Usage:
Benwood limestone (informal, unranked) (OH,PA,WV)
Benwood Limestone of Monongahela Group (OH)
(Locally in PA called Sewickley Member of Pittsburgh Formation of Monongahela Group. See also Sewickley.)
For informal, unranked usage, the lithologic term should not be capitalized.
Geologic age:
Late Pennsylvanian
Type section, locality, area and/or origin of name:
Named from town of Benwood, Marshall Co., northern WV (Campbell, 1903).
AAPG geologic province:
Appalachian basin
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 ([ ]).