Commodities
PrimaryUranium
Commodity typeM
Deposit
Model204: Sandstone U
Deposit sizeS
Orebody formTABULAR, PODS
Ore controlDeposition Controlled By Ground Water Flow Conditions And Carbonaceous Material With Associated Pyrite. Flow Was Impeded By The Fault On The Southern End Of The Echo Park Graben. Highest Grade Material Where Ne-Trending Normal Faults Intersect Mary L Fault
Materials
Ore mineralsCoffinite, Uraninite
GangueHematite, Limonite
Geology
Host rockSiltstone,Sandstone,Arkose,Conglomerate · Echo Park Formation
Associated rockRhyolite · Wall Mountain Tuff Was Probable Principal Uranium Source
StructureThirty Nine Mile Volcanic Field; Currant Creek Basin, Echo Park Graben, Paleovalleys; Mary L Fault
Tectonic settingCentral Cordillera (Southern Rocky Mountains)
AlterationOxidation; Alteration Of Feldspar To Clay
Economic & production
Development statusPast Producer
Identification
Deposit ID10013178
MRDS IDD009324
Alternate namesSeattle Chief Mine
RegionNA
Data scoreB
Coordinates38.5689, -105.51697
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.EPIS, R.C., WOBUS, R.A. AND SCOTT, G.R., 1979, GEOLOGIC MAP OF THE BLACK MOUNTAIN QUADRANGLE, FREMONT AND PARK COUNTIES, COLORADO: USGS MAP I-1195, 1:62,500.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.NELSON-MOORE AND OTHERS, 1978