Mine detail: Idledale District

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Location: Jefferson County, Colorado, United States, North America
Lat / long: 39.66527, -105.24836
dep_id: 10013504
mrds_id: D009847
Commodity type: metallic
Major mineral: Uranium
Trace mineral: Copper, Lead, Zinc
Operation type: Unknown
Deposit type: Vein
Production size: Small ammount of material produced
Development status: Past Producer
ore: Chalcopyrite, Coffinite, Galena, Pitchblende, Pyrite, Sphalerite
gangue: Ankerite, Calcite, Chlorite, Fluorite, Quartz
work_type: Unknown
alteration: Fe Oxidation
Reporter: Schwochow, Stephen D.
hrock_unit: Idaho Springs Formation
hrock_type: Gneiss
Structure: Front Range Uplift, Denver Basin, Bear Creek Shear Zone, Junction Ranch Fault, Cherry Gulch Fault
tectonic: Central Cordillera (Southern Rocky Mtns)
Year first produced: 1955
yr_lst_prd: 1968
disc_yr: 1955
References:
  • Deposit:: NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 189-196
  • Deposit:: SCOTT, G.R., 1972, GEOLOGIC MAP OF THE MORRISON QUADRANGLE, JEFFERSON COUNTY, COLORADO: USGS MAP I-790-A
  • Deposit:: GABLE, D.J., 1968, GEOLOGY OF THE CRYSTALLINE ROCKS IN THE WESTERN PART OF THE MORRISON QUADRANGLE, JEFFERSON COUNTY, COLORADO: USGS BULL. 1251-E
  • Deposit:: SIMS, P.K., AND SHERIDAN, D.M., 1964, GEOLOGY OF URANIUM DEPOSITS INTHE FRONT RANGE, COLORADO: USGS BULL, 1159, P. 94-100
  • Production:: SIMS, P.K., AND SHERIDAN, D.M., 1964, P. 96; NELSON-MOORE, J.L., AND OTHERS, 1978, P. 192, 194, 196
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