Clays Ferry Formation (IN*,KY*,OH*)
Clays Ferry Formation of Cincinnati group (informal) (OH)
(Cincinnati group considered informal by the OH Geol. Survey. The rank or lithologic term should not be capitalized.)
Point Pleasant Tongue (IN*,KY*,OH*).
Type section: south of Kentucky River in gully a few tens of feet northeast of U.S. Interstate Highway I-75 bridge over river and in roadcuts on northeast side of I-75, Ford quadrangle, Madison Co., KY (Weir and others, 1965).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.
"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).