Mine detail: Mancos River Black Sand Deposit

Previously called 'Shiprock Group'

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Location

Lat / long: 37.12668, -108.65538

Resource(M)

Primary: Uranium, Thorium, Zirconium, Titanium, Metal
Secondary: Iron
Tertiary: REE
Ore: Anatase, Ilmenite, Monazite
Gangue: Hematite, Jarosite, Limonite
Discovery year: 1912

Production

Operation type: Unknown
Deposit type: Fossil Placer
Production size: None
Development status: Occurrence

Geology

Host rock:Mesaverde Group--Point Lookout Sandstone;Mesaverde Group--Menefee Formation
Host type:Sandstone
Structure:San Juan Basin, Four Corners Platform, Mesa Verde Basin, Mcelmo Dome
Tectonic:Colorado Platform
Alteration processes:Fe Oxidation And Cementation

References

MRDSD010872
DEP10090136
Reference{Deposit:: NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 277-281.}{Deposit:: HOUSTON, R.S., AND MURPHY, J.F., 1977, DEPOSITIONAL ENVIRONMENT OF UPPER CRETACEOUS BLACK SANDSTONES OF THE WESTERN INTERIOR: USGS PROF. PAPER 994-A, 29 P.}{Deposit:: HOUSTON, R.S., AND MURPHY, J.F., 1970, FOSSIL BEACH PLACERS IN SANDSTONES OF LATE CRETACEOUS AGE IN WYOMING AND OTHER ROCKY MOUNTAIN STATES: WYOMING GEOL. ASSOC. 22D ANN. FIELD CONF. GUIDEBOOK, P. 241-249.}{Deposit:: DOW, V.T., AND BATTY, J.V., 1961, RECONNAISSANCE OF TITANIFEROUS SANDSTONE DEPOSITS OF UTAH, WYOMING, NEW MEXICO, AND COLORADO: USBM RI-5860.}{Deposit:: AEC, 1955, PRELIMINARY RECONNAISSANCE REPORTS: ED/R-465 THROUGH 471 AND ED/R-493 THROUGH 500.}
ReporterSchwochow, Stephen D.