Subject: Petrology / Temporal Coverage: Jurassic - Yale University Library GeoBlacklight Search Results

Start Over Subject Petrology Temporal Coverage Jurassic

1. Structure at the Jurassic unconformity between the "Upper Sundance Formation" and the "Lower Sundance Formation", 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.). Jurassic.

2. Thickness of Jurassic rocks, 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.). Jurassic.