Subject: Petrology / Year: 1987 - Yale University Library GeoBlacklight Search Results

1. Structure at the base of the upper Cretaceous Fox Hills sandstone, 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.

2. 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.

3. Structure at the top of the Minnekahta limestone member of the Permian Goose Egg Formation, Powder River Basin, Wyoming and Montana

1987. 2002-06-01T04:00:00Z. 2008-09-09T13:11:54Z. Geological Survey (U.S.). The Survey. English. Public. Powder River Basin (Wyo. and Mont.). Permian.

4. Structure at the top of the Permian Minnelusa 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.). Permian.

5. Structure at the upper Cretaceous Ardmore bentonite bed, 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.

6. Structure at the upper Cretaceous clay spur bentonite bed, 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.

7. 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.

8. Thickness of lower Cretaceous Inyan Kara Group, 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.

9. Thickness of lower Cretaceous Mowry shale, Powder River shale, Powder River Basin, Wyoming and Montana

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.

10. Thickness of lower Cretaceous 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.). Cretaceous.

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1. Structure at the base of the upper Cretaceous Fox Hills sandstone, Powder River Basin, Wyoming and Montana [microform]

2. Structure at the Jurassic unconformity between the "Upper Sundance Formation" and the "Lower Sundance Formation", Powder River Basin, Wyoming and Montana [microform]

3. Structure at the top of the Minnekahta limestone member of the Permian Goose Egg Formation, Powder River Basin, Wyoming and Montana

4. Structure at the top of the Permian Minnelusa Formation, Powder River Basin, Wyoming and Montana [microform]

5. Structure at the upper Cretaceous Ardmore bentonite bed, Powder River Basin, Wyoming and Montana [microform]

6. Structure at the upper Cretaceous clay spur bentonite bed, Powder River Basin, Wyoming and Montana [microform]

7. Thickness of Jurassic rocks, Powder River Basin, Wyoming and Montana [microform]

8. Thickness of lower Cretaceous Inyan Kara Group, Powder River Basin, Wyoming and Montana [microform]

9. Thickness of lower Cretaceous Mowry shale, Powder River shale, Powder River Basin, Wyoming and Montana

10. Thickness of lower Cretaceous rocks, Powder River Basin, Wyoming and Montana [microform]

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