Preliminary stratigraphic cross section showing radioactive zones in the Devonian black shales in eastern Ohio and west-central Pennsylvania
| Main Author: | Roen, John B. |
|---|---|
| Other Authors: | Wallace, Laure G., De Witt, Wallace, Jr., 1920-2012., Geological Survey (U.S.) |
| Format: | Map |
| Language: | English |
| Published: |
Reston, Va. :
U.S. Geological Survey,
1978.
|
| Physical Description: |
1 section ; 47 x 103 cm folded in envelope 31 x 25 cm. |
| Series: |
Oil and gas investigations chart ;
OC-82. |
| Subjects: |