Alaska
Occurrence

Unnamed

Alaska, United States
Niobium (Columbium)ThoriumUraniumREECeriumTungsten
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Commodities
PrimaryNiobium (Columbium), Thorium, Uranium
SecondaryREE, Cerium, Tungsten
Commodity typeM
Deposit
Model155: Volcanogenic U
Geology
Host rockRhyolite
Associated rockRhyolite
AlterationSmoky quartz.
Economic & production
Development statusOccurrence
Identification
Deposit ID10001663
MRDS IDA012440
RegionNA
Data scoreD
Coordinates63.96064, -153.1791
References
Miller, T.P., Moll, E.J., and Patton, W.W. Jr., 1980, Uranium and thorium rich volcanic rocks of the Sischu Creek area, Medfra quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-803, 27 pages.Clautice, K.H., Bowman, N.D., Clough, J.G., Gilbert, W.G., Kline, J.T., Smith, T.E., and Blodgett, R.B., 1993, Land selection Unit 8 (Kantishna River, Ruby, and Medfra quadrangles): References, lead isotope, geochemical and major oxide data: Alaska Division of Geological and Geophysical Surveys, 42 p., 1 sheet, scale 1:250,000.