Stratigraphic framework of the Devonian black shales of the Appalachian basin
By: by John B. Roen, Wallace de Witt, Jr
Contributors: De Witt, Wallace, 1920-; Geological Survey (U.S.)
Series: Open-file report -- 84-111; U.S. Geological Survey open-file report -- 84-111
Publisher: U.S. Dept. of the Interior, Geological Survey
Published: 1984
Place of publication: [Reston, Va.?]
Language: eng
Format: Microform
Subjects: Geology, Stratigraphic -- Devonian; Shale -- Appalachian Region
Notes: Microfiche. [Denver, Colo. : U.S. Geological Survey, 1984?]. 17 microfiches ; 11 x 15 cm

Bibliography: p. 70-71