Subject: Formations (Geology) / Temporal Coverage: Cretaceous - Yale University Library GeoBlacklight Search Results

Start Over Subject Formations (Geology) Temporal Coverage Cretaceous

1. Electric log correlations of the upper Cretaceous rocks in the Mesaverde Group, Baxter Shale, and equivalent units across the Great Divide Basin in southwest Wyoming

1986. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Branch of Distribution. English. Public. Wyoming. Cretaceous.

2. Thickness of upper Cretaceous rocks from the base of the Niobrara Formation to the top of the Frontier Formation, including the Carlile shale, Greenhorn Formation, and Sage Breaks shale, Powder River Basin, Wyoming and Montana [microform]

1987. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey. English. Public. Powder River Basin (Wyo. and Mont.). Cretaceous.