Mine detail: Maybell Mines

Previously called 'Marge MineGertrude PitsTrace Elements Pits'

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Location

Lat / long:

40.54719, -107.99511

Resource(M)

Primary:	Uranium
Secondary:	Molybdenum
Ore:	Ilsemannite, Jordisite, Uranophane
Gangue:	Calcite, Clay, Gypsum, Jarosite, Limonite, Pyrite, Quartz
Orebody form:	LENTICULAR
Discovery year:	1954

Production

Operation type:	Unknown
Production size:	Medium
Development status:	Producer
First production started:	1955

Geology

Host rock:	Browns Park Formation
Host type:	Sandstone
Structure:	Washakie Basin, Axial Basin, Lay Syncline, Maybell Monocline, Normal Fault (Unnamed)
Tectonic:	Colorado Platform
Alteration processes:	Oxidation Of Fe And U Minerals

References

MRDS	D008020
DEP	10107975
Reference	{Deposit:: NELSON-MOORE, J.L., COLLINS, D.B., AND HORNBAKER, A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY; COLORADO GEOLOGICAL SURVEY BULL. 40, P. 268, 271.}{Deposit:: MCKAY, E.J., AND BERGIN, M.J., 1974, GEOLOGIC MAP OF THE MAYBELL QUADRANGLE, MOFFAT COUNTY, COLORADO: USGS GQ-1145.}{Deposit:: WRIGHT, R.J., AND EVERHART, D.L., 1960, URANIUM, IN DEL RIO, S.M., MINERAL RESOURCES OF COLORADO-FIRST SEQUEL: COLO. STATE MINERAL RESOURCES BD., P. 343-347.}{Deposit:: KING, R.U., (UNPUBLISHED DATA)}{Production:: COLO. DIV. MINES ANN. OPERATOR REPTS.}
Reporter	Schwochow, Stephen D. (King, Robert U.)