Mine detail: Sunset Claims

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Location: Gunnison County, Colorado, United States, North America
Lat / long: 38.34, -107.01479
dep_id: 10014388
mrds_id: D011134
Commodity type: metallic
Major mineral: Thorium
Trace mineral: Gold
Operation type: Unknown
Production size: No production occurred
Development status: Occurrence
ore: Pyrite, Thorite
gangue: Hematite, Orthoclase
Reporter: Schwochow, Stephen D.
hrock_unit: Dubois Greenstone--Felsite And Felsite Porphyry
hrock_type: Trachyte,Granite
arock_unit: Granite Of Tolvar Peak;Trachyte And Trachyte Porphyry Dikes
arock_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:
  • 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.
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