GEOLOGY OF THE GREEN RIVER MINING DISTRICT, EMERY AND GRAND COUNTIES, UTAH
Uranium deposits have been known since the 1880's in the Green River district of eastern Emery County and western Grand County in southeastern Utah. Outcropping rocks include the Entrada sandstone and the Carmel, Curtis, Summerville, and Morrison formations of Late Jurassic age; the Cedar Mountain formation of Early Cretaceous age, the Naturita formation of probable Late Cretaceous age in this area, and the Mancos shale of Late Cretaceous age. Uranium is found chiefly in the Salt Wash sandstone member of the Morrison, and the largest deposits occur in a thick sandstone unit near the top of the member in the Tidwell mineral belt near the western edge of the district. The geology of the district is described in detail. (C.H.)
- Research Organization:
- Grand Junction Operations Office. Production Evaluation Div., AEC
- NSA Number:
- NSA-15-030955
- OSTI ID:
- 4833929
- Report Number(s):
- RME-98(Rev.)
- Country of Publication:
- United States
- Language:
- English
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