Clays Ferry formation (Ordovician) -- a new map unit in south-central Kentucky / by Gordon W. Weir and Robert C. Greene ; prepared in cooperation with the Kentucky Geological Survey.
- Physical Description: 1 online resource (iii, 18 pages) : illustrations.
- Publisher: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1965.
- Distributor: Washington : United States Government Printing Office
|General Note:|| Title from title screen (viewed September 15, 2014).
|Bibliography, etc. Note:|| Includes bibliographical references (pages 17-18).
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Geology, Stratigraphic > Ordovician.
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- Geological Survey bulletin ; 1224-B
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