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National Geologic Map Database

Geologic Unit: Cow Bayou

Usage:

Cow Bayou Member of Logansport Formation of Wilcox Group (TX*-notably Panola Co.)
Cow Bayou Formation of Wilcox Group (LA*-subsurface)


Geologic age:

early Tertiary (Paleocene)*


Type section, locality, area and/or origin of name:

Type locality: along Cow Bayou, in SE/4 sec. 9, and in NW/4 sec. 16, T. 10 N., R. 14 W., De Soto Parish, northwestern LA, approx. 3 mi southeast of Hunter on road to Converse (Murray and Thomas, 1945).


AAPG geologic province:

Arkla 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 ([ ]).