| Location: | Pasco, Peru, South America |
| Lat / long: | -10.74792, -76.24972 |
| dep_id: | 10068759 |
| mrds_id: | W002004 |
| Commodity type: | metallic |
| Major mineral: | Copper, Lead, Silver, Zinc |
| Trace mineral: | Gold |
| Operation type: | Unknown |
| Production size: | Production occurred |
| Development status: | Producer |
| ore: | Argentite, Bornite, Cerargyrite, Chalcocite, Chalcopyrite, Covellite, Enargite, Galena, Marcasite, Pyrite, Silver, Sphalerite, Stromeyerite, Tennantite |
| gangue: | Barite, Chert, Fluorite, Hematite, Kaolinite, Opal, Quartz, Siderite, Uraninite |
| orebody_fm: | IRREGULAR |
| alteration: | Each Individual Bed Is Flanked Outward Successively By Kaolinized, Pyritized, Or Slightly Mineralized Shale With Or Without Chert; Argillaceous Material With Hematite Nodules And Finally Shaly And Carbonate Rocks. Silicification (Black Cherty Silica) Is Associated With Ore. |
| conc_proc: | Oxidation Is Complete To Depth Of 60 M And May Be Locally Twice Or More That Depth Supergene Minerals Are Covelite Chalcocite, Native Silver And Native Copper |
| ore_ctrl: | Thickest Ore Bodies Occur Where Competent Chert And Incompetent Shale Are Interlayered |
| Reporter: | Goudarzi, Gus H. (Theune, C. T.), Page, Norman J. |
| hrock_unit: | Paria Formation |
| hrock_type: | Limestone |
| arock_unit: | Marcapunta Porphyry Stock;Excelsior Formation, Mitu Group;Pucara Group;Pocobamba Formation, Clara Member;Unish Tuff |
| arock_type: | Shale,Sandstone,Limestone |
| Structure: | N-S Striking Anticline Whose Flanks Are Cut By Nw Striking Reverse Faults That Dip N. E., Beds Of The Clara Member Are Folded Into A Major Syncline To The W. And Minor Syncline And Tight Anticline |
| tectonic: | Andean Cordillera |
| Year first produced: | 1912 |
| disc_yr: | 1677 |
| discr: | Not Known |
| References: |
- Deposit:: F. S. SIMONS 1960 (USGS) UNPUBLISHED REPORT P.1377-1388
- Deposit:: MINISTERIO DE ENERGIA Y MINAS, 1969, ASPECTOS GENERALES DE LA METALOGENICA DEL PERU. P. 68; MINISTERIO DE ENERGIA Y MINAS. SERVICIO DE GEOLOGIA Y MINERIA, LIMA, PERU
- Deposit:: PERU-MAPA METALOGENETICO, 1969, AND, GUIA PARA EL MAPA METALOGENETICO DEL PERU, SOCIEDAD NACIONAL DE MINERIA Y PETROLEO, LIMA, PERU. NOV. 1969
- Deposit:: BRISKEY, JOE, 1989, UNPUBLISHED DATA.
- Deposit:: MCKINSTRY, H.E., 1936, GEOLOGY OF THE SILVER DEPOSIT AT COLQUIJIRCA, PERU: ECONOMIC GEOLOGY, V. 31, NO. 6, P. 618-635.
- Deposit:: LINDGREN, W., 1935, THE SILVER MINE AT COLQUIJIRCA, PERU: ECONOMIC GEOLOGY, V. 30, NO. 4, P. 331-346.
- Deposit:: NOBLE, D.C., AND VIDAL, C.E., 1994, GOLD IN PERU: SEG NEWSLETTER, APRIL 1994, NO. 17, P. 1,6-13.
- Deposit:: 1960 COMPILE F. S. SIMONS - UNPUB. REPOR
- Production:: F. S. SIMONS (USGS) UNPUB. REPORT P. 1377A; BRISKEY (1989); LINDGREN (1935).
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