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Thickness of Upper Cretaceous rocks from the base of the Ardmore Bentonite to the base of the Clay Spur Bentonite (top of the Lower Cretaceous rocks), Powder River basin, Wyoming and Montana

Open-File Report 87-340-F

By:
and ORCID iD

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Abstract

Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Thickness of Upper Cretaceous rocks from the base of the Ardmore Bentonite to the base of the Clay Spur Bentonite (top of the Lower Cretaceous rocks), Powder River basin, Wyoming and Montana
Series title:
Open-File Report
Series number:
87-340
Chapter:
F
Edition:
-
Year Published:
1987
Language:
ENGLISH
Description:
1 map :photocopy ;55 x 55 cm., on sheet 78 x 79 cm.