Sturgis Formation (Upper Pennsylvanian)
Subtitle: a new map unit in the western Kentucky coal field
By: by Thomas M. Kehn.
Series: Contributions to stratigraphy; Geological Survey bulletin 1394-B; Geological Survey bulletin ;; 1394-B.
Publisher: U.S. Govt. Print. Off.
Published: 1973
Place of publication: Washington
Language: eng
Number of pages: 24
Subjects: Geology, Stratigraphic -- Pennsylvanian; Geology, Stratigraphic -- Nomenclature -- Kentucky
Notes: Bibliography: p. B23-B24.