The Middle Devonian Marcellus Shale in the Appalachian basin extends from central Ohio on the west to eastern New York on the east, and from north-central New York on the north to northern Tennessee on the south. Its thickness ranges from 0 feet (ft) wher
Enomoto, Catherine B. cenomoto@usgs.gov,Olea, Ricardo A.,Coleman, James L. Jr. jlcoleman@usgs.gov. Characterization of the Marcellus Shale based on computer-assisted correlation of wireline logs in Virginia and West Virginia. 2014-01-01.