Mine detail: Ohman Mine

Previously called 'Nare Lease'

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Location

Lat / long:

39.76832, -105.27725

Resource(M)

Primary:	Uranium
Ore:	Pitchblende

Production

Operation type:	Unknown
Deposit type:	Vein
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Idaho Springs Formation-Hornblende Gneiss Unit;Idaho Springs Formation-Microcline-Quartz-Plagioclase-Biotite Unit
Host type:	Gneiss
Associated rock:	Granitic Pegmatite
Associated type:	Pegmatite
Structure:	Front Range Uplift, Denver Basin, Hurricane Hill Fault System
Tectonic:	Central Cordillera (Southern Rocky Mts.)

References

MRDS	D010152
DEP	10013713
Reference	{Deposit:: NELSON-MOORE, J.L., COLLINS, D.B., AND HORNBAKER, A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: COLORADO GEOLOGICAL SURVEY BULL. 40, P. 194}{Deposit:: SHERIDAN, DOUGLAS M. AND OTHERS, 1967, GEOLOGY AND URANIUM DEPOSITS OF THE RALSTON BUTTES DISTRICT, JEFFERSON COUNTY, COLORADO: USGS PROF. PAPER 520.}{Production:: SHERIDAN AND OTHERS (1967), P. 75}
Reporter	Banke, Carl M.