Mine detail: Pircas Mine

Previously called 'PotosiSan MiguelNueva GrandaChocayaPirquitas'

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Location

Lat / long:

-22.68253, -66.53612

Resource(M)

Primary:	Tin, Silver
Ore:	Argentite, Cerargyrite, Miargyrite, Polybasite, Proustite, Silver, Stannite, Stephanite, Tetrahedrite
Gangue:	Alunite, Anglesite, Ankerite, Boulangerite, Chalcopyrite, Galena, Jarosite, Kaolin, Limonite, Malachite, Marcasite, Pyrite, Sphalerite
Orebody form:	OVAL, ORIENTED WNW
Discovery year:	1934

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer
First production started:	1936

Geology

Host rock:	Acoite Formation
Host type:	Shale,Sandstone
Associated rock:	Galan Formation
Associated type:	Dacite
Structure:	High Plateau, Undrained Basins, N-Trending Steep Fault Block Ranges And Gentler Anticlinal Structures, Extinct Qat Volcanoes To West, Overturned Folds, 2 Main Faults (No Data On Trend) A Smaller System Of Vein-Filled Faults Of Tert Age
Tectonic:	Magmatic Arc
Alteration processes:	Hydrothermal Alteration, Sericitization, Pyritization

References

MRDS	W002093
DEP	10068835
Reference	{Deposit:: ANGELELLI, V., FERNANDEZ LIMA, J.C., HERRERA, A., AND ARSTARAIN, L., 1970, DESCRIPCION DEL MAPA METALOGENETICO DE LA REPUBLICA ARGENTINA: DIRRECION NACIONAL DE GEOLOGIA Y MINERIA, P.67 (SPANISH).}{Deposit:: ANGELELLI, VICTORIO, 1984, YACIMIENTOS METALIFEROS DE LA REPUBLICA ARGENTINA, VOL. II: LA PLATA, COMISION DE INVESTIGACIONES CIENTIFICAS, P. 393-704.}{Deposit:: TURNER, J.C.M., 1982, DESCRIPCION GEOLOGICA DE LA HOJA 3AB, MINA PIRQUITAS: DNGM 187, P. 42-43.}{Production:: ANGELELLI, 1970, REF., ANGELELLI, VICTORIO, 1984, P. 489.}
Reporter	Davidson, Claire B., Bolm, Karen S., Long, Keith R.