Description
American Sovereign Mines, Ltd
Commodities
PrimaryUranium
TertiaryCopper, Nickel, Molybdenum, Silver
Commodity typeM
Deposit
Deposit typeVein
Model155: Volcanogenic U
Deposit sizeS
WorkingsUnderground
Ore controlEast-West-Trending Faults And Fractures Cutting Quartzite
Materials
Ore mineralsErythrite, Uraninite
GangueHematite, Limonite, Pyrite, Quartz
Geology
Host rockQuartzite · Uncompahgre Formation
Associated rockQuartz Monzonite,Diorite · Tenmile Granite
StructureSan Juan Uplift, Needle Mtns Uplift, Centennial Fault, Garfield Peak Fault
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationFe Oxidation
Economic & production
Development statusProducer
First production1956
Last production1980
Discovery year1956
Identification
Deposit ID10107995
MRDS IDD010887
Alternate namesLong Mine, Surprise Group, Centennial Claims, Centenial Uranium Porspect
RegionNA
Data scoreB
Coordinates37.71501, -107.6562
References
SCOTT, D.C., 1983, MINERAL INVESTIGATION OF THE WEST NEEDLE WILDERNESS STUDY AREA AND THE BLM WEST NEEDLE CONTIGOUS WILDERNESS STUDY AREA, LA PLATA AND SAN JUAN COUNTIES, COLORADO: USBM MLA 35-83, P. 9-11, 15, 45-47.BARKER, FRED, 1969, PRECAMBRIAN GEOLOGY OF THE NEEDLE MOUNTAINS, SOUTHWESTERN COLORADO: USGS PROF. PAPER 644-A.CROSS, WHITMAN, AND OTHERS, 1905, DESCRIPTION OF THE NEEDLE MOUNTAINS QUADRANGLE, COLORADO: USGS FOLIO 131.STEVEN, T.A., AND OTHERS, 1969, MINERAL RESOURCES OF THE SAN JUAN PRIMITIVE AREA, COLORADO: USGS BULL. 1261-F, P. 52-53, 88-89.NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 398.COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.COLORADO DIV. MINES ANNUAL OPERATOR REPTS. (1958-1980); STEVEN AND OTHERS, 1969 (1956)