Author: Ryder, Robert T. / Access: Public - Yale University Library GeoBlacklight Search Results

1. Geologic cross section C-C' through the Appalachian basin from Erie County, north-central Ohio, to the Valley and Ridge Province, Bedford County, south-central Pennsylvania [cartographic material]

2012. 2012-07-11T14:05:56Z. 2013-03-18T22:05:30Z. Ryder, Robert T. U.S. Dept. of the Interior, U.S. Geological Survey ; For sale by U.S. Geological Survey, Information Services. English. Public. Appalachian Basin and Appalachian Basin.

2. Stratigraphic framework and depositional sequences in the Lower Silurian regional oil and gas accumulation, Appalachian Basin, from Licking County, Ohio, to Fayette County, West Virginia [cartographic material]

2006. 2012-01-13T19:48:51Z. 2012-03-05T17:33:06Z. Ryder, Robert T. U.S. Geological Survey ; For sale by U.S. Geological Survey, Information Services. English. Public. Appalachian Basin, Ohio, West Virginia, Appalachian Basin., Ohio., and West Virginia. Silurian.

3. Stratigraphic framework of Cambrian and Ordovician rocks in the Appalachian Basin from Sequatchie County, Tennessee, through eastern Kentucky, to Mingo County, West Virginia

2008. 2008-11-11T15:36:27Z. 2012-04-26T14:16:08Z. Ryder, Robert T. U.S. Dept. of the Interior, U.S. Geological Survey ; For sale by U.S. Geological Survey, Information Services. English. Public. Appalachian Basin and Appalachian Basin. Cambrian and Ordovician.