] vein<br />
sircar vtr [Ch] to strip overburden from a vein<br />
sismicidad nf seismicity<br />
sismico,-ca adj seismic | nf seismic | s. aplicada<br />
seismic reccording<br />
sismita nf seismite<br />
sismo nm earthquake | s. cercano nearby<br />
earthquake | s. de dislocation tectonic<br />
earthquake | s. distante distant earthquake | s.<br />
final aftershock | s. lejano distant earthquake |<br />
s. local nearby earthquake | s. preliminar<br />
foreshock | s. precursor foreshock | s. -principal<br />
main shock | s. tectonico tectonic earthquake |<br />
s. volcanico volcanic earthquake<br />
sismoescopo nm seismoscope<br />
sismografo nm seismograph | s. de relexion<br />
reflection seismograph | s. de refraccion<br />
refraction seismograph | s. sintetico synthetic<br />
seismograph<br />
sismograma nm seismogram<br />
sismologia nf seismology<br />
sismometria nf seismometry<br />
sismometro nm seismometer<br />
sismondina nf sismondine<br />
sistema nm system | process | s. cantera<br />
quarrying | s. cristalino crystal system | s. de<br />
falias fault system | s. de parados [Ch] recovery<br />
<strong>of</strong> sodium nitrate by evaporating caliche in an<br />
iron caldron | [seis] s. de tiro shooting system |<br />
s. digitalizador digitizer | s. hidrogrdfico river<br />
system<br />
sistematico,-ca adj systematic<br />
sitaparita nf bixbyite<br />
sitio nm location, site | s. de labor [Me"x] a land<br />
measure <strong>of</strong> 5000 by 5000 varas | s. de ganado<br />
mayor I square league = 4338.1123 acres | s. de<br />
ganado menor 3333 and 1/3 acres
situacidn nf location, site | s. de sondeo well site<br />
or location<br />
situadista nm worker employed to transport<br />
situados<br />
situados nmpl payments in silver from silver<br />
mines to the <strong>Spanish</strong> royal exchequer (<strong>of</strong>ten<br />
incorrectly applied to all silver shipments from<br />
South America)<br />
situar vtr to locate<br />
skiddaviano,-na adj Skidd avian<br />
skiddaviense adj Skiddavian<br />
skytienseflJ; Skythian<br />
smirnovita nf thorutite<br />
smithiense adj Smithian<br />
sobrecapa nf overburden<br />
sobreconsolidacidn nf overconsolidation<br />
sobreempuje adj overthrust<br />
sobreescurrimiento nm overthrust<br />
sobreexcavacidn nf overexcavation<br />
sobreguia nf intermediate level (in a mine)<br />
sobreimposicidn nf super-imposition<br />
sobreplegamiento nm overfold<br />
sobreponer vtr to overlap<br />
sobreposicidn nf overlap<br />
sobrepuesto,-ta adj superimposed, overlapping<br />
sobrerrajado nm [Bol] overbreak<br />
sobresabana nf alluvial deposit<br />
sobresaliente adj overhanging, projecting<br />
sobresalir vtr to overhang, project, jut out<br />
sobresaturacion nf over-saturation<br />
sobresaturado,-da adj oversaturated<br />
sobresaturar vtr to oversaturate<br />
sobrevega nf [PR] highest part <strong>of</strong> a low-lying<br />
area<br />
sobreyacente adj overlying<br />
sdcalo nm basemant<br />
socava nf undermining<br />
socavacidn nf undermining<br />
socavadora nm undercutter<br />
socavamiento nm undermining<br />
socavar vtr to undermine, undercut, dig under<br />
socavon. nm excavation | gallery, tunnel, adit |<br />
subsidence | s. de cateo prospecting adit | s. de<br />
desague drainage adit, drainage tunnel<br />
socavonero nm worker who drives a tunnel or<br />
gallery<br />
socaz nm tailrace<br />
socio,-ia adj companion, associated<br />
socorro nm assistance, aid | s. voluntario [Pe]<br />
forced labor in mines abolished in 1812<br />
sodaclaso nm albite<br />
S-6<br />
sodalitita nf sodalithite | sodalitite<br />
sddico,-ca adj sodic<br />
sodio nm sodium<br />
s<strong>of</strong>ocado,-da adj abandoned on account <strong>of</strong><br />
flooding (mines)<br />
s<strong>of</strong>ocarse vpr to flood<br />
sol nm sun | [Potosi, Bol] the eastern side <strong>of</strong><br />
Cerro Rico de Potosi<br />
solapado,-da adj overlapped, overlapping<br />
solapar vtr to overlap<br />
soldadura nf coalescence | fusion<br />
soldarse ypr to coalesce<br />
solera negra or solera pobre n/[Almaden, Sp]<br />
sandstone impregnated with cinnabar<br />
soleta nf clay or shale parting found in coal<br />
seams<br />
solevamiento nm uplift<br />
solevantamiento nm uplift<br />
solfatarico,-ca adj solfataric<br />
solidificacidn nf solidification<br />
solido,-da adj solid<br />
solifluccidn nf solifluction<br />
soligenuoso,-sa adj soligenuos<br />
solubilidad nf solubility<br />
solucidn nf solution | s. hidrotermal<br />
hydrothermal solution | s. molar molar<br />
solution | s. solido solid solution<br />
solvacidn nf solvation<br />
solvente nm solvent<br />
sombra nf grayish tinge exhibited by some ores<br />
| de s. [Col] horizontal, bedded, manto-like<br />
sombrero de alteration nm gossan<br />
sombrio nm [Potosi, Bol] the western side <strong>of</strong> the<br />
Cerro Rico de Potosi<br />
somero,-ra adj shallow<br />
sonar nm sonar | s. de superficie surface sonar<br />
sonda nf sonde | drill | s. caliza limestone<br />
sonde | s. de cable cable drill | s. de corona core<br />
drill | s. de cuchara earth auger | s. de diamantes<br />
diamond drill | s. de nucleo core drill | s. de<br />
prospeccion prospecting drill | s. de rotadon<br />
rotary drill | s. de tierra earth auger<br />
sondador nm echo sounder<br />
sondaje nm boring, drilling | sounding | s. a<br />
diamante diamond drilling | s. con corazon core<br />
drilling | s. de exploracion test drilling | s. de<br />
testigo core drilling<br />
sondar vtr to drill, bore | to take soundings<br />
sondear vtr to drill, bore | to investigate or<br />
explore ground | to take soundings<br />
sondeo nm drilling, boring | sounding | s. a la
granalla adamantine shot drilling | s. ascendente<br />
upward hole | s. desviado deviated hole | s.<br />
estratigrdfico core drilling | s. marino <strong>of</strong>fshore<br />
drilling | s. oblicuo drilling at an angle | s. par<br />
aire air drilling<br />
sonico,-ca adj sonic<br />
sondgrafo nm sonograph<br />
sonrosado,-da adj rosy, pink<br />
soplado nm deep fissure | open pocket in a<br />
vein, generally lined by druse | alluvium poor<br />
in gold<br />
sorbencia nf seepage<br />
sordawalita nf tachylyte<br />
soroche nm argentiferous lead ore, usually<br />
galena | s. plomoso lead carbonate | s. reluciente<br />
argentiferous galena<br />
soroque nm gangue, matrix<br />
sorosilicato nm sorosilicate<br />
sosa nf soda ash | natrona<br />
sdtano nm [M£x] vertical cave<br />
sotavento,-ta adj leeward, lee<br />
soterrado,-da adj buried, underground, blind<br />
soterrano,-na adj subterranean, underground<br />
sotlanque nm calcopyrite<br />
sotominero nm subforeman (in a mine)<br />
Southern nfrr [Pe] "La Southern", the Southern<br />
Peru Copper Corporation<br />
soyota nf Mineralized vug or cavity<br />
spamaciense adj Sparnacian<br />
spatiense adj Spathian<br />
spencita nf tridymite-(Y)<br />
staffordiense adj Staffordian<br />
stampiense adj Stampian<br />
stefaniense adj Stephanian<br />
sterrettita nf kolbeckite<br />
stipoverita nf stishovite<br />
struniense adj Strunian<br />
styrienseod; Styrian<br />
suavizado,-da adj smoothed<br />
subactivo,-va adj subactive<br />
subacuatico,-ca adj underwater, subaquatic<br />
subacueo,-cuea adj underwater<br />
subafloramiento nm subcrop<br />
subalcalico,-ca adj subalkalic<br />
subalcalino,-na adj subalkaline<br />
subaluvial adj suballuvial<br />
subalpino,-na adj subalpine, montane<br />
subaluminoso,-sa adj subaluminous<br />
subarkosa nf subarkose<br />
subarkdsico,-ca adj subarkosic<br />
subarriendo nm sublease<br />
subartesiano,-na adj subartesian<br />
subautomdrfico,-ca adj subautomorphic<br />
sub-bentonita nf metabentonite<br />
sub-bituminoso,-sa adj sub-bituminous,<br />
subclase nm subclass<br />
subconsecuente adj subconsequent<br />
subcontinento nm subcontinent<br />
subcortical adj subcrustal<br />
subcuenca nf sub-basin<br />
subdiabasico,-ca adj subdiabasic<br />
subdrenaje nm subdrainage<br />
subduccidn nf subduction<br />
subestrato nf sole | substratum<br />
subetapa nf substage<br />
subfabrico nm subfabric<br />
subfelspatico,-ca adj subfeldspathic<br />
subfillarenita nf subphyllarenite<br />
subfluvial adj underriver<br />
subfdsil nm subfossil<br />
subgrafita nf metagraphite<br />
subgrauwacke nm subgreywacke<br />
subgrupo nm [strat] subgroup<br />
subhedrdn nm subhedron<br />
subherciniense adj Subhercynian<br />
subhorizonte nm substratum<br />
subidiomdrfico,-ca adj hypidiomorphk,<br />
subautomorphic<br />
subjacente adj subjacent<br />
sublacustre adj sublacustrine<br />
sublevacidn nf uplift<br />
sublimacidn nf sublimation<br />
sublimado nm sublimate | s. amarillo orpiment<br />
| s. rojo realgar<br />
sublimar vtr to sublimate<br />
sublitarenita nf sublitharenite<br />
sublitoral adj sublittoral, neritic<br />
sublitwacke nm sublithwacke<br />
submarino,-na adj submarine<br />
submaturado,-da adj submature<br />
submetalico,-ca adj submetallic<br />
submuestreo nm subsampling<br />
sub<strong>of</strong>itico,-ca adj subophitic<br />
subperiodo nm subperiod<br />
subpresidn nf underpressure<br />
subproducto nm byproduct<br />
subrampa nf subincline (in a mine)<br />
subrosidn nf subrosion<br />
subsaturacidn nf subsaturation<br />
subsaturado,-da adj subsaturated<br />
subsaturar vtr to subsaturate<br />
subsecuente adj subsequent<br />
S-7
subsidencia nf subsidence<br />
subsidiario,-ria adj subsidiary<br />
substancia nf substance<br />
susbstitucidn nf substitution | s. metasomatica<br />
metasomatism<br />
substitute nm substitute<br />
substrate nm substratum<br />
subsuelo nm subsoil | subsurface<br />
subterraneo,-nea adj subsurface, underground<br />
subterrano nm subterrane<br />
subvolcinnm subvolcano<br />
subvolcanico,-ca adj subvolcanic<br />
subyacente adj underlying<br />
succino nm amber<br />
succidn nf subduction<br />
sucesidn nf succession<br />
sudetico,-ca adj Sudetic<br />
suelo nm soil, land | ground | surface<br />
suelto,-ta adj loose, unconsolidated<br />
suelto nm loose piece <strong>of</strong> ore<br />
sulfate nm [Tetala de Oro, Puebla, Mex]<br />
aluminous clay containing iron sulfates<br />
sulfatita nf sulphatite<br />
sulfato nm sulfate | s. banco barite | s. de calcio<br />
gypsum | s. de plomo anglesite | s. pesado barite<br />
| s. sodico mirabilite<br />
sulfidizacidn nf sulfurization<br />
sulfito nm sulfite<br />
sulf<strong>of</strong>ilo,-la adj sulphophile<br />
sulfosale nm sulfosalt<br />
sulfurado,-da adj sulfuretted<br />
sulfurico,-ca adj sulfuric<br />
sulfurizacidn nf sulfurization<br />
sulfuro nm sulfide or sulfide ore | s. de cadmio<br />
greenockite | s. de cobre chalcocite | s. de plomo<br />
galena | s. rojo. realgar | sulfuros en masa<br />
massive sulfides<br />
sulfuroso,-sa adj sulfurous | sour<br />
suma nf addition<br />
sumergido,-da adj submerged<br />
sumergimiento nm submergence<br />
sumergir itfr to submerge<br />
sumersidn nf submersion<br />
sumidero nm [PR] sinkhole<br />
sumiivtr to submerge<br />
sundtita nf andorite<br />
superantracita nf superanthracite<br />
S-8<br />
superetapa nf superstage<br />
superficial adj superficial<br />
superficie nf surface | area, extent | acreage |<br />
de s. surface | en s. at the surface | s. de<br />
deslizamiento translation plane or surface |<br />
slickenslide | s. de equilibria isostatic<br />
equilibrium surface | s. de erosion erosion<br />
surface | s. de estratificacion bedding surface,<br />
bedding plane. | s. de fracturaccion fracture<br />
plane, fault plane | s. listrica listric surface<br />
superficies-s nfpl s-surface<br />
superfluente adj superfluent<br />
supergenico,-ca adj supergene<br />
supergrupo nm supergroup<br />
superior adj upper<br />
superparamagnetismo nm superparamagnetism<br />
superperiodicidad nf superperiodicity<br />
superplasticidad nf superplasticity<br />
superponer vtr to superpose, superimpose<br />
superposicidn nf superposition | s. discordance<br />
overstep | s. transgresiva onlap<br />
superpresidn nf overpressure<br />
superpuesto,-ta adj superimposed,<br />
supplementary | nm overlap<br />
supersaturacidn nf supersaruration<br />
supersaturado,-da adj supersaturated<br />
supersaturar vtr to supersaturate<br />
superserie nf superseries<br />
supersistema nm supersystem<br />
suplementario^ria adj subsidiary<br />
supralitoral adj supralittoral, supratidal<br />
surcamiento nm furrowing<br />
surco nm groove, furrow | sill | s. de alud<br />
avalanche scar | s. de erosion erosion groove |<br />
s. de escurrimiento sill mark | s. glacidrico<br />
discontinue jumping gouge<br />
surgencia nf upwelling<br />
suitido,-da adj sorted | nm sorting<br />
susceptibilidad nf susceptibility<br />
suspendido,-da adj suspended<br />
suspensoide nm suspensoid<br />
sustancia nf substance<br />
sustitucion nf substitution<br />
sutura nf suture<br />
suturado,-da adj sutured
tabaire nm a variety <strong>of</strong> s<strong>of</strong>t limestone used for<br />
masonry<br />
tabianiense adj Tabianian.<br />
tabique nm [Me"x] 'horse' <strong>of</strong> rock in a vein,<br />
unmineralized rock separating bands <strong>of</strong> ore<br />
tabla nf slab (<strong>of</strong> rock) | table, list | side <strong>of</strong> a<br />
vein | t. de alto hanging wall | t. de bajo<br />
footwall<br />
tablazo nm mesa | flat stretch <strong>of</strong> a river<br />
tablero nm [Sp] slab | t. digitalizador digitizing<br />
tablet<br />
tablero de comprobacidn nm map showing<br />
allocation <strong>of</strong> exploration permits<br />
tacana nf silver ore | [Pe] argentite<br />
tacano nm ore rich in silver<br />
tac6nico,-ca adj Taconic<br />
taconiense adj Taconian<br />
tacos nmpl [Me"x] stones at the bottom <strong>of</strong> an<br />
arrastre<br />
tafrogenesis nf taphrogenesis<br />
tafrogenia nf taphrogeny.<br />
tafrogenico,-ca adj taphrogenic<br />
tafrogeosinclinal nm taphrogeosyncline<br />
tafrolito nm taphrolith<br />
taghanicano/-na adj Taghanican<br />
tagilita nf pseudomalachite<br />
tahona nf [Mex] variety <strong>of</strong> arrastre driven by a<br />
water wheel, spoon arrastre<br />
tahonero nm [M£x] worker in charge <strong>of</strong> a tahona<br />
tahulla nf land measure used in southeast Spain<br />
(1 tahulla = 11.18 ares = 0.28 acres)<br />
tajadera nf cold chisel | [Arag6n, Sp] sluice-gate<br />
tajado nm slicing (in mining)<br />
tajamar nm [Arg] basin<br />
tajear vtr [Pe] to stope<br />
tajeo nm [Pe] stoping<br />
tajerias nfpl [Isla San Fernando, Sp] salt-water<br />
evaporation ponds<br />
tajo nm cut, opening, excavation, trench |<br />
working face or cut | t. abierto open cut, open<br />
pit | t. ascendente ascending cut | t. descendente<br />
descending cut | t. descubierto open cut | t.<br />
recto cut perpendicular to a gallery | a t. abierto<br />
open-cutting or open-pitting<br />
tajdn nm [Andalusia, Sp] calcareous vein from<br />
which lime is extracted<br />
talacha nf [Mex] pickaxe, pick, mattock<br />
taladrador,-ora adj drilling, boring or piercing |<br />
T-l<br />
nm driller<br />
taladradora nf drill<br />
taladrarufr to drill or bore | to perforate<br />
taladro nm drill or auger | drill or borehole |<br />
drill bit | t. anular core drill | t. de alma core<br />
drill | t. de diamantes diamond drill | t. de<br />
rotacion rotary drill | t. de tierra earth auger | t.<br />
explorador prospecting drill | t. testigo [PR] core<br />
drill<br />
talasocracia nf period in which the earth's<br />
oceans covered most <strong>of</strong> the continents<br />
talasocratico,-ca adj charactarized by ocean high<br />
stand<br />
talasogenesis nf epirogenic processes that form<br />
ocean basins<br />
talcita nf talcite | damourite<br />
talco nm talc<br />
talcoide nm talcoid<br />
talcoso,-sa adj talcose, talcous<br />
talio nm thallium<br />
talmesita nf arsenate-belovite<br />
talpetate nm talpatate, caliche | [CAm]<br />
limestone<br />
talquita nm talc schist<br />
talud nm talus, slope | t. continental continental<br />
slope | t. de derrubios de ladera talus pile | t. de<br />
reposo natural slope, slope <strong>of</strong> repose | t. de<br />
ribera flood plain | t. detritico talus | t. litoral<br />
literal plain | t. redfal reef talus<br />
taludarufr to slope<br />
talweg nm thalweg<br />
talla nf cutting <strong>of</strong> precious stones | cutting or<br />
dressing <strong>of</strong> stone | working face where rock is<br />
being cut<br />
tallado,-da adj cut, dressed (stones)<br />
tallado nm cutting, dressing (stone, gems, etc.)<br />
tallar vtr to cut precious stones | to quarry | t.<br />
en facet as to facet<br />
taller nm workshop <strong>of</strong> the kind where things are<br />
actually made and /or repaired. | Mill.<br />
tamano nm size | dimensions | volume,<br />
capacity<br />
tambeo nm [Bol] large open stope<br />
tamiz nm sieve, sifter, usually mechanical |<br />
pasar por el t. to screen, sift<br />
tamizar vtr to sift, sieve, or screen<br />
tampon nm [chem] buffer<br />
tanda nf layer | series | work-shift | amount <strong>of</strong><br />
work done (i.e. ore mined, distance drifted)<br />
during a work-shift | tour <strong>of</strong> duty in the mita \<br />
work gang | [pet] run
taneciano,-na adj Thanetian<br />
ianecienseadj Thanetian<br />
tangeita wf calciovolborthite<br />
tangencial adj tangential<br />
tangente adj tangent | nf tangent<br />
tantalio ntn tantalum<br />
tantalo nm tantalum<br />
tantear vtr to work out roughly, estimate | to<br />
size-up, measure | to try out, test | to<br />
examine, study a project or proposal<br />
tanteo nm rough estimate | test | approximate<br />
calculation<br />
tapa nf hanging-wall, ro<strong>of</strong> | c<strong>of</strong>fer-dam used in<br />
placer mining<br />
tapado,-da adj concealed, covered up, blind<br />
tapado nm buried treasure<br />
tapar vtr to conceal, cover, cover-up<br />
tapdn nf plug | c<strong>of</strong>fer-dam used in placer<br />
mining | t. volcanico volcanic plug or pipe<br />
taponar vtr to construct a c<strong>of</strong>fer-dam in order to<br />
work placers<br />
taqueo nm [Bol] a caved shaft | shaft or<br />
working backfilled with waste or low-grade<br />
ore<br />
taquihidrita nf tachyhydrite<br />
taquilita nf tachylite<br />
taquimetria nf tachymetry, stadia survey<br />
taquim£tro nm tachymeter, stadia<br />
taquisismo nm rapid differential movement <strong>of</strong><br />
the lithosphere<br />
tardiglacial nm a glacial stage<br />
tarea nf a certain quantity <strong>of</strong> ore, drifting, etc.<br />
set out as a task to be performed in a single<br />
work shift | [Bol] a job or task perfomed by<br />
contract [Sto Pgo] a measure <strong>of</strong> area <strong>of</strong> about<br />
0.1565 acres<br />
tartariense adj Tartarian<br />
tasa nf appraisal, valuation | tax | limit on<br />
expenditures or outlays | rate | t. de sondeo<br />
sampling rate<br />
tasacidn nf appraisal, valuation | calculation<br />
tasar vtr to appraise, value | to tax | to<br />
regulate, fix or ration<br />
tascina nf naumannite<br />
tasco nm cupel or crucible | variety <strong>of</strong> fireclay<br />
tasconio nm an argillaceous earth used to make<br />
crucibles<br />
tases nmpl [Me"x] ore calcined in open air heaps<br />
tavistockita nf carbonate-apatite<br />
taylorense adj Tayloran<br />
tecacolote nm [Guerrero, M£x] an aluminous<br />
T-2<br />
slate<br />
tecalf nm a variety <strong>of</strong> alabaster, 'Mexican<br />
alabaster', 'Mexican marble' or 'Mexican onyx'<br />
tecnecio nm technetium<br />
tecoral nm [Huitzuco, M£x] waste rock<br />
tecozahuitl nm yellow ochre<br />
tecpatl nm flint, hornstone, green jade<br />
tectita nf tektite<br />
tectoclino nm geotectocline<br />
tectoestratigrafico,-ca adj tectostratigraphic<br />
tectogenesis nf tectonics, tectogenesis<br />
tectdgeno nm tectogene<br />
tect6nico,-ca adj tectonic | nf tectonics | t. de<br />
placas plate tectonics | t. salina salt tectonics<br />
tectonismo nm diastrophism<br />
tectonita nf tectonite<br />
tectonizacidn nf tectonization<br />
tecton<strong>of</strong>isica nf tectonophysics<br />
tectonosfera nf tectonosphere<br />
tectosecuente adj tectosequent<br />
tectosfera nf tectosphere<br />
tectosilicato nm tectosilicate<br />
tectotopo nm tectotope<br />
techo nm layer or bed which caps a deposit | t.<br />
degaleria hanging-wall, ro<strong>of</strong><br />
tefra nf tephra<br />
tefrita nf tephrite<br />
tefrocronologfa nf tephrochronology<br />
tefroita nf tephroite<br />
tehuilote nm [Mex] quartz crystals | country<br />
rock<br />
tejo nm ingot, usually <strong>of</strong> gold | [Mex] cake <strong>of</strong><br />
silver as the end result <strong>of</strong> the patio process <strong>of</strong><br />
reducing silver ores | t. de oro gold bullion<br />
tejdn nm wedge, plate or cake <strong>of</strong> gold |<br />
[geomorph] tejon<br />
teleme'tro nm telemeter<br />
telera nf [Huelva, Sp] heaps <strong>of</strong> copper ore<br />
roasted or calcined in situ<br />
telesismo nm distant earthquake, teleseism<br />
teletermal adj telethermal<br />
telurantimonio nm tellurantimony<br />
telurato nm tellurate<br />
telurbismuto nm tellurbismuth<br />
telurico,-ca adj telluric<br />
telurido nf telluride<br />
telurio nm tellurium | tellurium ore<br />
telurita nf tellurite<br />
telurobismutenita nf telluribismuthenite<br />
teluroide nm telluroid<br />
telurometro nm tellurometer
telogen£tico,-ca adj telogenetic<br />
tembladero nm [Tobasco, Mex] area with<br />
asphaltic soil<br />
temblor nm earthquake, tremor | t. de tierra<br />
earthquake<br />
temiskamita nf maucherite<br />
tempano nm ice floe | t. de hielo iceberg<br />
templado,-da nm temperate<br />
temprano,-na adj early<br />
tenate nm [Mex/Hond] a bag made <strong>of</strong> hide used<br />
to haul or draw ore, etc. out <strong>of</strong> a mine (a tenate<br />
made from half an oxhide will hold 9 arrobas <strong>of</strong><br />
ore)<br />
tenatero nm [Me"x] worker who carries ore in a<br />
ten at e<br />
tendencia nf trend<br />
tenderse vpr [Me"x] to become sub-divided or<br />
floured by amalgamation<br />
tendido nm dip<br />
tendimiento nm [Bol] dip<br />
tenestel nm [Tasco, Me"x] local variety <strong>of</strong><br />
limestone<br />
tenor nm tenor or fineness | t.fino. fineness <strong>of</strong><br />
gold<br />
tentadura nf [Me"x] in the patio process <strong>of</strong><br />
extracting silver from ore, the test washing <strong>of</strong><br />
silver amalgamated with mercury in order to<br />
adjust the mixture <strong>of</strong> materials used in the<br />
extraction process | by extension, any test<br />
made by panning or washing<br />
tenido,-da adj stained<br />
teodolito nm theodolite<br />
teorema nm theorem | t. central Umite central<br />
limit theorem | t. de Bayes Bayes theorem<br />
teoria nf theory | t. anticlinal anticlinal theory |<br />
t. isostdtica isostacy<br />
teotines nmpl [Santa Cruz, Mex] unusually<br />
shaped rocks surrounded by volcanic ash<br />
tepetate nm caliche | [Mex] volcanic tuff used<br />
in construction | waste rock or gangue |<br />
country rock | hardpan | conglomerate<br />
tepostel nm [M£x] precious metal bearing<br />
gossan or supergene oxides<br />
tepostete nm [Sonora, M£x] cobbles <strong>of</strong> specular<br />
hematite sometimes found in gold placers<br />
tepustete nm [Calamahf, Mex] iron ore<br />
tequezquite nm [Mex] sodium carbonate<br />
tequio nrr axes, duties or royalty on ore | ore<br />
not worth extraction | a task set as a day's<br />
work for a miner | the plural tequios can refer<br />
to heaps or stockpiles <strong>of</strong> ore<br />
T-3<br />
teralita nf theralite, foid gabbro<br />
terbio nm terbium<br />
terciario,-ria adj Tertiary | nm Tertiary<br />
tercio nm half a mule load, which translates to<br />
different weights in different places, not to<br />
mention with different mules and mule<br />
skinners<br />
terma nf therm<br />
termal adj thermal<br />
termas nfpl hot springs<br />
termio nm therm<br />
tennocarst nm thermokarst<br />
te"rmico,-ca adj thermal<br />
terminacidn nf completion <strong>of</strong> a well | t. doble<br />
dual completion | t. multiple multiple<br />
completion<br />
tennoclasa nf crack formed in a rock by a<br />
sudden change in termperature<br />
termodina'mico,-ca adj thermodynamic<br />
termoela'stico,-ca adj thermoelastic<br />
termogeno nm thermogene<br />
termoge'nesis nf thermogenesis<br />
termografia nf thermography<br />
termogravimetria nf thermogravimetry<br />
termolumlniscencia nf thermoluminescence<br />
termometro nm thermometer | t. geologico<br />
geologic thermometer<br />
termonatrita nf thermonatrite<br />
termo-osmosis nf thermo-osmosis<br />
termopla'stico,-ca adj thermoplastic<br />
ternario,-ria adj ternary<br />
terraciense adj Terracian<br />
terrapin nm terrace | slope | terreplain<br />
terraza nf terrace | t. aluvional alluvial terrace,<br />
drift terrace | t. cosier a raised beach | t. de<br />
deposicion aggradation terrace | t. de erosion<br />
erosional terrace | t. de geiserita sinter terrace |<br />
t. ^structural structural terrace | t. favorable<br />
favorable ground | t. fluvial stream terrace | t.<br />
impar unpaired terrace | t. marina marine<br />
terrace<br />
terremoto nm earthquake<br />
terreno nm ground, land | terrain, terrane |<br />
piece <strong>of</strong> land | plot, site | earth, rock or<br />
formation, as in t. carbonifero 'carbonaceous<br />
rock' | t. baldw government land | t. de encima<br />
top soil | t. franco land which may be freely<br />
conceded by a government to mining<br />
enterprises | t. terreno all-terrain<br />
terreo,-ea adj earthy | de color t. earth-colored<br />
terrero,-ra adj earth
terrero nm heap or pile <strong>of</strong> dirt | waste rock |<br />
dump, tailings pile | alluvium<br />
terrestre adj terrestrial, earthly<br />
terrigeno,-na adj terrigenous<br />
terrojo nm red earth<br />
terroso,-sa adj earthy | brown, earth-colored |<br />
n/[Me"x] vein <strong>of</strong> clay<br />
terruno nm piece <strong>of</strong> land<br />
tertel nm [Ch] hardpan<br />
tesis nf thesis | theory, idea | t. de grado thesis<br />
written for a five-year degree | t. doctoral<br />
doctoral dissertation<br />
testa nf [Mex] test<br />
testero nm overhand stope, back stope | t.<br />
abovedado domed stope, pyramid stope | t. de<br />
techo piano flat-backed stope | t. escalonado rill<br />
stope<br />
testificacion nf log | t. acustica acoustic log<br />
testigo nm core | sample, specimen | barren<br />
rock | [surv] reference point | t. de erosion<br />
outlier | t. de perforacion drill core<br />
Tetis nm Tethys<br />
tetradimita nf tetradymite<br />
tetraedrita nf tetrahedrite<br />
tetraedro nm tetrahedron<br />
tetramorfo nm tetramorph<br />
tetramdrfico,-ca adj tetramorphous<br />
tetramorfismo nm tetramorphism<br />
tetratoedro nm tetratohedron<br />
tetzontle nm [Mex] a scoracious basaltic rock<br />
used as a building stone<br />
textura nf texture | t. aplitica aplitic texture | t.<br />
fluida fluid texture | t. fluidal flow structure | t.<br />
granuda granular texture | t. microgranuda<br />
microgranular texture | t. microlitica microlitic<br />
texture | t. pegmatitica pegmatitic texture | t.<br />
porfidica porphyritic texture | t. vitea glassy<br />
texture<br />
tezontle nm [Me"x] a scoracious basaltic rock<br />
used as a building stone<br />
thalana nf [Bol] small sieve used in hand sorting<br />
<strong>of</strong> pulverized ores<br />
thanetiano,-na adj Thanetian<br />
thanetiense adj Thanetian<br />
thojeo nm [Bol] act <strong>of</strong> estimation by a miner <strong>of</strong><br />
the extent <strong>of</strong> pay ore prior to drilling and<br />
blasting<br />
thuringiense adj Thuringian<br />
tiatales nmpl [Tasco, M£x] local variety <strong>of</strong><br />
limestone<br />
tibe nm [Col] corundum | smooth, flat, elliptical<br />
T-4<br />
and spherical stones found in alluvial placers<br />
once thought to be favorable indicators for<br />
gold placers<br />
tiempo nm time | t. absolute absolute time | t.<br />
continental continental time | t. de intercepcion<br />
intercept time | t. de propagadon travel time | t.<br />
de retraso delay time | t. relative relative time<br />
tienta nf earth auger<br />
tierra nf earth, land, soil, ground | region,<br />
native country | any rock or mineral | fine<br />
grained or finely crystalline ore | gangue or<br />
matrix | hacer tierras to work a placer | t.<br />
adentro inland. | t. alcalina alkaline earth | t.<br />
aluvial alluvium | t. amarilla yellow earth,<br />
yellow ochre | t. apovillada ore suitable for<br />
amalgamation in the patio process | t. arcillosa<br />
clayey ground. | t. azul blue earth, blue ground<br />
| t. blanca micaceous clay; calcareous tufa | t.<br />
comun earthy ores somewhat amenable to<br />
amalgamation | t. de aluvion alluvium. | t. de<br />
asentar or de afinar [Tamaulipas, Me"x]<br />
weathered marl | t. de asiento [BC, M£x] a fine,<br />
auriferous sand | t. de batan fuller's earth | t.<br />
de caparossa red ochre. | t. de diatomeas<br />
diatomaceous earth. | t. de fuller fuller's earth.<br />
| t.deflor [El Caratal, Vz] hematitic, gold-<br />
bearing soil developed on gold veins | t. de<br />
ladrillos brick clay | t. de porcelana kaolin | t. de<br />
tinta red ochre | t. diatomacea diatomaceous<br />
earth | t. endurecida hardpan | t. firme<br />
continent | t. franca top soil | t. grasa pipe clay<br />
| t. gredosa clayey marl | t. de labor smalls<br />
resulting from hand sorting <strong>of</strong> ore | t. ordinaria<br />
[Guanajuato, Mex] an inferior grade <strong>of</strong> ore<br />
yielding about 80 ounces <strong>of</strong> silver to a ton | t.<br />
parda iron oxide rich soil | t. pesada barite | t.<br />
de porcelana china clay | t. quemada balls <strong>of</strong><br />
residue from mercury reduction furnaces<br />
mixed with clayey smalls that are reduced<br />
again in a smaller furnace | t. rara rare earth |<br />
t. refractaria fire clay | t. roja iron rich clay <strong>of</strong>ten<br />
staining limestone | t. verde greenstone,<br />
chloritically altered rock | t. de yunque smalls<br />
resulting from sorting <strong>of</strong> ore | tierras bajas<br />
lowland | tierras inundables tidelands | tierras<br />
malas badlands | tierras raras rare earths<br />
tierras nfpl [New Almaden, Calif] fine mercury<br />
ore<br />
tiffaniense adj Tiffanian<br />
tigliense adj Tiglian<br />
tilita nf tillite
tilloide nm tilloid<br />
tina nf [Cerro de Pasco, Pe] purification <strong>of</strong> silver<br />
amalgam<br />
tinaja nf water pocket developed below a<br />
waterfall | natural reservoir | [N. Mex]<br />
temporary pool | spring too feeble to form a<br />
stream | [Guadalcazar, Me"x] small bunch <strong>of</strong><br />
cinnabar found at the intersections <strong>of</strong> veins<br />
tinajita nf solution pan<br />
tinolita nf thinolite<br />
tinolitico,-ca adj thinolitic<br />
tinto,-ta adj red, dark red<br />
tioughniogense adj Tioughniogan<br />
tipificacion nf classification<br />
tipo nm type, class, kind | rate, as in tipo de<br />
interes 'rate <strong>of</strong> interest' | percentage<br />
tipom6rfico,-ca adj typomorphic<br />
tirada aparte nf reprint<br />
tirar una labor vtr to.prospect and/or work a<br />
deposit<br />
tiro nm shot (in blasting) | [surv] course |<br />
[Me"x] shaft, winze or pit | depth | t. ciego<br />
winze | t. de alcanda raise | t. de mina shaft | t,<br />
de recueste adit, inclined shaft | t. de velocidad<br />
surface velocity pr<strong>of</strong>iling | t. de zona alterada<br />
weathering shot | t. en abanico fan shooting | t.<br />
en pauta pattern shooting | t. inclinado inclined<br />
shaft<br />
tirolita nf tyrolite<br />
titan£fero,-ra adj titanium-bearing, titaniferous<br />
titanio nm titanium<br />
tita*nico,-ca adj titanic<br />
titanita nf sphene<br />
titanocromita nf titanochromite<br />
titoniano,-na adj Tithonian<br />
titoniense adj Tithonian<br />
titulacidn nf assay | titration<br />
titulo nm title | degree | diploma | t. de<br />
propiedad title to a mining claim<br />
tiza nf chalk | finely divided gypsum | [Ch]<br />
mixture <strong>of</strong> ulexite with halite, sodium sulfate,<br />
lime and sand found in salares or dry lake beds<br />
tizar nm [Cerro de Mercado, Me"x] a large<br />
deposit <strong>of</strong> high purity silica<br />
tizate nm [M£x] chalk<br />
toarciano,-na adj Toarcian<br />
toarciense adj Toarcian<br />
toba nf tufa | tuff | chalk | t. calcarea tufa,<br />
calcsinter, travertine | t. caliza calcareous tuff,<br />
travertine | t. de cenizas volcanic tuff | t. silicea<br />
siliceous sinter | t. soldada welded tuff<br />
T-5<br />
tobaceo,-ea adj tuffaceous<br />
tobarnm tuff quarry<br />
tobel nm dobel<br />
toboso,-sa adj tuffaceous<br />
tocar la greda vtr [Fr Guiana] to reach bedrock<br />
in a placer<br />
tocochimbo nm [Pe] blast furnace<br />
todouno nm unprocessed coal<br />
t<strong>of</strong>o nm [Ch] fire clay | Durango, Mex] china<br />
clay<br />
tojear vtr [Bol] to support the ro<strong>of</strong> <strong>of</strong> a mine<br />
with large fragments <strong>of</strong> rock<br />
tojo nm [Bol] large piece or fragment <strong>of</strong> rock<br />
used to support the ro<strong>of</strong> <strong>of</strong> a mine<br />
tombolo nm sand bar<br />
tomin nm one eighth <strong>of</strong> a castellano de oro, one<br />
third <strong>of</strong> an adarme<br />
tonawadense adj Tonawadan<br />
tonel nm barrel<br />
tonelada nf ton, which at one time varied in<br />
weight from place to place | t. bruta long ton,<br />
gross ton | t. corta short ton, net ton | t. de<br />
ensayador assay ton | t. metrica metric ton | t.<br />
larga tong ton | t. metrica metric ton | t. neta<br />
short ton, net ton<br />
tonelaje nm tonnage | t. bruto gross tonnage<br />
tonelametro nm metric ton<br />
tonga nf layer | pile, heap | difference in level,<br />
or head, between two points | entrar t. to drain<br />
a mine or working by sluices, adits, canals etc.<br />
| t. de la mina. lowest practical point from<br />
which a mine may be drained by gravity<br />
tongada nf layer<br />
tongriano,-na adj Tongrian<br />
tongriense adj Tongrian<br />
tonolowayense adj Tonolowayan<br />
tonstein nm claystone<br />
topacio nm topaz | t. del Brasil reddish, rose or<br />
purplish yellow varieties <strong>of</strong> topaz | t. ahumado<br />
dark brown crystalline quartz | t. de Hinojosa<br />
or de Salamanca yellow crystalline quartz | t.<br />
oriental yellow corundum<br />
tope nm rich pocket <strong>of</strong> ore | [Bol] end or bottom<br />
<strong>of</strong> a working, working face<br />
topo nm league and a half | standard measure<br />
<strong>of</strong> ground ore, a fixed amount <strong>of</strong> which had to<br />
be delivered weekly by the mortiri<br />
topografia nf topography | surveying | t. carst<br />
karst topography<br />
topografico,-ca adj topographic<br />
topografo nm topographer | surveyor
topologia nf topology<br />
topometria nf topometry<br />
toque nm touchstone<br />
torca nf sinkhole | basin, depression | sand<br />
pipe/ sand gall<br />
torcer vtr to change direction | t. el rumbo to<br />
change in strike<br />
tordo,-da adj grey<br />
torio nm thorium<br />
tornasol nm iridescence<br />
tornasolado,-da adj iridescent<br />
torno nm [Bol] hoist<br />
toro nm [Bol] pillar (in a mine)<br />
torpedeamiento nm artificial fracturing | t. por<br />
vibracion vibr<strong>of</strong>rac<br />
tone nf tower | t. de extracion or de perforation or<br />
de sondeo oil derrick, head frame | torre-torre<br />
[Pe] towers <strong>of</strong> hot spring deposits<br />
torrejoniense adj Torrejonian<br />
torrente nm ravine, stream | freshet<br />
torrera nfpl [Rio Tin to, Sp] heaps <strong>of</strong> ore roasted<br />
in situ<br />
torridoniense adj Torridonian<br />
tortilla nf hardpan<br />
tortoniano,-na adj Tortonian<br />
tortoniense adj Tortonian<br />
tortuosidad nf tortuosity<br />
tosca nf hardpan | [Patagonia, Arg] white<br />
deposits <strong>of</strong> caclium carbonate occuring in loess<br />
| [Col] bed <strong>of</strong> volcanoclastic sediment in<br />
placers above sepe and pay dirt j [Catorce,<br />
Me"x] altered dioritic and porphyritic dikes |<br />
[Mex] talc seams | [Guadalccizar, Mex] altered<br />
granite porphyry | [Guadalcazar, Me"x] yellow<br />
ochre colored lithomarge at contact <strong>of</strong> granite<br />
porphyry with limestone | [PR] s<strong>of</strong>t coral<br />
limestone used for masonry, road surfacing<br />
and as fertilizer<br />
tosco,-ca adj coarse, rough<br />
tostacidn nf roasting, calcination<br />
tostador nm [Me"x] roasting furnace | worker<br />
who operates a roasting furnace<br />
tostadura nf roasting, calcination<br />
tostar vtr to roast ore<br />
tournaisiano,-na adj Tournaisian<br />
toumaisiense adj Tournaisian<br />
trabajadero nm [Col] vein worked by open pit.<br />
trabajar vtr to work a mine or placer<br />
trabajo nm working <strong>of</strong> a mine or placer | nmpl<br />
workings | t. a cielo abierto open cutting, open<br />
pitting, quarrying | t. (de) banca underhand<br />
T-6<br />
sloping | t. de cabeza overhand stoping | t. de<br />
cielo overhand stoping | t. de reconocimiento.<br />
exploratory workings | t. de rajo con grandines<br />
directos overhand stoping j t. de rajo con<br />
grandines invertidos underhand stoping | t. del<br />
antiguo [Col] working dating back to the time<br />
<strong>of</strong> the <strong>Spanish</strong> conquistadores \ t. del indio [Col]<br />
working dating back to precolumbian times |<br />
t. por testeras overhand stoping | t. sistema tolva<br />
glory hole | t. transversal cross cut<br />
trabanca nf [Ec] mine timber<br />
traccidn nf traction<br />
traccionita nf tractionite<br />
tragante nm sluice<br />
trama nf structure, framework<br />
tramo nm lot, tract, stretch, plot <strong>of</strong> land j t. rico.<br />
rich ore shoot<br />
trampa nf trap, as for hydrocarbons or ore |<br />
mercury trap in a gold mill | sluice gate | t.<br />
compuesta combination trap | t. diagenetica<br />
diagenetic trap | t. estratigrdfica stratigraphic<br />
trap | t. estructural structural trap | t. petrolifera<br />
hydrocarbon trap<br />
tranca n/[Bol] wooden stull (in a mine)<br />
trancada nf trench | [Almeria, Sp] inclined<br />
gallery with steps<br />
tranquilidadita nf tranquillityite<br />
transfluencia nf transfluence<br />
transformacidn nf transformation | t. anacldstica<br />
deformation without shearing | t. de Laplace<br />
Laplace transformation<br />
trans-formacional adj trans-formational<br />
translacidn nf translation<br />
transmisidn nf transmission | t. retardada<br />
transmission lag<br />
transparente adj transparent<br />
transporte nm transport | t. eolico aeolian<br />
transport | L fluvial fluvial transport | t. glaciar<br />
glacial transport<br />
transversal nm cross cut<br />
tranformacidn nf tranformation | t. adiabatica<br />
adiabatic transormation<br />
transliicido,-da adj translucent<br />
transluciente adj transluscent<br />
transmisividad nf transmissivity<br />
transopaco,-ca adj transopaque<br />
transparencia nf slide, transparency<br />
transparente adj transparent | nm transparency<br />
transporte nm transportation<br />
transuranico,-ca adj transuranic<br />
trapezoedro nm trapezohedron
trapiche nm [Ch] crude mill for crushing ore<br />
trapichero nm [Ch] operator <strong>of</strong> a trapiche \<br />
[Potosi, Bol] operator <strong>of</strong> a trapiche who usually<br />
worked stolen ore<br />
trapp nm trap, plateau basalt<br />
traquiandesita nf trachyandesite<br />
traquibasalto nm trachybasalt<br />
traquidiscontinuidad nf trachydiscontinuity<br />
traquidolerita nf trachydolerite<br />
traqui<strong>of</strong>itico,-ca adj trachyophitic<br />
traquita nf trachyte<br />
traquitico,-ca adj trachytic<br />
traquitoide nm trachytoid<br />
tras nm tuff | tufa<br />
traslacidn nf translation | t. continental<br />
continental drift | de t. translational<br />
traslapamiento nm overlap<br />
traslucido,-da adj transluscent<br />
trasluciente adj transluscent<br />
traslucir vintr to be transluscent<br />
trasluz nm diffused light | reflected light<br />
trasversal adj transverse<br />
tratamiento nm treatment | reworking <strong>of</strong> a well<br />
to increase production, 'doctoring'<br />
travecaja nf cross cut<br />
travertine nm travertine<br />
travesia nf traverse | [Col] cross cut<br />
traviesa nf cross cut<br />
traza nf trace | streak<br />
trazado nm tracing | t. de mapamiento mapping |<br />
t. de reflexiones reflection picking<br />
trazador nm [Mex] underground mine foreman<br />
trecho nm passing <strong>of</strong> ore from one worker to<br />
another in baskets<br />
tremadociano,-na adj Tremadocian<br />
tremadociense adj Tremadocian<br />
tremor nm tremor<br />
trempealeauense adj Trempealeauan<br />
trentoniense adj Trentonian<br />
trepano nm drill bit | t. de diamantes diamond<br />
drill bit<br />
triaquisoctaedro nm trioctahedron<br />
triangulacidn nf triangulation<br />
trias nm Trias, Triassic.<br />
triasico,-ca adj Triassic | nm Triassic<br />
Tribunal de Mineria nm mining court<br />
established in Peru in 1736<br />
tributario,-ria adj tributary<br />
triclmico,-ca adj triclinic<br />
tricroismo nm trichroism<br />
tridimita nf trydimite<br />
T-7<br />
triflita nf triphylite<br />
triedro,-ra adj trihedral<br />
trigiro nm ternary axis <strong>of</strong> rotation<br />
trilla nf [Mex] heap <strong>of</strong> ore<br />
trimorfismo nm trimorphism<br />
trinchar vtr [Col] to build a trincho, to dam<br />
trinchera nf trench, ditch | [Me"x] roughly<br />
stacked pile <strong>of</strong> rock or ore | t. de prestamos [PR]<br />
borrow pit<br />
trincho nm [Col] arrangement <strong>of</strong> dams, trenches<br />
etc. used to divert the flow <strong>of</strong> a stream for<br />
purposes <strong>of</strong> working a placer<br />
trinitiense adj Trinitian<br />
triple unidn nf triple junction<br />
tripolita nf diatomite<br />
triquita nf microlite<br />
trisoctaedro nm trioctahedron<br />
tritio nm tritium<br />
trituracidn nf grinding, crushing<br />
triturador,-dora adj crushing, grinding | nf<br />
crusher<br />
triturar vtr to crush or grind ore<br />
trivalente adj trivalent<br />
trocar la batea vtr [Col] to pass bateas <strong>of</strong> gravel<br />
from one worker to another by hand<br />
troje de metal nf [Huitzuco, Me"x] mercury ore<br />
filling open space in gypsum<br />
troncar vtr to truncate<br />
tronco nm stock | t. de montana peneplain | t.<br />
fosil coal pipe | t. petrificado woodrock<br />
trozo nm [Chacas, Pe] lump <strong>of</strong> ore the size <strong>of</strong> an<br />
egg<br />
truncacidn nf truncation<br />
truncado,-da adj truncate, truncated<br />
truncamiento nm truncation, as <strong>of</strong> strata<br />
truncar vtr to truncate<br />
trunco nm stock<br />
tuberia nf piping, tubing | drill string | t.<br />
colectora gathering line | t. de production<br />
producing drill string<br />
tubo nm tube | t. de explosion diatreme | t. de<br />
perforation drill pipe | t. portatestigos core barrel<br />
tucanita nf scarbroite<br />
tucurababi nm [Matape", Mex] an altered granite<br />
tucurubay nm gravel<br />
tueste nm roasting <strong>of</strong> ore<br />
tufaceo,-cea adj tufaceous<br />
tufisita nf tuffisite<br />
tufita nf tuffite<br />
tuflava nf tufflava<br />
tulio nm thulium
tumbado nm [Bol] vein or ore in the upper part<br />
<strong>of</strong> a working | false ceiling in a gallery or stope<br />
tumbaga nf [Col] an alloy <strong>of</strong> equal parts <strong>of</strong> gold,<br />
silver and copper<br />
tumbago nm [Col] impure gold<br />
tumbamiento nm recumbance<br />
tumbar vtr [M^x] to break ground, win or get<br />
ore | t. la mina [Col] to carelessly work a mine<br />
such that it caves<br />
tumbe nm [M^x] breaking ground, winning or<br />
getting ore<br />
tumor «m dome<br />
tunel nm tunnel, gallery<br />
tungomelano nm tungomelane<br />
tungstato nm tungstate<br />
tungsteno nm tungsten<br />
tungst£cor-ca adj tungstic<br />
tuoriense adj Tuorian<br />
tupia«/[Col] dam<br />
tupiar vtr [Col] to dam a stream or river<br />
turba nf peat<br />
turbacidn nf turbation<br />
turbal nm peat bog<br />
turbera nf peat bog | t. emergida upland moor |<br />
T-8<br />
t. sumergida low-level bog<br />
turbidez nf turbidity<br />
turbiedad nf turbidity<br />
turbio,-bia adj turbid<br />
turboglifo nm scour cast | t. intersepto furrow<br />
flute cast<br />
turbulento,-ta adj turbulent<br />
turingiano,-na adj Thuringian<br />
turingiense adj Thuringian<br />
turingita nf thuringite<br />
turmalina nf tourmaline | t. azul. indicolite | t.<br />
roja. rubellite<br />
turmalinizacidn nf tourmalinization<br />
turmalita nf tourmalite<br />
turno nm shift | tour <strong>of</strong> duty<br />
turoliense adj Turolian<br />
turoniano,-na adj Turonian<br />
turoniense adj Turonian<br />
turquesa nf turquoise<br />
tyrrheniense adj Tyrrhenian<br />
tysonita nf fluocerite<br />
tzinapu nm [Mex] obsidian
u<br />
ubicacion nf location, position, site<br />
ubicado,-da adj located<br />
ubicar vtr to locate, spot (as for a well) or plot<br />
(on a map) J vintr to be located, situated or<br />
placed<br />
ubicarse vpr to be located, situated or placed<br />
uchero nm llama dung carrier (llama dung was<br />
used in the patio process <strong>of</strong> amalgamation <strong>of</strong><br />
silver ores)<br />
ufertita nf davidite<br />
uintenseadj Uintan<br />
ulatsiense adj Ulatsian<br />
ulsteriense adj Ulsterian<br />
ultramar nm lapis lazuli, lazurite<br />
ultramilonita nf ultramylonite<br />
ultrarrojo,-ja adj infrared<br />
ultraviolado,-da adj ultraviolet | nm ultraviolet<br />
ultravileta nf ultraviolet<br />
ultravulcaniense adj Ultravulcanian<br />
ulvita nf ulvospinel<br />
ulla nf archaic or incorrect spelling <strong>of</strong> hulla<br />
'coal 1 ,<br />
ullera nf archaic or incorrect spelling <strong>of</strong> hullera<br />
'coal-mine, colliery 1,<br />
ullita nf archaic or incorrect spelling for hullita<br />
'anthracite 1,<br />
umbral nm swell | threshold | u. de circo \ u.<br />
continental swell | u. topografico topographic<br />
doorstep<br />
undacidn nf megafold<br />
undulacion nf undulation, wave<br />
unia"xico,-ca adj uniaxial<br />
uniclinal adj monoclinal<br />
unidad nf unit | u. absoluta absolute unit | u.<br />
bioestratigrafica biostratigraphic unit | u. central<br />
de procesamiento central processing unit | M.<br />
U-l<br />
cronoestratigrdfica cronostratigraphic unit | u.<br />
de cinta magnetica tape drive | u. de disco disk<br />
drive | u. de espaciamiento spacing unit, well<br />
spacing | u. de muestreo sampling unit | u.<br />
eotvos eotvos unit | u. estratogrdfica<br />
stratigraphic unit | u. gravimetrica gravity unit<br />
J u. litoestratigrdfica lithostratigraphic unit | u.<br />
tectonica tectonic unit | u. termica inglesa British<br />
thermal unit (BTU)<br />
unification nf unitization (<strong>of</strong> an oil field)<br />
uniformidad nf uniformity<br />
unirse vpr to coalesce<br />
uneta nf stone cutter's chisel<br />
uralitizacidn nf uralitization<br />
uranico,-ca adj uranic<br />
uramfero,-ra adj uraniferous<br />
uranio nm uranium<br />
urano nm uranium oxide<br />
uranocre nm uranocher<br />
uran<strong>of</strong>ano nm uranophane<br />
uranolito nm meteoric stone<br />
uranopicco nm uraninite, pitchblende<br />
uranosfaerita nf uranosphaerite<br />
uranotantalita nf samarskite<br />
uranothallita nf liebigite<br />
uranotilo nm uranotile<br />
urao nm gaylussite (a form <strong>of</strong> trona)<br />
urgue nm [Col] clay selvage on a vein<br />
uriconiense adj Uriconian<br />
usamerita nf greywacke<br />
utahita nf jarosite | natrojarosite<br />
utahlita nf variscite<br />
utiles nmpl tools, equipment | u. de extraccion<br />
fishing tools j «. de labortorio laboratory<br />
equipment | u. de sondeo drilling tools<br />
uvala nf karst valley, uvala<br />
uwarowita nf uvarovite (variety <strong>of</strong> garnet)<br />
uzbekita nf volborthite
vacia nf wacke | v. gris greywacke<br />
vaciada nf melt | dumping<br />
vaciadero nm dump, tailings pile, spoils bank<br />
vaciado nf emptying | pouring, casting | [Mex]<br />
excavation<br />
vaciador nm worker who dumps waste or slag-<br />
pots | v. de carros car dumper<br />
vaciagris nm greywacke<br />
vaciamar nf ebb tide<br />
vaciante nf ebb tide<br />
vaciar vtr to empty out | to drain | to hollow<br />
out | to sluice <strong>of</strong>f | to discharge water, etc. |<br />
to dump | to bail out a well | [Mex] to<br />
excavate | vpr to flow out<br />
vacio,-ia adj empty | nm vacuum, void |<br />
vacancy<br />
vacisco nm [Almaden, Sp] fines <strong>of</strong> mercury ore<br />
and gangue produced by crushing preparatory<br />
to concentration and smelting<br />
vacuo nm vacuum<br />
vagdn nm ore car | v. carboner coal car | v.<br />
tisterna a railcar load <strong>of</strong> 10 mt petroleum | v. de<br />
bascula, de pica, volcador, or de volquete dumping<br />
or tipper car | v. de mineral ore car<br />
vagonada nf carload<br />
vaguada nf lowest part <strong>of</strong> a valley | watershed,<br />
divide | talweg | channel, watercourse<br />
vaho nm steam | vapor | fumes<br />
vainiforme adj pod-like<br />
valangiano,-na adj Valangian<br />
valangiense adj Valangian<br />
Valencia nf valency, valence<br />
valendisiense adj Valendisian<br />
valentiano,-na adj Llandoverian<br />
valentiense adj Llandoverian<br />
valioso,-sa adj precious<br />
valmeyerense adj Valmeyeran<br />
valor nm value, worth | v. BTU calorific value,<br />
BTU value | v. contable book value | v. de la<br />
inclination degree <strong>of</strong> inclination | v. de la<br />
rotation amount <strong>of</strong> rotation | v. extreme<br />
extreme value | v. limite limit value<br />
valla nf terreplain | embankment<br />
valle nm valley | aclinal | v. antecedente<br />
antecedent valley | v. anticlinal anticlinal valley<br />
| v. colgado hanging valley | v. colgante hanging<br />
valley | v. de aluviones bottom land | v. de<br />
drenaje water gap | v. de erosion erosional valley<br />
V-l<br />
| v. defondo valley with well developed<br />
flood plain | v. defractura tectonic valley | v. de<br />
hundimiento rift valley | v. en artesa trough-<br />
shaped valley | v.enu U-shaped valley | v. en<br />
V V-shaped valley | v. epigenetico<br />
superimposed or antecedent valley | v. glatiar<br />
glacial valley | v. longitudinal longitudinal<br />
valley | v. maduro mature valley | v. seco strath<br />
| v. sinclinal synclinal valley | v. subsecuente<br />
subsequent valley | v. sumergido submerged<br />
valley, firth | v. tectonico structural valley | v.<br />
transversal transverse valley<br />
vanadato nm vanadinite | vanadate<br />
vanadifero,-ra adj vanadiferous<br />
vanadio nm vanadium<br />
vanado-magnetita nf coulsonite<br />
vapor nm vapor | v. vivo steam<br />
vaporar vtr to evaporate<br />
vaporizacidn nf evaporation<br />
vara nf the old <strong>Spanish</strong> yard or rod, which<br />
varies from 0.8 to 1.1 meters (see section on<br />
weights and measures) | stick, rod | v. circular<br />
circular rod | v. de agrimensor measuring rod |<br />
v. de medir measuring rod | v. de topografia<br />
surveyor's rod | v. mdgica divining rod | v.<br />
portabrujula Jacob's staff<br />
varada nf three months <strong>of</strong> work in a mine<br />
vareo nm measuring in varas<br />
vareta nf rod | v. divinatoria divining rod | v.<br />
mdgica divining rod<br />
variable nf variable | v. aleatoria random<br />
variable | v. continua continuous variable | v.<br />
de control control variable | v. de ligazon<br />
conditional varriable | v. discreta discrete<br />
variable | v. endogena endogenous variable | v.<br />
exoogena exogenous variable | v. independiente<br />
independent variable | v. indicatriz indicator<br />
variable | v. latente latent variable | v. normal<br />
normally-distributed variable | variables no<br />
correladonadas uncorrelated variable.<br />
variation nf variation | v. de la aguja compass<br />
variation | v. de tenor variation in grade | v.<br />
secular secular variation<br />
variancia nf variance | v. conditional conditional<br />
variance | v. ligada conditional variance<br />
varilla nf rod | v. divinatoria divining rod | v.<br />
mdgica divining rod<br />
variolitico,-ca adj variolitic<br />
variometro nm variometer<br />
variscico,-ca adj Variscan<br />
varisco,-ca adj Variscan
varva nf varve | v. de arcilla glacial varve | v.<br />
glaciar glacial varve<br />
vaso nm used in the general sense <strong>of</strong> Vessel' to<br />
refer to all sorts <strong>of</strong> smelting and cupellating<br />
vessels and furnaces | [Tepecala, M£x] local<br />
variety <strong>of</strong> a copper refining furnace<br />
vauclusiense adj Vauclusian<br />
vecino,-na adj contiguous<br />
vega nf open plain | oxbow lake | [Col] a small<br />
valley | nfpl flood plain<br />
veinteno nm twentieth, a tax <strong>of</strong> one twentieth<br />
formerly levied on gold production in <strong>Spanish</strong><br />
America<br />
velaje glaciar nm breaking <strong>of</strong>f <strong>of</strong> icebergs from<br />
glaciers<br />
velardenita nf gehlenite<br />
velocidad nf velocity | v. de filtration filtration<br />
rate | v. de una roca [seis] rock speed, speed <strong>of</strong><br />
propagation <strong>of</strong> mechanical waves in rock<br />
vena nf vein | bed | seam | streak or stripe <strong>of</strong><br />
a certain color in a stone | underground<br />
channel for water | v. interfoliada interfoliated<br />
vein<br />
venaje nf quantity <strong>of</strong> water in a river<br />
venera nf spring<br />
venerillo nm [Tipuani, Bol] pay gravel in a<br />
placer<br />
venero nm spring | source | mineralized vein |<br />
mineral deposit | bed or seam | [ Arg] hidden<br />
or blind mineral deposit | [Bol] placer tin<br />
deposit | [Bol, Pe] pay gravel in a placer<br />
venida nf overflow <strong>of</strong> a river<br />
venido nm [M£x] talus, debris<br />
venilla nf veinlet or stringer | small vein<br />
venita nf stringer, veinlet | venite (variety <strong>of</strong><br />
migmatite) | v. de cuarzo quartz stringer<br />
venoso,-sa adj veined<br />
ventaja estructural n/[pet] structural advantage<br />
ventana nf fenster, window | inlier | v. tectonica<br />
structural window<br />
ventanilla nf [Pe] natural opening in rock<br />
ventisquero nm glacier<br />
venturiense adj Venturian<br />
venturina nf aventurine quartz<br />
verada nf foot path, trail<br />
veraneador nm [Col] person who works placers<br />
only during dry season<br />
veraneo nm [Col] working <strong>of</strong> placers during dry<br />
season<br />
verano nm dry season (summer)<br />
vetdeadj green | nm green | verdigris | v.<br />
V-2<br />
esmeralda emerald green<br />
verdemar o^y sea green | nm sea green<br />
verdeoscuro,-ra adj dark green<br />
verdete nm verdigris<br />
verdinegro,-gra adj dark green<br />
verdiones nmpl [Ch] green staining indicative <strong>of</strong><br />
copper mineralization<br />
verdoso,-sa adj greenish<br />
vergencia nf vergence<br />
vermiculado,-da adj vermiculated<br />
vemadskita nf antlerite<br />
verosimilitud nf likelihood<br />
versiliense adj Versilian<br />
vertedera nf [Somorrostro, Sp] inclined shoot<br />
vertice nf apex | [surv] corner | v. de cierre<br />
closing corner | v. de referenda witness corner |<br />
v. testigo witness corner<br />
vertiente nf slope | aspect | drainage area,<br />
watershed, divide | waterfall | spring | [Sp]<br />
brook | v. de agua salada brine spring<br />
vesicula nf vesicle | gall | v. arcillosa clay gall<br />
vestigio nm in assaying or chemical analysis, a<br />
trace | vestige<br />
vesubiana nf vesuvianite | leucitite | mixture<br />
<strong>of</strong> calcite and hydromagnesite<br />
vesubianita nf vesuvianite<br />
vesuliano,-na adj Vesulian<br />
vesuliense adj Vesulian<br />
veta nf vein or lode, generally <strong>of</strong> lesser<br />
importance than a///on | mineralized bed or<br />
seam | streak or stripe in a rock | rib <strong>of</strong> ore in<br />
a vein, leader, or pay-streak | v. al sol vein with<br />
ore exposed at the surface | v. atravesada cross<br />
vein | v. bandeada ribbon or banded vein | v.<br />
boba [Ch] large, unmineralized vein | v.<br />
caldeadaal respaldo vein 'frozen' or 'welded' to<br />
wall rock | v. cateada vein explored by catas or<br />
shallow pits or shafts | v. clavada [Col] vertical<br />
vein | v. clavera spotty vein | v. corrida<br />
continuous vein | v. cortada cross-cutting vein<br />
| v. crucera cross vein | v. de cajon inclined vein<br />
| v. de carbon coal seam | v. de contacto contact<br />
lode | v. de cuarzo cross vein | v. defisura<br />
fissure vein | v. de manto bedded or horizontal<br />
vein | v. de mineral ore vein | v. de relleno de<br />
falla fault vein | v. de resbalon vertical vein | v.<br />
de sombra inclined vein (20° to 60°) | v. de<br />
segregation exudation or segregated vein | v. de<br />
sombra [Col] horizontal vein, manto | v. de tope<br />
bunchy or beaded vein | v. debil weak vein | v.<br />
desigual en mineral spotty vein | v. dislocadora
dislocating vein | v. echada inclined vein | v. en<br />
cola de caballo horse tail vein | v. en conformidad<br />
bedding-plane vein | v. en curia gash vein | v.<br />
en radiacion vein radiating from a common<br />
center with other veins | v. en rosario linked or<br />
amygdaloid vein | v. escalonada ladder vein |<br />
v. eslabonada linked vein | v. estertl barren vein<br />
| v.-filon fissure vein | v. forastera [Ch] newly<br />
discovered vein | v. formal strong vein | v.<br />
interfoliada interfoliated vein | v. jornalera vein<br />
whose yield just covers expenses leaving no<br />
pr<strong>of</strong>it | v. madre main or mother lode | v.<br />
manteada horizontal vein | v. muy tendida flat<br />
vein, bedded vein | v. rechazada dislocated vein<br />
| v. robada [Col] vein which on working shows<br />
signs <strong>of</strong> having been worked before | v. seca<br />
barren vein | v. secundaria secondary vein | v.<br />
sin crestones hidden or blind vein | v. socia<br />
companion vein | v. tabular tabular vein | v.<br />
transversal cross vein<br />
vetarrdn nm a large vein or lode<br />
veteado,-da adj veined<br />
vetica nf veinlet<br />
veticilla nf veinlet<br />
vetilla nf veinlet leader | [Mex] slickensides<br />
vetita nf fiber | stringer | v. de cuarzo quartz<br />
stringer | v. de mineral streak<br />
via nf gallery<br />
vibertita nf bassanite<br />
vibrosismica nf Vibroseis<br />
vicio nm defect, flaw<br />
vicksburgiense adj Vicksburgian<br />
vida nf life | v. media half-life<br />
vidrio nm glass | v. volcanico volcanic glass<br />
vidrioso,-sa adj glassy, vitrious<br />
vilemita nf willemite<br />
villafranqiano,-rta adj Villafranchian<br />
villafranquense nm Villafranchian<br />
vincularse a vpr to be related to | to be bound<br />
or tied to<br />
vindoboniano,-na adj Vindobonian<br />
vindoboniense adj Vindobonian<br />
violana nf violan<br />
virgen adj native as well as virgin, e.g. plata<br />
virgen 'native silver' | pure<br />
virgencia nf virgence<br />
virgiliense adj Virgilian<br />
virgloriano,-na adj Anisian<br />
virgloriense adj Anisian<br />
virguliano,-na adj Virgulian<br />
virguliense adj Virgulian<br />
V-3<br />
viridina nf viridine, manganandalusite<br />
virutas nfpl cuttings | v. de taladro drill cuttings<br />
viscometria nf viscometry<br />
viscometre nm viscometer<br />
viscosidad nf viscosity | v. cinematica kinematic<br />
viscosity | v. extrapolada extrapolated viscosity<br />
viscoso,-sa adj viscous<br />
viseano,-rta adj Visean<br />
visiense adj Visean<br />
visitademinasn/[Potosi, Bol] annual<br />
inspection by royal <strong>Spanish</strong> authorities <strong>of</strong> all<br />
mines and mills<br />
vista nf sight, view | v. en corte cross section | a<br />
la vista in sight<br />
vitreo,-ea adj glassy, vitreous | nf hyaline<br />
vitrico,-ca adj vitric<br />
vitrificacidn nf vitrification<br />
vitrificar vtr to vitrify<br />
vitrinoide nm vitrinoid<br />
vitrifirico,-ca adj vitriphyric<br />
vitri<strong>of</strong>ido nm vitrophyre<br />
vitriolo nm vitriol | v. azul copper sulfate | v.<br />
blanco zinc sulfate | v. de cobre chalcanthite | v.<br />
de marto copperas | v. verde copperas<br />
vitrita nf vitrian | vitrite<br />
vitroclarita nf vitroclarian<br />
vitr<strong>of</strong>idico,-ca adj vitrophyric<br />
vitr<strong>of</strong>iro nm vitrophyre<br />
volastonita nf wollastonite<br />
volatil adj volatile<br />
volatilizacidn nf volatilization<br />
volcado,-da adj inverted, overturned<br />
volcadura nf tilting<br />
volcamiento nm overturning<br />
volcan nm volcano | landslide | [Col] flood | v.<br />
active active volcano | v. apagado or extinto<br />
extinct volcano | v. de barro mud volcano | v.<br />
de cono compuesto composite cone | v. de cono de<br />
cenizas cinder cone | v. de escudo shield volcano<br />
| v. de lodo mud volcano | v. en escudo shield<br />
volcano | v. estratificado stratovolcano | v.<br />
estromboliano strombolian volcano | v.fango<br />
mud volcano | v. hawaiano Hawaiian or shield<br />
volcano | v. peleano Peleean volcano | v.<br />
submarino submarine volcano<br />
volcanicidad nf volcanism<br />
volcanico,-ca adj volcanic<br />
volcanismo nm volcanism<br />
volcanista nm volcanist<br />
volcanita nf volcanite<br />
volcanogenico,-ca adj volcanogenic
volcar vtr to invert, overturn | to dump<br />
volframifero,-ra adj tungsten-bearing,<br />
tungstiferous<br />
volframio nm wolframite<br />
volframita nf wolframite<br />
voltear vtr to dump | to overturn<br />
volumen nm volume | v. de los poros pore<br />
volume | v. de roca rock volume | v. poroso<br />
pore volume<br />
volum£trico,-ca adj volumetric<br />
volumetro nm volumeter<br />
vomito nm [Col] outcrop<br />
voragine nf whirlpool<br />
vortice nm whirlpool<br />
vraconiense adj Vraconian<br />
vuelco nm tilting, overturning | dumping | v.<br />
de estratos tilting <strong>of</strong> beds<br />
vuelta nf whorl | oxbow (<strong>of</strong> a river) |<br />
[Almade"n, Sp] one complete operation in the<br />
Bustamente or aludel furnace | dor v. la plata<br />
[Mex] to refine silver<br />
vulcanismo nm volcanism<br />
vulcanologia nf volcanology<br />
vulcanologista nm volcanologist<br />
vulcanologo,-ga nm and nf volcanologist<br />
vulfenita nf wulfenite<br />
V-4
w<br />
Waaliense nm Waalian<br />
waca nf wacke<br />
wacka nf wacke<br />
wackenrodita nf wachenrodite<br />
waldheimita nf actinolite<br />
walkerita nf pectolite<br />
walmstedtita nf breunerite<br />
walpurgina nf walpurgite, waltherite<br />
walpuigita nf walpurgite, waltherite<br />
waltherita nf walpurgite, waltherite<br />
Waltonense nm Waltonian<br />
waluewita nf xanthophyllite<br />
walleriannm hornblende<br />
wallerita nf greenstone<br />
wallongita nf wallongongite<br />
warrenita nf owyheeite or jamesonite |<br />
Pennsylvania oil (paraffin rich hydrocarbons)<br />
warringtonita nf brochantite<br />
warthita nf blodite<br />
warwicita nf warwickite<br />
Wasatchiense nm Wasatchian<br />
washingtonita nf ilmenite<br />
Washitense nm Washitan<br />
wasita nf impure allanite<br />
Waucobense nm Waucoban<br />
waudi nm wadi<br />
way nm oreway, chimney feeding an ore pass<br />
Wealdense nm/adj Wealden<br />
webnerita nf andorite<br />
webskyita nf fibrous serpentine<br />
weibyeita nf bastnesite<br />
weinschenkita nf churchite<br />
weissiannm scolecite<br />
weissigita nf lithium allanite<br />
Wemmelense nm Wemmelian<br />
wenlockiense nm/adj Wenlock<br />
wentzelita nf hureaulite<br />
werfeniano,-na adj Werfenian | nm Werfenian<br />
werfeniense nm/adj Werfenian<br />
werhemannita nf aluminite<br />
wernerismo nm Neptunism<br />
werneritizacion nf dipyritization<br />
weslienita nf romerite<br />
westanita nf altered andalusite<br />
W-l<br />
westfaliano,-na adj Westphalian<br />
westfaliense nm/adj Westphalian<br />
westgrenita nf bismutomicrolite<br />
Weybourniense nm Weybournian<br />
whartonita nf nickeliferous pyrite<br />
wheeleriense nm/adj Wheelerian<br />
Whitbense nm Whitbian<br />
whitcliffiense nm/adj Whitcliffian<br />
whitherita nf witherite<br />
whitneyense nm/adj Whitneyan<br />
wiborgita nf viborgite (obs, rapakivi granite)<br />
wichtina nf wichtisite (obs, vitrophyritic<br />
diabase)<br />
wilcoxiense nm/adj Sabinian<br />
wilhemita nf willemite<br />
wilinita nf idocrase<br />
wiltshireita nf rathite<br />
williamsita nf antigorite<br />
winche nm winch<br />
winchellita nf lintonite<br />
wisconsinense nm/adj Wisconsinan<br />
wiserina nf anatase | xenotime<br />
wismutaurita nf native gold containing up to 3<br />
percent bismuth<br />
wittichita nf wittichenite, klaprothite<br />
wittingita nf altered rhodonite<br />
wocheinita nf bauxite<br />
wolchita nf bournonite<br />
wolfachita nf mixture <strong>of</strong> gersdorfite and<br />
ullmanite<br />
wolfcampiense nm/adj Wolfcampian<br />
wolfram nm tungsten | wolframite | w. blanco<br />
calcium tungstate<br />
wolframifero,-ra nf tungsten-bearing,<br />
tungstiferous<br />
wolframio nm wolfram<br />
wolfsbergita nf chalcostibite<br />
wolftonita nf hetairite<br />
wolnina nf barite<br />
wolnymwm barite<br />
wollongita nf wollongongite (a carbonaceous<br />
shale)<br />
woodbiniense nm/adj Woodbinian<br />
woodfordita nf ettringite<br />
worobieffita nf cesium and lithium beryl<br />
wurtzilita nf asphaltic pyrobitumin
xairo,-ra adj [Col] skew, oblique<br />
xalostocita nf landerite (par grossularite)<br />
xanotoxeno nm xanthoxenite<br />
xanthokon nm a variety <strong>of</strong> diamond<br />
xantiosita nf xanthiosite<br />
xantita nf xanthite (par vesuvianite)<br />
xantoarsenita nf sarkinite<br />
xantoconita nf xanthoconite<br />
xantocroita nf greenockite<br />
xant<strong>of</strong>ilita nf clintonite<br />
xantopirita nf pyrite<br />
xantorita nf xanthorthite (altered allanite)<br />
xantosiderita nf goethite<br />
xantoxenita nf xanthoxenite<br />
xantiosita nf xanthiosite<br />
xantotitano nm xanthitane (alteration product <strong>of</strong><br />
sphene)<br />
xenoblastico,-ca adj xenoblastic<br />
xenoblasto nm xenoblast<br />
xenobloque nm xenolith | erratic block<br />
xenocristal nm xenocryst<br />
xenocristo nm xenocryst<br />
xen<strong>of</strong>iro nm xenophyre (obs, dike)<br />
xenogenito,-ta adj epigenetic<br />
xenogenuoso,-sa adj epigenetic<br />
xenoiquico,-ca adj xenoikic (obs, poikilitic)<br />
xenolita nf xenolite | xenolith<br />
xenolitico,-ca adj xenolithic<br />
xenolito nm xenolith<br />
xenom6rfico,-ca adj xenomorphic<br />
xenomorfico-granular adj xenomorphic<br />
xenomorfismo nm xenomorphism<br />
xenomorfo nm xenomorph<br />
xenon nm xenon | x.-x. xenon-xenon<br />
xenoporfiritico,-ca adj xenoporphyritic<br />
xenotermal adj xenothermal<br />
xenotima nf xenotime<br />
xenotina nf xenotime<br />
xenotipala nf cenotypal<br />
xenotoba nf xenotuff<br />
xenotopico,-ca adj xenotopic<br />
xerico,-ca adj xeric<br />
xerotennico,-ca adj xerothermic | nm<br />
xerothermic<br />
xihuitl nm [Me"x.] turquoise<br />
xilantita nf fossil wood<br />
xiloide nm xyloide<br />
xilito/-ta adj xyloid | nm xyloide<br />
xilopalo nm wood opal, opalized wood<br />
xilotilo nf xylotile<br />
xylantita nf xylanthite<br />
xylenita nf xylenite, xylinite<br />
xylinita nf xylenite, xylinite<br />
xylinoide nm xylinoid<br />
xylita nf xylith, xylite | Fe-palygorskite<br />
xylito nm xylith, xylite<br />
xylochloro nm green apophyllite<br />
xylocriptita nf xylokryptite (par schererite)<br />
xyloide adj xyloid<br />
xylolitha nf petrified wood<br />
xylopal nm wood opal<br />
xylotilo nm xylotile (probably an altered<br />
chrysotile asbestos) | fibrous serpentine<br />
xylovitrian nm euvitrian<br />
xylovitriano nm euvitrian<br />
X-l
yacente adj lying, deposited | nm footwall<br />
yacer vintr to be lying down, deposited | to be<br />
located | y. con to lie or be deposited with | y.<br />
con discordancia to lie discordantly<br />
yaciente adj lying, deposited | nm footwall<br />
yacimiento nm bed, deposit | ore deposits | y.<br />
agotado exhausted deposit, worked out deposit<br />
| y. anticlinal deposit occuring within an<br />
anticline | y. con capo, gastfera oil field with a<br />
gas cap | y. de carbon coal deposit | y. de<br />
condensado condensate deposit | y. de contacto<br />
contact metamorphic deposit | y. de hierro de<br />
los pantanos bog iron ore deposit | y. de<br />
impregnation impregnation or disseminated<br />
deposit | y. de magma liquido liquid magmatic<br />
deposit | y. de segregation segregation deposit |<br />
y. de substitution replacement deposit | y. en<br />
aluviones placer deposit | y. en masa massive<br />
deposit | y. epigenetico epigenetic deposit | y.<br />
epitermal epithermal deposit | y. escondido blind<br />
or buried deposit | y. estratificado stratified<br />
deposit | y. estratiforme stratiform deposit | y.<br />
filoniano vein deposit | y. hipogenico hypogene<br />
deposit | y. hipotermal hypothermal deposit |<br />
y. hullero coal field | y. lenticular alargado shoe<br />
string sand deposit | y. magmdtico magmatic<br />
deposit | y. mesotermal mesothermal deposit |<br />
y. metalifero metalliferous mineral deposit | y.<br />
metasomdtico metasomatic deposit | y. mineral<br />
mineral deposit | y. no metdlico non-metallic<br />
mineral deposit | y. pegmatitico pegmatitic<br />
deposit | y. petrohfero oil filed | y. plutonico<br />
plutonic deposits | y. pneumatolitico<br />
pneumatolytic deposit | y. primario primary or<br />
hypogene deposit | y. salino saline or evaporite<br />
deposits | y. secundario secondary or supergene<br />
deposit | y. singenetico syngenetic deposit | y.<br />
submarino de hidrocarburos <strong>of</strong>fshore<br />
hydrocarbon deposit | y. superficial surface or<br />
surficial deposit | y. supergenico supergene<br />
deposit | y. subvolcdnico subvolcanic deposit |<br />
y. tabular tabular deposit | y. virgen<br />
unexploited deposit<br />
yakutense adj Yakutsk | nm Yakutsk<br />
Yakutskense nm Yakutsk<br />
yalakomita nf [BC, Mex] yalakomite (a<br />
serpentmized ultrabasic rock used as a<br />
decorative stone)<br />
Y-l<br />
yamagutilita nf oyamalite (var zircon)<br />
yamasquita nf yamaskite (obs, amphibole<br />
jacupirangite)<br />
yanacona nm a miner who works a mine leased<br />
from an absentee owner<br />
yanolita nf axinite<br />
yapa nf mercury added to silver ore to facilitate<br />
extraction<br />
yapar vtr to add mercury to silver ore<br />
yarda nf yard <strong>of</strong> three feet | y. cuadrada square<br />
yard | y. cubica cubic yard | y. graduada de<br />
medir yardstick<br />
yardaje nm yardage<br />
yareta nf [Bol, Pe, Ch] a resinous moss found in<br />
the Altiplano and used as a fuel<br />
Yarmouth nm Yarmouthian<br />
yasa nf dry stream<br />
yauca nf [Pe] a smooth, black clay with greasy<br />
lustre found in veins<br />
yeatmanita nf yeatmanite<br />
ye"bel nm mountain, djebel, jebel<br />
yelero nm [Ve] a windy place on a snow-capped<br />
mountain<br />
yenita nf ilvaite<br />
Yeovilense nm Yeovilian<br />
yerba nf a flaw in an emerald<br />
yermo^maa^/ uninhabited | nm desert<br />
yesal nm gypsum mine | gypsum deposit<br />
yesarnm gypsum mine | gypsum deposit<br />
yesera nf gypsum pit | gypsum kiln<br />
yeseria nf gypsum kiln<br />
yesero,-ra adj plaster | nm preparer and vendor<br />
<strong>of</strong> gypsum<br />
yesifenvra adj containing gypsum, gypsiferous<br />
yeso nm gypsum | chalk | plaster | y. anhidro<br />
anhydrous plaster | y. arenoso gypsum sand |<br />
y. bandeado banded gypsum | y. blanco whiting,<br />
finishing plaster | y. de enlucir gypsum plaster<br />
| y. de estucar gypsum plaster | y. de Paris<br />
plaster <strong>of</strong> Paris | y. de vatiar casting plaster | y.<br />
duro cement plaster | y. en cola de golondrina<br />
selenite | y. espdtico selenite | y. especular<br />
selenite | y. fetido bituminous gypsum | y.<br />
fibroso fibrous gypsum | y. mate plaster <strong>of</strong> Paris<br />
| y. negro patent-plaster | y. selenita selenite<br />
yesdnnm gypsum cap | chunk <strong>of</strong> plaster<br />
yesoso,-sa adj gypseous, rich in gypsum |<br />
chalky<br />
yesosos nmpl [Aguascalientes, M6x] copper ores<br />
having a calcite or flourite matrix<br />
yneziense adj/nm Ynezian
yodado,-da adj iodized | containing iodine<br />
yod&ivtr to iodize<br />
yoda'rgira nf iodargyrite<br />
yodaigirita nf iodargyrite<br />
yodato nm iodate<br />
yoderita nf yoderite<br />
yodico,-ca adj iodic<br />
yodirita nf iodargyrite<br />
yodo nm iodine | y.-amonio ammonium iodate<br />
yodobromita nf iodian bromargyrite<br />
yodoembolita nf iodargyrite<br />
yodostonolita nf manganese pyrochlore<br />
yoduracidn nf iodization<br />
yodurado/-da adj iodized<br />
yodurar vtr to iodize<br />
yoduro nm iodide | y. de hidrogeno hydroiodic<br />
acid | y. de plata iodargyrite, iodyrite | y.<br />
mercuriosos mercurious iodine<br />
yohidrico,-ca adj hydroiodic<br />
yohnstonolita nf manganese pyrope<br />
yohnstrupita nf mosandrite<br />
Yorkiense nm Yorkian<br />
yosemitgranitico/-ca adj granitic<br />
ypresiano,-na adj Ypresian<br />
Ypresense nm Ypresian | adj Ypresian<br />
yterbio nm ytterbium<br />
ytrio nm yttrium<br />
ytriogranate nm yttrian garnet<br />
ytroilmenita nf samarskite<br />
ytterbita nf gadolirdte-(Y)<br />
ytterita nf tengerite<br />
Y-2<br />
yttrialita nf thorium thalenite<br />
yttrita nf gadolinite-(Y)<br />
yttriumapatito nm yttrium apatite<br />
yttrobetafita nf yttrobetafite<br />
yttrocalcita nf yttrian fluorite<br />
yttrocerita nf cerian fluorite<br />
yttrocolombita nf samarskite<br />
yttr<strong>of</strong>luorita nf yttrian fluorite<br />
yttrogummita nf altered uraninite<br />
yttrohatchettolita nf uranpyrochlore<br />
yttroniobita nf samarskite<br />
yttro-ortita nf allanite-(Y)<br />
yttropirocloro nf yttropyrochlore<br />
yttrotitanita nf yttrium titanite<br />
yu nm yu (var jade)<br />
yuconita nf yukonite<br />
yuksporita nf pectolite.<br />
yungas nf [Ch, Pe, Bo] humid valleys on the east<br />
side <strong>of</strong> the Andes<br />
yusano,-na adj in a lower place (i.e. the<br />
footwall)<br />
yusente adj that rises or falls with the ebb tide |<br />
n.f. ebb<br />
yusero,-ra adj in a lower place (i.e. the footwall)<br />
yuso adv below (i.e. in the footwall)<br />
yuxtaponer vtr to juxtapose<br />
yuxtaposicidn nf juxtaposition<br />
yuxtapuesto,-ta adj juxtaposed<br />
yuxtalineal adj juxtalinear<br />
yuxtaposicidn nf juxtaposition
zabaleta nf [Linares, Sp] ash-pit <strong>of</strong> a furnace<br />
zaborra nf paving stone | gravel, grit |<br />
screenings | fragments<br />
zaborro nm [Sp] chunk <strong>of</strong> plaster<br />
zaca nf a large leather bag, like an oversize<br />
wine-skin (zaque) used to bail water out <strong>of</strong> a<br />
mine<br />
zafareche nm lake | reservoir<br />
zafir nm archaic spelling <strong>of</strong> zafiro<br />
zafireo,-ea adj sapphire-colored<br />
zafirino,-na adj sapphirine, sapphire-colored |<br />
nf blue chalcedony or agate<br />
zafirita nf a variety <strong>of</strong> blue chalcedony<br />
zafiro nm sapphire | ultramarine, lapis lazuli |<br />
z. amarillo yellow topaz, oriental topaz | z.<br />
asteria star sapphire | z. azul blue hyaline<br />
corundum | z. azul hembra light blue hyaline<br />
corundum | z. azul macho dark blue hyaline<br />
corundum | z. blanco colorless sapphire, white<br />
sapphire | z. calcedonioso milky blue sapphire<br />
| z. de agua gem cordierite | z. del Brasil blue<br />
tourmaline, indicolite | z. Du Puy Du Puy<br />
sapphire (from Expailly, near Du Puy, France)<br />
| z, estrellado sapphire with asterism | z. falso<br />
pink tourmaline | z. girasol girasol sapphire |<br />
z. ojo de gato cat's-eye sapphire | z. oriental<br />
light blue sapphire, oriental sapphire | z. rojo<br />
oriental ruby, red corundum | z. verdadero<br />
saffire | z. verde oriental emerald, green<br />
hyaline corundum | z. violeta oriental<br />
amethyst, violet hyaline corundum<br />
zafra nf gangue, waste rock<br />
zafre nm zaffer or zaffre, an oxide <strong>of</strong> cobalt<br />
zafrero nm common laborer in a mine (usually<br />
applied to muckers)<br />
zagalone nm [Cartagena and Almagrera, Sp]<br />
youth employed as an orebearer<br />
zahen adj <strong>of</strong> fine gold, generally in the case <strong>of</strong><br />
coinage<br />
zahena nf doubloon, an old <strong>Spanish</strong> coin<br />
zahondar vtr to sink | vintr to deepen<br />
zahorra nf ballast stone<br />
zala nf borax<br />
zamarra nf slab | bloom <strong>of</strong> a Catalonian forge<br />
zamboninita nf mixture <strong>of</strong> fluorite and sellaite<br />
| nontronite<br />
zambullidor nm [Col] workman who dives<br />
underwater to recover auriferous gravels<br />
Z-l<br />
zambullir vtr [Col] to extract auriferous<br />
gravels from a streambed by diving, with the<br />
assistance <strong>of</strong> ladders, poles etc., the gravels<br />
usually being collected in bateas for washing<br />
zancleano,-na nm/adj Zanclean<br />
zangarro nm [Asientos, Me"x] small mill<br />
zanja nf ditch, channel, trench | trench,<br />
cutting, or pit, such as those dug to prospect<br />
for ores | [Arg, PR] ravine, gully | z. de<br />
exploration test trench | z. de lodo mud pit | z.<br />
de prestamo borrow pit<br />
zanjadora nf ditching machine, ditcher<br />
zanjar vtr to dig a ditch or trench (note: used<br />
figuratively, zanjar means to overcome some<br />
difficulty or obstacle)<br />
zanjeador nm ditch digger<br />
zanjeadora nf ditcher<br />
zanjear vtr to dig a ditch<br />
zanjeo nm ditching, ditch digging | underhand<br />
s toping<br />
zanjdn nm large or deep ditch or trench | [Arg]<br />
steep gully | [PR] solution corridor<br />
zanoga nf glacial cirque<br />
zapa nf sapping, undermining, or trenching as<br />
military engineers did in the days <strong>of</strong> seige<br />
warfare | intermediate galleries driven<br />
between main galleries<br />
zapadora nf excavator<br />
zapapico nm pick-axe, mattock<br />
zapar vtr to undermine | to excavate<br />
zaranda nf sieve, screen, or riddle, either used<br />
by hand (de mano) or mechanical<br />
zarandado,-da adj sieved, screened<br />
zarandador,-dora nm/nf screener, siever<br />
zarandar vtr to sift, sieve, screen<br />
zarandear vtr to sift, sieve, screen<br />
zarandeo nm sifting sieving, or screening | z.<br />
grosero rough screening<br />
zarandero,-ra nm or nf sifter, screen tender<br />
zarandillo nm small sieve<br />
zarco,-ca adj light blue<br />
zarda nf [Arg] a type <strong>of</strong> bit used for drilling<br />
wells<br />
zarzo nm ro<strong>of</strong> timber in a mine<br />
zemorriense nm/adj Zemorrian<br />
zenit nm zenith<br />
zenital adj azimuthal<br />
ze<strong>of</strong>ilita nf zeophyllite<br />
zeolita nf zeolite | z. azul lazulite | z. baritica<br />
barium zeolite | z. bronceada dark stilbite | z.<br />
calcica calcium zeolite | z. cubica chabazite | z.
caldfera calcium zeolite | z. de Borkhult<br />
zeolitized anorthite | z. de Bretana laumontite<br />
| z. de Edelfors edelforsite | z. de Sudermania<br />
spodumene | z. de Suecia spodumene | z. del<br />
Cabo prehnite | z. dura analcime | z. ferrica<br />
iron zeolite | z. harinosa laumontite | z.<br />
manganesica manganese zeolite | z. nacarada<br />
stilbite | z. potasica potassium zeolite | z.<br />
radiada mesolite | z. roja edelforsite | z. sodica<br />
sodium zeolite | z. sodicalda sodium-calcium<br />
zeolite<br />
zeolitico,-ca adj zeolitic<br />
zeolitizacidn nf zeolitization<br />
zermattita nf chiysotile | antigorite<br />
zeugira nf metabrushite<br />
zeuxita nf acicular ferrous tourmaline<br />
zeylanita nf ceylonite<br />
zeyringita nf calcite | aragonite<br />
zeyssatita nf randanite<br />
zianita nf kyanite<br />
ziguelina nf a brick-red var cuprite (mixed with<br />
limonite) | dolomite with finely disseminated<br />
cinnabar<br />
zigzag nm zigzag | en z. staggered<br />
zigzaguear vtr to zigzag<br />
zillerita nf tremolite-actinolite asbestos (var<br />
mountain cork)<br />
zillerthita nf tremolite-actinolite asbestos (var<br />
mountain cork)<br />
zimapanita nf zimapanite (a rejected mineral<br />
species)<br />
zinalsita nf zinalsite<br />
zinc nm zinc | z. carbonatado smithsonite | z.<br />
electrotermico electrothermic zinc | z.<br />
hidrocarbonatado hydrozincite, calamine | z.<br />
oxidado silidfero calamine, hydrozincite<br />
zincaluminita nf zincaluminite<br />
zincazurita nf mixture <strong>of</strong> zinc sulfates and<br />
copper carbonates<br />
zincifero,-ra adj zinc-bearing/ zinciferous<br />
zincobotriogen nm zincobotryogen<br />
zincocalcita nf zinc calcite<br />
zinc<strong>of</strong>errita nf franklinite<br />
zincolivenita nf zinc olivine<br />
zinconisa nf hydrozincite, calamine<br />
zincoschefferita nf zinc schefferite<br />
zincosita nf zinc sulfate<br />
zincoso,-sa adj zincous<br />
zincrodocrosita nf zinc rhodochrosite<br />
zincromerita nf zinc romerite<br />
zincsiderita nf zinc siderite<br />
Z-2<br />
zincteallita nf mixture <strong>of</strong> teallite and wurtzite<br />
zinkaragonito nm nicholsonite<br />
zinkboothita nf zinc boothite<br />
zinkhausmannita nf hetairite<br />
zinkisa nf tin sulfide<br />
zinkita nf zincite<br />
zinkmelanterita nf zinc melanterite<br />
zinkosita nf zinc sulfate<br />
zinkphyllita nf hopeite<br />
zinntitanita nf stanniferous<br />
sphene<br />
zinopel nm red jasper mixed with gold-bearing<br />
pyrite<br />
zinque nm zinc (archaic spelling)<br />
ziquitumba nf dewatering <strong>of</strong> a mine by hand<br />
labor<br />
zircarbita nf zirconium carbonate<br />
zirc<strong>of</strong>ilita nf zircophyllite<br />
zircdn nm zircon | z. favas baddeleyite<br />
zirconiana nf zincan syenite<br />
zirconio nm zirconium<br />
zirconita nf zircon<br />
zircdn-jacinto nm rosembuschite<br />
zircdn-pectolita nm rosembuschite<br />
zirconolita nf zirkelite<br />
zircosulfato nm zircosulfate<br />
zirkita nf mixture <strong>of</strong> zircon and baddeleyite<br />
zirk<strong>of</strong>ilita nf zircophyllite<br />
zirlita nf allophane<br />
ziszds nm zigzag | en z. staggered<br />
zoantariense nm Zoantarian<br />
zoblitzita nf serpentine<br />
zdcalo nm basement, continental platform | z.<br />
continental continental shelf, continental plain<br />
| z. estable table shelf or platform | z. insular<br />
insular shelf | z. Idbil tectonically formed<br />
platform or shelf | z. liminar continental plain<br />
zocollar vtr [Ec] to clear land (preparatory to<br />
mining)<br />
zoesita nf fossiliferous chalcedony<br />
zoisitaoligoclasapegmatita nf oligoclase zoisite<br />
pegmatite<br />
zona nf zone. | area (as in la zona estudiada 'the<br />
study area 1) | region, belt (as in zona<br />
mineralizada 'mineralized region' or Ijelt.') |<br />
layer or band <strong>of</strong> mineral in a vein (as in zonas<br />
de cuarzo, 'quartz bands') | z. abisal abyssal<br />
zone | z. abismal abyssal zone | z. aciete-agua<br />
oil-water contact | z. aclinal aclinal area | z.<br />
afotica aphotic zone | z. alterada [seis]<br />
weathered zone | z. batial bathyal zone | z.
tiega [seis] blind zone | z. comprobada proven<br />
zone | z. contaminada contaminated zone | z.<br />
contigua contiguous zone | z. cortical upper<br />
crust | z. costera coastal zone (to 200 m depth)<br />
| z. de ablation ablation area | z. de acumuladon<br />
accumulation zone | z. de aeration zone <strong>of</strong><br />
suspended water | z. de agotamiento zone <strong>of</strong><br />
depletion | z. de alteration alteration zone. | z.<br />
de anamorfismo anamorphic zone | z. de<br />
arrancjtte root zone | z. de Beni<strong>of</strong>f Beni<strong>of</strong>f zone<br />
| z. de capos plegadas folded zone | z. de<br />
capilaridad capillary fringe | z. de cementation<br />
zone <strong>of</strong> cementation | z. de cizalladura shear<br />
zone | z. de cizallamiento shear zone | z. de<br />
contacto contact zone | z. de deposition zone <strong>of</strong><br />
deposition | z. de derrumbamiento zone <strong>of</strong><br />
caving (in a well) | z. de desarollo development<br />
zone, pay zone | z. de descargo zone <strong>of</strong><br />
discharge | z. de dislocation fault zone | z. de<br />
drenaje drainage area | z. de erosion zone <strong>of</strong><br />
erosion | z. de explotadon producing zone | z.<br />
defalias fault zone, zone <strong>of</strong> faulting | z. deflujo<br />
zone <strong>of</strong> flow or plastic flow | z. de<br />
fracturamiento or fracturation fracture zone | z.<br />
de hundamiento zone <strong>of</strong> subsidence | z. de<br />
iluviacion zone <strong>of</strong> illuviation | z. de infiltration<br />
zone <strong>of</strong> infiltration | z. de inundation flood<br />
area | z. de invasion invasion zone | z. de<br />
inyection injection zone | z. de las coratnas (30-<br />
90 m water depth) | z. de las laminarias (0-30 m<br />
water depth) z. de fos corales (100-500 m water<br />
depth) | z. de meteorization zone <strong>of</strong> weathering<br />
| z. de mobilidad asthenosphere | z. de perdida<br />
de circulation de lodo lost circulation zone | z.<br />
de saturation saturation zone | z. de saturation<br />
intermitente zone <strong>of</strong> intermittent saturation | z.<br />
de sedimentation zone <strong>of</strong> deposition | z. de<br />
transformation metamorfica metamorphic<br />
transformation zone | z. de transition<br />
transition zone | z. de trituracion crush zone |<br />
z. de turbulentia zone <strong>of</strong> turbulence | z. de<br />
vortices whirl-zone | z. defe»7 weak zones in the<br />
crust that form geosynclines | z. disfotica<br />
dysphotic zone | z. eufotica euphotic zone | z.<br />
explotada stope | z. externida external zone (in<br />
alpine folding) j z. fallada fault zone | z. /irme<br />
terra firma | z./fwida lower crust | z.<br />
fracturada fracture zone | upper crust | z.<br />
glacial glacial zone | z. infiltrada infiltration<br />
zone | z. intermedia intermediate belt | that<br />
part <strong>of</strong> a geosyncline where mountain-<br />
Z-3<br />
building occures | z. internida internal zone (in<br />
alpine folding) | z. inundada flooded zone | z.<br />
Umite limiting zone | z. litoral coastal zone | z.<br />
medianida zone <strong>of</strong> folding | z. medida zone <strong>of</strong><br />
folding | z. mesida zone <strong>of</strong> folding | z.<br />
metamorfido zone <strong>of</strong> maximum metamorphism<br />
| z. miogeosinclinal miogeosyncline | z.<br />
miomagmdtica miogeosyncline | z. muerta dead<br />
zone | z. no comprobada unproven zone,<br />
untested area | z. petrolifera oil zone | z.<br />
plegada folded zone | z. po/or polar zone | z.<br />
por escalones stoping ground | z. por escalones<br />
en escalon stoping level | z. positiva positive<br />
segment [<strong>of</strong> earth's crust] | z. productora<br />
productive zone, producing zone | z. rigida<br />
stable zone | z. stsmica seismic zone or area |<br />
z. de sombra [gephys] shadow zone | z.<br />
templada temperate zone | z. torrida torrid<br />
zone | en z. [cryst] zoned<br />
zonacion nf zonation. | z. metasomatica<br />
metasomatic zoning<br />
zonado,-da adj zoned<br />
zonal adj zonal<br />
zonalidad nf zonality, zoning<br />
zonamiento nm zoning<br />
zonar adj zoned compositionally (as for a<br />
magma)<br />
zonga nf [Col] rubble stone<br />
zonificacidn nf zoning<br />
zonita nf [Ariz] local term for multicolored<br />
chert and jasper<br />
zonizacidn nf [Arg] zoning<br />
zonoclorita nf zonochlorite (par pumpellyite)<br />
zonulo nm zonule<br />
zo<strong>of</strong>£smico,-ca adj zoophasmic<br />
zo6geno,-na adj <strong>of</strong> organic origin<br />
zoolita nf sedimentary rock formed exclusively<br />
or predominantly from animal remains |<br />
biolith | zoolith<br />
zoolito nm fossilized animal<br />
zopetero nm embankment, slope<br />
zorgita nf mixture <strong>of</strong> claustalite, tiemannite,<br />
and umangite<br />
zorra nm [Bol] flatcar used in a mine to carry<br />
equipment | [Mex] assistant who carried a<br />
light for the chief miner when the latter went<br />
underground<br />
zubia nf channel, pool, swamp<br />
zuloagense nm/adj Zuloagan<br />
zunyita nf zunyite<br />
zurdo nm a shaft sunk opposite the dipping
side <strong>of</strong> a vein, (this is, <strong>of</strong> course, opposite from<br />
the side <strong>of</strong> a vein one normally sinks a shaft<br />
on, unless one intends to stope from below;<br />
hence, the use <strong>of</strong> zurdo, which normally means<br />
'lefty' or 'southpaw 1, and in Hispanic cultures<br />
carries negative and unlucky connotations)<br />
zurlia nf mellilite<br />
zurrapa nf dregs, lees or sediment | raw<br />
sulpher containing 5 to 6% impurities<br />
zurrapiento,-ta adj muddy, turbid<br />
zurraposo,-sa adj muddy, turbid<br />
zurrdn nm leather bag or sack, holding about<br />
150 Ibs., used to haul ore<br />
zurronero nm workman who carries ore or<br />
waste in a zurron<br />
Z-4