National Geologic Map Database
General Information
- Title: Government Draw Bentonite Beds; a newly identified stratigraphic marker in the Virgin Creek Member of the Pierre Shale, central South Dakota
- Author(s): Nichols, T.C., Jr., Chleborad, A.F., and Collins, D.S.
- Publishing Organization: The Rocky Mountain Association of Geologists
- Series and Number: The Mountain Geologist v. 24, no. 3 [p. 77-80]
- Publication Date: 1987
- Cross Section: None
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