Geologic map showing thickness of sedimentary rocks from the ground surface to the top of the upper Cretaceous Pierre Shale in the south half of the Powder River Basin, northeastern Wyoming and adjacent areas
Keyword(s):
1994 ◽
Keyword(s):
Thickness of Parkman Sandstone Member of the Upper Cretaceous Mesaverde Formation and the Redbird Silty Member of the Pierre Shale, Powder River basin, Wyoming and Montana