Mine detail: Sand Creek Claims

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Location: Fremont County, Colorado, United States, North America
Lat / long: 38.69167, -105.27557
dep_id: 10013184
mrds_id: D009332
Commodity type: metallic
Major mineral: Uranium
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
ore: Coffinite, Uraninite
gangue: Hematite, Limonite
orebody_fm: TABULAR, PODS
alteration: Oxidation; Alteration Of Feldspar To Clay
conc_proc: Concentration By Oxidized, Uranium-Bearing Groundwater Passing Through Areas With Localized Reducing Conditions Such As Carbonaceous Material (Mostly Wood Fragments) And Associated Pyrite In Fluvial Channel Sandstones.
ore_ctrl: Carbonaceous Material
Reporter: Collins, Donna B.
hrock_type: Sandstone
arock_unit: Wall Mountain Tuff Was Probable Principal Uranium Source
arock_type: Rhyolite
Structure: Thirty Nine Mile Volcanic Field, Paleo Channels Along Four Mile Creek And Its Adjacent Fault
tectonic: Central Cordillera (Southern Rocky Mountains)
References:
  • Deposit:: NELSON-MOORE, J.L., COLLINS, D.B. AND HORNBAKER, A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULLETIN 40, P. 151.
  • Deposit:: WOBUS, R.A., EPIS, R.C. AND SCOTT, G.R., 1979, GEOLOGIC MAP OF THE COVER MOUNTAIN QUADRANGLE, FREMONT, PARK, AND TELLER COUNTIES, COLORADO: USGS MAP I-1179, 1:62,500.
  • Deposit:: DICKINSON, K.A., 1981, GEOLOGIC CONTROLS OF URANIUM MINERALIZATION IN THE TALLAHASSEE CREEK URANIUM DISTRICT, FREMONT COUNTY, COLORADO: THE MOUNTAIN GEOLOGIST, V. 18, NO. 4, P. 88-94.
  • Production:: NELSON-MOORE AND OTHERS, 1978
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