Commodities
PrimaryCopper
TertiaryGold
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formBRECCIA PIPE IS TRUNCATED BY OVERLYING MANTO
Ore controlIntrusive Contact Between Granodiorite Batholith And Stratified Rocks To East. Rock Shearing And Fluid Movement Produced Tourmalinization And Leaching Of Marginal Zones In Batholith
Materials
Ore mineralsChalcocite, Chalcopyrite
GangueCalcite, Gypsum, Hematite, Magnetite
Other materialsPyrite
Geology
Host rockAndesite · Limestone, Nantoco Formation, Chanacillo Group;Limestone, Sandstone, Abundancia Formation, Chanacillo Group;Marine Lava, Punta Del Cobre Formation, Chanacillo Group;Volcanic & Continental Clastic Rocks, Bandurrias Formation
Associated rockDiorite,Plutonic Rock · Granodiorite & Diorite;Diorite & Gabbro, Intrusive Porphyry;Contact Metamorphic Rock;Gneiss, Granite
StructureNorth-Trending Broad Open Folds, Faults Of Varying Lengths And Displacements & Plutonic Masses, Rocks Deformed By Open Folding & Normal & Reverse Faulting. High-Angle Faults Form A Dominant Younger System Of N. To Nw-Striking Fractures And A Lesser Older System Of Ne-Striking Fractures. Principal Valleys Are Fault Controlled
Tectonic settingAndean Cordillera And Batholith
AlterationVein Deposits Are Hydrothermal, Manto Deposits Are Replacements Of Contact-Metamorphic Rocks, Breccia Pipes Are Hydrothermal And Replacement Bodies
Economic & production
Development statusPast Producer
Discovery year1550
Identification
Deposit ID10068736
MRDS IDW001977
RegionSA
Data scoreB
Coordinates-27.49247, -70.2562
References
RUIZ, F., CARLOS, 1965, GEOLOGIA Y YACIMIENTOS METALIFEROS DE CHILE: INST. INV. GEOL. CHILE, 305 P. (SPANISH)SEGERSTROM, KENNETH, 1962, CUADRANGULO COPIAPO, PROV. ATACAMA: CHILE INST. INV. GEOL. V. 3, NO. 1, 113 P. (SPANISH)RUIZ, C. AND PEEBLES, F., 1988, YACIMIENTOS METALIFEROS DE CHILE: SANTIAGO, 334 P.DIAZ, ET AL., 1980, MAPA METALOGENICO PRONOSTICO DE LA III REGION: CORPORACION DE FOMENTO DE LA PRODUCCION, SANTIAGO (5 VOLS.)ORTIZ, F., 1971, IIG (INEDITO).ORTIZ, FRANCISCO, 1962, GEOLOGIA Y YACIMIENTOS MINERALES DEL DISTRITO MINERO DE PUNTA DEL COBRE (COPIAPO) PROV. DE ATACAMA: CHILE INST. INV. GEOL. UNPUB. INF. (SPANISH).SEGERSTROM, KENNETH, 1962, CUADRANGULO COPIAPO, PROV. AT ACAMA: CHILE INST. INV. GEOL. V. 3, NO. 1, 113 P. (SPANISH).1960 GEOLMAP KENNETH SEGERSTROM1961 COMPILE EMPRESA NACIONAL DE MINERA (ENAMI)1961 COMPILE INSTITUTO DE INVESTIGACIONES GEOLOGICAS CHILECIMRI