| Lat / long: | -26.47415, -69.42951 |
| Primary: | Copper, Molybdenum |
| Secondary: | Gold, Silver, Lead, Zinc |
| Ore: | Bornite, Chalcocite, Chalcopyrite, Chrysocolla, Copper, Covellite, Cuprite, Galena, Malachite, Molybdenite, Sphalerite, Tenorite, Tetrahedrite |
| Gangue: | Calcite, Chlorite, Dolomite, Epidote, Orthoclase, Pyrite, Sericite |
| Orebody form: | TABULAR & CRESCENT SHAPED |
| Discovery year: | 1894 |
| Operation type: | Unknown |
| Production size: | Large |
| Development status: | Producer |
| First production started: | 1926 |
| Last production ended: | 1959 |
| Host rock: | Cerro Negro Formation, Shl, Limestone, Sst;Potrerillos Formation, Shl, Limestone, Sst, Sills Of Melaphyre Occur In Shl |
| Host type: | Tonalite |
| Associated rock: | Post Mineral Dikes, Andesite & Diorite Porphyry;;Rhyolite Volcanic Dikes, Flows, And Breccia;Andesite Volcanic Flows & Breccia |
| Associated type: | Tonalite |
| Structure: | North Trending Fold, Faults And Plutonic Masses. Along Falla Oeste., Structure Consists Of Asymmetric Anticline; Porphyry Stock Intruded Into West Flank Of Anticline; 3 Ages Of Faults: Pre-Andesite, Pre-And Post-Porphry. Anticline Strikes N 10 Deg E. 32ma Ew Dikes Suggest Ew Conpression (Ns Tension) At This Time |
| Tectonic: | Andean Cordillera And Batholith |
| Alteration processes: | Hydrothermal Alteration, Contact Metamorphism. Sericitization In Stockwork, Propylitization In Halo. Potassic, Phyllic. |
| MRDS | W001550 |
| DEP | 10110362 |
| Reference | {Deposit:: BEALL, J.V., 1969, COPPER INTHE ANDES: MIN. ENG. V. 21, NO. 11, P.51-90}{Deposit:: RUIZ, F., CARLOS, 1965, GEOLGIA Y YACIMIENTOS METALIFEROS DE CHILE: INST. INV. GEOL. CHILE, P. 184-186, (SPANISH)}{Deposit:: MARCH, W., 1933, COPPER RESOURCES OF THE WORLD: INTERNAT. GEOL. CONG. 16TH WASH. D.C. P. 485-500}{Deposit:: HOLLISTER, V. F., 1973, REGIONAL CHARACTERISTICS OF PORPHYRY COPPER DEPOSITS OF SOUTH AMERICA, A.I.M.E. PREPRINT 73-I-2 P. 29}{Deposit:: RUIZ, C. AND PEEBLES, F., 1988, YACIMIENTOS METALIFEROS DE CHILE: SANTIAGO, 334 P.}{Deposit:: DIAZ, ET AL., 1980, MAPA METALOGENICO PRONOSTICO DE LA III REGION: CORPORACION DE FOMENTO DE LA PRODUCCION, SANTIAGO (5 VOLS.)}{Deposit:: MARCH, W., 1933, ORE DEPOSITS AT POTRERILLOS (CHILE), IN COPPER RESOURCES OF THE WORLD, XVI IGC, WASHINGTON, P. 485-500.}{Deposit:: SILLITOE, R.H., 1988, EPOCHS OF INTRUSION-RELATED COPPER MINERALIZATION IN THE ANDES: JOUR S. AM EAR SCI, 1, 89-108.}{Deposit:: OLSON, S.F., 1989, THE STRATIGRAPHIC AND STRUCTURAL SETTING OF THE POTRERILLOS PORPHYRY COPPER DISTRICT, NORTHERN CHILE; REV. GEOL CHILE, 16, 3-29.}{Other Database:: CIMRI}{Production:: MARCH, 1933, REF.; OLSON, 1989.}{Reserve-Resource:: INFO. LACKING TO ESTIMATE 3/73} |
| Reporter | Davidson, Claire B., Williams, William C. |