Usage:
Cincinnati group (informal) (OH)
Usage of the OH Geol. Survey. The rank or lithologic term should not be capitalized.
Subunits:
(alphabetical) --all in OH: Arnheim Formation, Drakes Formation, Fairview Formation, Grant Lake Limestone or Grant Lake Formation, Kope Formation, Liberty Formation, Miamitown Shale, Saluda Formation, Waynesville Formation, Whitewater Formation.
Geologic age:
Late Ordovician
Type section, locality, area and/or origin of name:
Type area: Cincinnati, OH.
AAPG geologic province:
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 ([ ]).