Commodities
TertiaryGold, Copper
Commodity typeM
Deposit
Model154: Epithermal quartz-alunite Au
Deposit sizeN
Orebody formCIRCULAR
Ore controlNw-Trending Possible Resurgent Radial Fault
Materials
Ore mineralsChalcopyrite, Covellite, Gold, Pyrite
GangueCalcite, Chalcedony, Chlorite, Hematite, Marcasite
Geology
Host rockAndesite · Summitville Andesite;Summitville Andesite--Volcaniclastic Facies
Associated rockAndesite · Summitville Andesite
StructureSan Juan Volcanic Field, Platoro Caldera, Platoro Fault Zone
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationPervasive Chloritic Alteration; Hematite Staining
Economic & production
Development statusOccurrence
Discovery year1971
Identification
Deposit ID10090948
MRDS IDD010737
RegionNA
Data scoreB
Coordinates37.34446, -106.5631
References
BIRD, W.H., 1972, MINERAL DEPOSITS OF THE SOUTHERN PORTION OF THE PLATORO CALDERA COMPLEX, SOUTHEAST SAN JUAN MOUNTAINS, COLORADO: MTN. GEOLOGIST, V. 9, NO. 4, P. 379-387.BIRD, W.H., 1973, THE DEVELOPMENT OF THE SOUTHERN PORTION OF THE PLATORO CALDERA COMPLEX AND ITS RELATED MINERAL DEPOSITS, SOUTHEAST SAN JUAN MOUNTAINS, COLORADO: COLORADO SCHOOL OF MINES THESIS T-1440.LIPMAN, P.W., 1974, GEOLOGIC MAP OF THE PLATORO CALDERA AREA, SOUTHEASTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-828.