Age of the Bedford Shale, Berea Sandstone, and Sunbury Shale in the Appalachian and Michigan basins, Pennsylvania, Ohio, and Michigan
By: by Wallace DeWitt, Jr.
Contributors: Geological Survey (U.S.)
Series: Contributions to stratigraphy; U.S. Geological Survey bulletin -- 1294-G
Publisher: U.S. Government Printing Office
Published: 1970
Place of publication: Washington, DC
Language: eng
Number of pages: 11
Subjects: Sandstone.; Shale.
Notes: Bibliogr.

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