Description
Spanish Colonists
Commodities
PrimaryTin, Silver, Gold
TertiaryZinc, Copper, Lead
Commodity typeM
Deposit
Model77: Sn-polymetallic vein
Deposit sizeS
Materials
Ore mineralsCassiterite, Galena, Gold, Proustite, Sphalerite, Tetrahedrite
GangueAlunite, Barite, Jarosite, Pyrite, Quartz
Geology
Host rockQuartzite,Siltstone,Tuff,Quartz Latite · Llallagua;Cuzco
StructureN30-40w Syncline, Diatreme (Vent For Tuff), Quartz Latite Volcanic Dome Intruding Margin Of Diatreme
AlterationAlteration Zone 3 Km Long And 1.7 Km Wide Oriented Ne-Sw With Central Zones Of Sericitization And Disseminated Pyrite, Zoning Outward Through Argillic To Propylitic. Silicification Is Limited To Vein Selvages, Silurian Sediments, And Zones Of Argillic Alteration, Particularly In The Upper Part Of The Volcanic Dome. The Diatreme Is Stongly Propylitized.
Economic & production
Development statusProducer
Production years1873-1911, 1934-1936
Identification
Deposit ID10006312
MRDS IDBL20307
RegionSA
Data scoreC
Coordinates-20.01287, -66.55363
References
UNDP, 1989, EL ASIENTO: YACIMIENTOS DE METALES PRECIOSOS DE BAJA LEY Y GRAN VOLUMEN: PROYECTO BOL/87/12 FOLLETO TECNICO PROMOCIONAL, 14 P.ESPINOZA, O.A., 1989, INFORME GEOLOGICO MINERO DEL ASIENTO: MINTEC, INFORME INTERNO.GUSTAVSON ASSOC., 1992, COMPENDIUM OF THE ECONOMIC GEOLOGY OF BOLIVIAPINTO V., J., 1988, MODELO CONCEPTUAL Y EVALUACION DE METALES PRECIOSOS EL ASIENTO, POTOSI, BOLIVIA: UNDP PROYECTO BOL/87/012 INFORME INTERNO, 30 P.AHLFELD, F., AND SCHNEIDER-SCHERBINA, A., 1964, LOS YACIMIENTOS MINERALES Y DE HIDROCARBUROS DE BOLIVIA: DEPARTAMENTO NACIONAL DE GEOLOGIA BOLETIN 5, P. 297.UNITED NATIONS DEVELOPMENT PROGRAM STUDY 1988-1989 (PINTO, 1988; UNDP, 1989CIMRI