scholarly journals Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian basin from Medina County, Ohio, through southwestern and south-central Pennsylvania to Hampshire County, West Virginia

2014 ◽  
Author(s):  
Robert T. Ryder ◽  
Anita G. Harris ◽  
John E. Repetski ◽  
Robert D. Crangle
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