Commodities
PrimarySilver, Gold
SecondaryCopper, Lead
TertiaryZinc, Antimony, Molybdenum
Commodity typeM
Deposit
Deposit typeVein
Model154: Epithermal quartz-alunite Au
Deposit sizeS
WorkingsUnderground
Ore controlWider, Steeper Portions Of Fault Zone Next To Cornwall Resurgent Block
Materials
Ore mineralsChalcocite, Covellite, Digenite, Electrum, Galena, Gold, Marcasite, Miargyrite, Molybdenite, Polybasite, Proustite, Pyrargyrite, Pyrrhotite, Silver, Sphalerite, Zinkenite
GangueAnhydrite, Barite, Calcite, Chalcedony, Quartz
Geology
Host rockQuartz Latite · La Jara Canyon Member Of Treasure Mountain Tuff
Associated rockQuartz Latite · La Jara Canyon Member Of Treasure Mountain Tuff
StructureSan Juan Volcanic Field, Platoro Caldera, Summitville Caldera, Platoro Fault Zone, Cornwall Block
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationAll Wallrock Is Silicified To Some Extent Within Vein And Up To 6.5 Ft Into Footwall And Up To 16.5 Ft Into Hanging Wall. In Hanging Wall Zones, All Material Within 1.6 Ft Of Vein Is Completely Silicified. Sericite Progressivly Prominent At 1.6 To 6.5 Ft And Dominant From 6.5 To 26 Ft. At 13 Ft, Kaolinite Prominent. At 26 Ft, Rock Shows Regional Argillization.
Economic & production
Development statusPast Producer
Identification
Deposit ID10101865
MRDS IDD010736
Alternate namesValley Queen Group, Patented Claims: Valley Queen, MS 2371, Valley King, MS 7134, Unpatented Claims: Gold Wedge, Snowstorm, Chelan, Texas, Shasta, Ajax, Ajax Nos. 1-10, Platoro Tunnel, Platoro Tunnel Site
RegionNA
Data scoreB
Coordinates37.35419, -106.5381
References
PATTON, H.B., 1917, GEOLOGY AND ORE DEPOSITS OF THE PLATORO-SUMMITVILLE MINING DISTRICT, COLORADO: CGS BULL. 13.LIPMAN, P.W., 1974, GEOLOGIC MAP OF THE PLATORO CALDERA AREA, SOUTHEASTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-828.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.COLORADO DIV. MINES INF. REPTS.BLM MINERAL SURVEYS MS 2371, 7134BIRD, 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.