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Calloway creek limestone and Ashlock and Drakes formations (Upper Ordovician) in South-Central Kentucky / by Gordon W. Weir, Robert C. Greene and George C. Simmons.

By: Weir, Gordon W, 1922-2011.
Contributor(s): Greene, Robert C | Simmons, George Clarke, 1923-.
Material type: materialTypeLabelBookSeries: Geological Survey Bulletin; 1224-D.Publisher: Washington : United States Government Printing Office, 1965Description: 36 p. --.Content type: Texto (visual) Media type: sin mediación Subject(s): Estratigrafía | Kentucky | Ordovícico
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