Commodities
PrimarySilver, Gold
SecondaryLead, Copper
TertiaryZinc
Commodity typeM
Deposit
Deposit typeVein
Model85: Polymetallic veins
Deposit sizeS
Ore controlMetalliferous Veins Controlled By Regional Rectangular Fracture System In Granites And By Local Radial Fracture System Associated With Emplacement Of Chicago Basin Stock.
Materials
Ore mineralsChalcopyrite, Sphalerite
GangueQuartz
Geology
Host rockGranite · Trimble Granite
Associated rockQuartz Monzonite,Rhyolite,Granite · Trimble Granite;Intrusive Bodies And Related Rocks (Younger And Older Bodies Of Chicago Basin Stock)
StructureSan Juan Uplift, San Juan Basin, San Juan Volcanic Field, Needle Mtns Uplift, Chicago Basin Stock, Eolus Batholith, Trimble Stock
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
Economic & production
Development statusPast Producer
Identification
Deposit ID10014089
MRDS IDD010713
RegionNA
Data scoreB
Coordinates37.57112, -107.60563
References
SCHMITT, L.J., AND RAYMOND, W.H., 1977, GEOLOGY AND MINERAL DEPOSITS OF THE NEEDLE MOUNTAINS DISTRICT, SOUTHWESTERN COLORADO: USGS BULL. 1434, 40 P.STEVEN, T.A., AND OTHERS, 1969, MINERAL RESOURCES OF THE SAN JUAN PRIMITIVE AREA, COLORADO: USGS BULL. 1261-F, P. 30-32, 55-67, 105-107, 164-165.CROSS, WHITMAN, AND OTHERS, 1905, DESCRIPTION OF THE NEEDLE MOUNTAINS QUADRANGLE, COLORADO: USGS FOLIO 131.