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Carnotite-bearing sandstone in Cedar Canyon, Slim Buttes, Harding County, South Dakota

Trace Elements Investigations 411

This report concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission
By:
,
DOI: 10.3133/tei411

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Abstract

Carnotite-bearing sandstone and clay have been found in the Chadron formation of the White River group of Oligocene age in the southern part of the Slim Buttes area, Harding County, S. Dak. Locally the mineralized sandstone contains as much as 0.23 percent uranium. The uranium and vanadium ions are believed to have been derived from the overlying mildly radioactive tuffaceous rocks of the Arikaree formation of Miocene age. Analyses of water from 26 springs issuing from the Chadron and Arikaree formations along the margins of Slim Buttes show uranium contents of as much as 200 parts per billion. Meteoric water percolating through tuffaceous rocks is thought to have brought uranium and other ions into environments in the Chadron formation that were physically and chemically favorable for the deposition of carnotite.

Geospatial Extents

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Carnotite-bearing sandstone in Cedar Canyon, Slim Buttes, Harding County, South Dakota
Series title:
Trace Elements Investigations
Series number:
411
DOI:
10.3133/tei411
Year Published:
1954
Language:
English
Publisher:
U.S. Geological Survey
Description:
Report: 33 p.; 1 Plate: 22.14 x 18.30 inches
Number of Pages:
34
Country:
United States
State:
South Dakota
County:
Harding County
Other Geospatial:
Cedar Canyon;Slim Buttes