Usage:
Carnahan Bayou Member of Fleming Formation (LA*)
Geologic age:
Miocene*
Type section, locality, area and/or origin of name:
Basal beds are typically exposed in roadcuts along U.S. Highway 71W, south of Lena, Rapides Parish, central LA. Named from Carnahan Bayou [Carnahan Creek, Boyce and Lena 7.5-min quadrangles, Rapides Parish, central LA] (Fisk, 1940).
AAPG geologic province:
Arkla basin*
Gulf Coast 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 ([ ]).