Usage:
No current usage.
(†Carwood Formation of Borden Group (IN*,KY) replaced with Spickert Knob Formation of the Borden Group. See Spickert Knob.)
Geologic age:
Mississippian, Early*
Osagean
Type section, locality, area and/or origin of name:
Named from exposures near village of Carwood (Bridgeport), 4.75 mi southeast of Borden, in NW/4 NW/4 sec. 4, T. 1 S., R. 6 E., Clark Co., southeastern IN. Any of the numerous exposures in Clark Co. might serve as a "type" section, the best one being along Borden-Martinsburg Road, 0.5 mi southwest of Borden (Stockdale, 1931).
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 ([ ]).