Description
Present Work By United Nations And Gov'T Of Argentina
Commodities
TertiaryCopper, Molybdenum, Lead, Zinc, Arsenic
Commodity typeM
Deposit
Deposit sizeN
Orebody formDACITE STOCK IS ROUGHLY OVAL
Ore controlStructural Control Of Primary Sulfide As Evidenced By Linear N-S Orientation. Control Seen Along Major Faults By Anomalous Values Of Cu, Mo, Pb, Zn, As
Materials
Ore mineralsChalcopyrite, Galena, Pyrite, Sphalerite
GangueCalcite, Hematite, Quartz
Geology
Host rockDacite · Sedimentary Rocks;Metasedimentary Rocks
Associated rockMafic Intrusive Rock,Dacite · Quartz Intrusive (Plug) In Dacitic Porphyry;Dacitic Porphyry;Tuffs
StructureN-Trending Folded And Faulted Ranges East Of Principal Cordillera. Pal Rocks Intruded By Intermediate To Felsic Plutons. Faults Of 5000-M Displacement On Eastern Frontal Cordillera, Dacitic Porphyry Intrudes Older Rocks & Is Cut By Small Nnw & Nne-Striking Basalt Dikes Faults And Fractures Of Quartz-Calcite Veinlets Are In Area. In Center Of Dacitic Porphyry Is Intrusive Plug Of Massive Barren Quartz, 200 M N-S, 60 M Across, Which Dominates Relief
Tectonic settingFrontal Cordillera
AlterationBleached Zone 200 X 500 M Around Quartz Plug. Hydrothermal Alteration Of Dacitic Porphyry Evidenced By Bleaching And Leaching. Process Probably Accompanied By Direct Magmatic Activity Of Late Residual Fluids Injected Into Rock. Zone Of Silicification Mapped.
Economic & production
Development statusProspect
Identification
Deposit ID10068823
MRDS IDW002081
RegionSA
Data scoreB
Coordinates-34.5808, -68.83278
References
UNITED NATIONS DEVELOPMENT PROGRAMME, 1970, INVESTIGATION OF PORPHYRY COPPER TYPE MINERALIZATION IN THE PROVINCES OF MENDOZA, NEUQUEN, AND SAN JUAN, ARGENTINA: NEW YORK, UNITED NATIONS, P. 238-244.UNITED NATIONS DEVELOPMENT PROGRAMME, 1970, INVESTIGATION OF PORPHYRY COPPER-TYPE MINERALIZATION IN THE PROVINCES OF MENDOZA, NEUQUEN, AND SAN JUAN, ARGENTINA: NEW YORK, UNITED NATIONS, P. 238-244.1966 DIREXPL UNITED NATIONS, GOV'T OF ARGENTIN