Mine detail: Sunset Claims

Previously called ''

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Location

Lat / long:

38.34, -107.01479

Resource(M)

Primary:	Thorium
Tertiary:	Gold
Ore:	Pyrite, Thorite
Gangue:	Hematite, Orthoclase

Production

Operation type:	Unknown
Production size:	None
Development status:	Occurrence

Geology

Host rock:	Dubois Greenstone--Felsite And Felsite Porphyry
Host type:	Trachyte,Granite
Associated rock:	Granite Of Tolvar Peak;Trachyte And Trachyte Porphyry Dikes
Associated type:	Trachyte,Granite
Structure:	Gunnison Uplift, San Juan Volcanic Field, Gunnison Gold Belt, Iron Hill Alkalic Complex, Tolvar Peak Stock
Tectonic:	Central Cordillera (Southern Rocky Mtns)

References

MRDS	D011134
DEP	10014388
Reference	{Deposit:: HEDLUND, D.C., AND OLSON, J.C., 1975, GEOLOGIC MAP OF THE POWDERHORN QUADRANGLE, GUNNISON AND SAGUACHE COUNTIES, COLORADO: USGS MAP GQ-1178.}{Deposit:: NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 176.}{Deposit:: HEDLUND, D.C., AND OLSON, J.C., 1961, FOUR ENVIRONMENTS OF THORIUM-, NIOBIUM-, AND RARE-EARTH-BEARING MINERALS IN THE POWDERHORN DISTRICT OF SOUTHWESTERN COLORADO: USGS PROF. PAPER 424-B, P. B283-B286.}
Reporter	Schwochow, Stephen D.