Usage:
Ohio Shale (OH*,KY*,VA*,PA*,WV*)
Ohio Shale Member of Chattanooga Shale (KY)
Subunits:
Huron Member (KY*,OH*,PA,VA*,WV*), Three Lick Bed (KY*,OH*,WV*), Cleveland Member (KY*,OH*).
Geologic age:
Late Devonian (Famennian)*
Type section, locality, area and/or origin of name:
Ohio River hills, in the neighborhood of Rockville, Adams Co., OH (Andrews, 1870).
AAPG geologic province:
Appalachian basin*
Cincinnati arch*
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).