Commodities
PrimaryCopper
SecondarySilver, Zinc
TertiaryGold
Commodity typeM
Deposit
Deposit sizeS
Orebody formTABULAR MASSES PARALLEL TO BEDDING PLANES
Ore controlDuring Intrusion Of Diorite Batholith Hydrothermal Mineralized Solutions Emanated From Magmas Into Surrounding Rocks Deposits Probably Formed At 1000-4000 M Depth & Consist Of Disseminated Sulfides That Have Replaced The Calcareous Matrix Of Tuff Pebble Conglomerate And Breccia
Materials
Ore mineralsBornite, Chalcanthite, Chalcocite, Chalcopyrite, Chrysocolla, Covellite, Sphalerite
GangueCalcite, Chlorite, Epidote, Magnetite, Pyrite, Specularite
Other materialsPyrrhotite
Geology
Host rockVolcanic Breccia (Agglomerate)
Associated rockDiorite,Volcanic Rock (Aphanitic) · Diorite Batholith, Cret ( Ref. 2 ), Tert ( Ref. 3 );Lo Valle Formation, Volcanic Tuff & Tuffaceous Breccia;Veta Negra Formation, Andesite Porphyry Lava Flows
StructureNorth-Trending Broad Open Folds Faults Of Varying Lengths And Displacements, And Plutonic Masses, E-Dipping Monocline Cut By Diorite Batholith. Zone Of Block Faulting East Of Diorite Caused By 2 Sets Of N & N 75 Deg. W. Striking Faults. Displacements Range From Few Cm To 30 M. Two Sets Of Porphyritic Andesitic Dikes Cut Deposit. Strike N. 60 Deg. W., Dip N.
Tectonic settingAndean Cordillera And Batholith
AlterationNot Prominent But Some Silicification And Chloritization
Economic & production
Development statusPast Producer
Identification
Deposit ID10068732
MRDS IDW001973
RegionSA
Data scoreB
Coordinates-32.57247, -70.85619
References
RUIZ, F., CARLOS, 1965, GEOLOGICA Y YACIMIENTOS METALIFEROS DE CHILE: INST. INV. GEOL. CHILE, P. 198 (SPANISH)CARTER, W. D., 1961, YACIMIENTOS DE COBRE TIPO MANTO: CHILE INST. INV. GEOL. BOL. NO. 10, 30 P. (SPANISH)CARTER, W. D., 1960, ORIGEN OF MANTO-TYPE COPPER DEPOSITS OF THE CABILDO MINING DISTRICT CENTRAL CHILE: INT. GEOL. CONG., 21ST, NORDEN, PT. 16, P. 17-28RUIZ, C. AND PEEBLES, F., 1988, YACIMIENTOS METALIFEROS DE CHILE: SANTIAGO, 334 P.SERPLAC, 1981, ESTUDIO DEL SECTOR MINERO DE LA V REGION: SANTIAGO (6 VOL.)CARTER, WILLIAM, AND ALISTE, NELSON, 1962, QUADRANGULO NIHUE, PROV. ACONCAGUA: CHILE INST. INV. GEOL. IN PRESS (SPANISH).1965 GEOLMAP WILLIAM D. CARTECIMRIRUIZ, 1965, REF.