Colorado · Weld County
Occurrence

Sand Creek Deposit

Weld County, Colorado, United States
Uranium
⌖ Show on mapUSGS source ↗
Description

Joint Venture Of Getty Oil Company, Phelps Dodge Corporation, Trend Exploration Limited, During Initial Wide-Spaced Drilling Program

Commodities
PrimaryUranium
Commodity typeM
Deposit
Deposit sizeN
Orebody formROLL FRONT
Ore controlDeposits Along Interface Between Altered/Unaltered Sand. Alteration In Cuttings Difficult To Detect By Usual Color Changes So Exploration Was Guided By Radiometric Log Interpretation. Uranium Concentrated In Areas Of Rapid Sand Thinning Or At Constriction In Thickest Portion Of Channel Sands. Usually Where Sands Are 25 To 125 Ft Thick.
Materials
GanguePyrite
Geology
Host rockSandstone · Sand Creek Sandstone Member Of The Laramie Formation;White River Formation; Tuffaceous Beds Possibly Source Of Uranium
StructureCheyenne Basin
Tectonic settingGreat Plains, Central Platform
AlterationAlteration Present But Not Detectable In The Field By Usual Color Changes; Oxidized
Economic & production
Development statusOccurrence
Discovery year1971
Identification
Deposit ID10087756
MRDS IDD009074
Alternate namesSand Creek Uranium Deposit
RegionNA
Data scoreC
Coordinates40.7322, -104.4764
References
KIRKHAM, R.M., O'LEARY, W. AND WARNER, J.W., 1980, HYDROGEOLOGIC AND STRATIGRAPHIC DATA PERTINENT TO URANIUM MINING, CHEYENNE BASIN, COLORADO: CGS INFORMATION SERIES 12, 31 P.READE, H.L., 1978, URANIUM DEPOSITS: NORTHERN DENVER-JULESBURG BASIN, COLORADO, IN PRUIT, J.D. AND COFFIN, P.E., EDS, ENERGY RESOURCES OF THE DENVER BASIN: ROCKY MTN ASSOC. GEOLOGISTS, P. 161-171.