Usage:
Calloway Creek Limestone (KY*)
Geologic age:
Late Ordovician (Cincinnatian; early Maysvillian)*
Type section, locality, area and/or origin of name:
Type section: roadcuts of U.S. Interstate Highway I-75 beginning about 0.4 mi south of Kentucky River and extending southward to 0.6 mi north of KY Highway 388, Madison Co., KY. Named from Calloway Creek, north-central Madison Co., central KY (Weir and others, 1965).
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 ([ ]).