Uranium and diagenesis in evaporitic lacustrine mudstone of the Oligocene White River Group, Dawes County, Nebraska. Bulletin
Technical Report
·
OSTI ID:5911763
The Oligocene White River Group consists of the Chadron and the overlying Brule Formations in northwestern Nebraska. The Chadron Formation consists of alluvial and colluvial vitric mudstone beds, but in addition contains white persistent layers (purplish-white layers) that probably resulted from soil formation on vitric parent material. West of the current study area a basal sandstone facies of the Chadron is host rock for the Crow Butte uranium deposit. The Brule, which consists mostly of pedogenically altered alluvial and fluvial vitric mudstone deposits, contains a uraniferous lacustrine facies northwest of Chadron, Nebraska. Detrital minerals in rocks of the White River Group include quartz, feldspar, volcanic glass, smectite, and illite. Chemical precipitate minerals in the lacustrine facies are calcite, dolomite, and gypsum. Authigenic minerals include calcite, dolomite, gypsum, smectite, opal, chalcedony, together with oxidized uranium minerals.
- Research Organization:
- Geological Survey, Denver, CO (United States)
- OSTI ID:
- 5911763
- Report Number(s):
- PB-92-106475/XAB; USGS-BULL--1956
- Country of Publication:
- United States
- Language:
- English
Similar Records
Uranium and diagenesis in evaporitic lacustrine mudstone of the Oligocene White River Group, Dawes County, Nebraska
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Book
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Mon Dec 31 23:00:00 EST 1990
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OSTI ID:5594342
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· AAPG Bulletin (American Association of Petroleum Geologists); (USA)
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·
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CLAYS
DEVELOPED COUNTRIES
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DOLOMITE
FEDERAL REGION VII
FELDSPARS
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
GEOLOGY
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IGNEOUS ROCKS
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MINERAL RESOURCES
MINERALOGY
MINERALS
NEBRASKA
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ORES
OXIDE MINERALS
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SMECTITE
SULFATE MINERALS
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URANIUM ORES
USA
VOLCANIC ROCKS