Usage:
Logansport Formation of Midway Group (TX)
Subunits:
(alphabetical) --all in TX: Cow Bayou Member, Lime Hill Member.
Geologic age:
Paleocene
Type section, locality, area and/or origin of name:
Type locality: eastern side of Sabine River just above bridge at Logans port, De Soto Parish, LA. Outcrop belt extends into Shelby and Panola Cos., TX (Murray and Thomas, 1945).
AAPG geologic province:
Arkla basin
East Texas 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 ([ ]).