Commodities
PrimaryTungsten, Copper, Zinc
SecondarySilver, Lead, Gold, Molybdenum
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Ore controlWall Rock Control For Tungsten Skarns; Fracture/Fault Control On Cu -Zn Skarns
Materials
Ore mineralsChalcopyrite, Galena, Molybdenite, Scheelite, Sphalerite
GangueQuartz
Geology
Host rockGneiss · Idaho Springs Formation, Biotite Gneiss
Associated rockTonalite
StructureSouthern Front Range, Northern Wet Mountains, Thirtynine Mile Volca Nic Field, Guffey Volcanic Center, Currant Creek Fault
Tectonic settingCentral Cordillera, (Southern Rocky Mountains)
AlterationMigmatitization
Economic & production
Development statusPast Producer
First production1919
Discovery year1919
Identification
Deposit ID10013955
MRDS IDD010529
RegionNA
Data scoreB
Coordinates38.71944, -105.5478
References
HEINRICH, E.W., 1981, PRECAMBRIAN TUNGSTEN AND COPPER-ZINC SKARN DE POSITS OF SOUTH-CENTRAL COLORADO: CGS RESOURCE SERIES 21, 115 P.BELSER, CARL, 1956, TUNGSTEN POTENTIAL IN CHAFFEE, FREMONT, GUNNISO N, LAKE, LARIMER, PARK, AND SUMMIT COUNTIES COLORADO: USBM INFORMATION CIRCULAR 7748, P. 19-26EPIS, R.C., WOBUS, R.A., AND SCOTT, G.R., 1979, GEOLOGIC MAP OF THE BLACK MOUNTAIN QUADRANGLE, FREMONT, AND PARK COUNTIES, COLORADO: USGS MAP I-1195, 1:62,500WORCESTER, P.G., 1919, MOLYBDENUM DEPOSITS OF COLORADO, WITH GENERA L NOTES ON THE MOLYBDENUM INDUSTRY: CGS BULLETIN 14, P. 76-77 5)LEMMON, D.M. AND TWETO, O.L., 1962, TUNGSTEN IN THE UNITED STATES: USGS MAP MR-25.