Commodities
PrimaryUranium
Commodity typeM
Deposit
Deposit sizeS
Orebody formfissure vein, pipe, stockwork
Ore controlShear Zone Localized Vein Filling
Materials
Ore mineralsAutunite, Uraninite
GangueKaolinite, Hematite, Limonite
Geology
Host rockGneiss · Migmatitic Gneiss
Associated rockDiorite · Granodiorite Of Boulder Creek Age
StructureSangre De Cristo Range, Shear Zone Localized Ore, But Deposit Occurs Near Terminations Of Two Large Fault Zones: One On East Flank Of Sangre De Cristo Mtns (Trends Nw), One Trending North, North Of Cotopaxi (Cotopaxi Fault); Numerous Small Cross Faults; Between Alvarado Fault, Pleasant Valley Fault; Near Trend Of Oak Creek Paleovalley Of Oligocene To Miocene Age
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationKaolinization
Economic & production
Development statusPast Producer
Identification
Deposit ID10013263
MRDS IDD009465
Alternate namesLightning No. 1-8, Honest John No. 1-15, Dac Uranium, Lightning Group
RegionNA
Data scoreB
Coordinates38.33334, -105.72391
References
NELSON-MOORE, J.L., COLLINS, D.B. AND HORNBAKER, A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULLETIN 40, P. 149-150TAYLOR, R.B., SCOTT, G.R., WOBUS, R.A. AND EPIS, R.C., 1975, RECONNAISSANCE GEOLOGIC MAP OF THE COTOPAXI 15-MINUTE QUADRANGLE, FREMONT AND CUSTER COUNTIES, COLORADO: USGS MAP I-900, 1:62,500.NELSON-MOORE AND OTHERS, 1978