Commodities
PrimaryGold, Silver
SecondaryCopper, Lead
Commodity typeM
Deposit
Model85: Polymetallic veins
Deposit sizeS
WorkingsSurface/Underground
Ore controlQuartz-Alunite Solfataric Replacement Bodies Following Nw-Trending Fractures Near Sw Margin Of South Mountain Feeder Conduit
Materials
Ore mineralsGalena, Sphalerite
GangueBarite
Geology
Host rockQuartz Latite · Quartz Latite Of South Mountain;Summitville Andesite
Associated rockQuartz Latite,Andesite · Quartz Latite Of South Mountain;Summitville Andesite
StructureSan Juan Volcanic Field, Platoro Caldera, Summitville Caldera, Summitville Fault, South Mountain Dome
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationQuartz-Alunite Solfataric Alteration
Economic & production
Development statusPast Producer
Identification
Deposit ID10014036
MRDS IDD010650
Alternate namesGolconda No. 1, Golconda No. 2
RegionNA
Data scoreB
Coordinates37.42113, -106.59754
References
PATTON, H.B., 1917, GEOLOGY AND ORE DEPOSITS OF THE PLATORO-SUMMITVILLE MINING DISTRICT, COLORADO: CGS BULL. 13.STEVEN, T.A., AND RATTE, J.C., 1960, GEOLOGY AND ORE DEPOSITS OF THE SUMMITVILLE DISTRICT, SAN JUAN MOUNTAINS, COLORADO: USGS PROF. PAPER 343LIPMAN, P.W., 1974, GEOLOGIC MAP OF THE PLATORO CALDERA AREA, SOUTHEASTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-828.