Mine detail: Green Rock Mine

Previously called ''

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Location

Lat / long:

40.71248, -105.31476

Resource(M)

Primary:	Tungsten
Tertiary:	Molybdenum
Ore:	Powellite, Scheelite

Production

Operation type:	Underground
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Metamorphic Rocks--Biotite Gneiss, Schist, And Migmatite
Host type:	Schist
Associated rock:	Sherman Granite
Associated type:	Granite
Structure:	Front Range Uplift, Sherman Batholith, Poudre River Shear Zone, Skin Gulch Shear Zone
Tectonic:	Central Cordillera (Southern Rocky Mtns)

References

MRDS	D010544
MAS	80690067
DEP	10013967
Reference	{Deposit:: COBB, H.S., 1960, TUNGSTEN MINES OF COLORADO: COLORADO METAL MINING FUND BD., P. 37.}{Deposit:: BELSER, CARL, 1956, TUNGSTEN POTENTIAL IN CHAFFEE, FREMONT, GUNNISON, LAKE, LARIMER, PARK, AND SUMMIT COUNTIES, COLORADO: USBM IC-7748, P. 16.}{Deposit:: TWETO, OGDEN, 1960, SCHEELITE IN THE PRECAMBRIAN GNEISSES OF COLORADO: ECON. GEOLOGY, V. 55, NO. 7, P. 1406-1428.}{Deposit:: ABBOTT, J.T., 1976, GEOLOGIC MAP OF THE BIG NARROWS QUADRANGLE, LARIMER COUNTY, COLORADO: USGS MAP GQ-1323.}{Production:: BELSER, 1956, P. 16.}
Reporter	Schwochow, Stephen D., Intermountain Field Operations Center (IFOC), Wilson, Anna B.