Quiruvilca Mine (La Libertad Mine; ASARCO Mine), Quiruvilca District, Santiago de Chuco Province, La Libertad Department, Peru
|Latitude & Longitude (WGS84):||8° 0' 39'' South , 78° 19' 18'' West|
|Latitude & Longitude (decimal):||-8.01111,-78.32194|
A Cu-Pb-Zn-Ag-Au mine owned by ASARCO (80%). 1984 production was 358,000 tons/ore (2,400 tons Cu; 3,500 tons Pb; 10,000 tons Zn; 55,200 kg Ag & 78 kg Au).
Known for excellent specimens of orpiment, enargite, hutchinsonite, and pyrite.
Mesothermal and epithermal Cu-Pb-Zn ore mineralisations in an area of andesitic and basaltic volcanics. Four distinct zones can be recognized. From the center, they are the enargite zone, a transition zone, the Pb-Zn and the stibnite zone. Alteration includes chloritization, propylitization, argillization, and silicification.
37 valid minerals.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
66 - 252.17 Ma
|Mesozoic sedimentary rocks|
Burkart-Baumann, I. and Ottemann, J. (1972) Low temperature sulfides from Quiruvilca, Peru. Neues Jahrbuch für Mineralogie, Monatshefte 1972, 541-551 (in German).
Mining Annual Review (1985) 323.
Bartos, P.J. (1987) Quiruvilca, Peru: Mineral zoning and timing of wall-rock alteration relative to copper-lead-zinc-silver vein-fill deposition. Economic Geology 82, 1431-1452.
Robinson, G. W. and Harris, D. C. (1987) A baumhauerite-like mineral from Quiruvilca, Peru. Mineralogical Record 18, 199-201.
Crowley, J.A., Currier, R.H., and Szenics, T. (1997) Mines and Minerals of Peru. Mineralogical Record 28, 1-98.
Hyrsl and Rosales (2003) Mineralogical Record: 34: 241-254.