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National Geologic Map Database

Geologic Unit: Catahoula

Usage:

Catahoula Formation (LA*,MS*,TX*)
Catahoula Sandstone (AL*,FL*,MS*,TX*)
Catahoula Tuff (TX*)
[?] Catahoula Group (LA,TX)


Subunits:

(alphabetical): Cassel Hill Member (LA), Chalk Hills Member (LA), Chita Sand Member (TX), Chusa Tuff Member (TX*), Corough Sandstone Member (TX), Dunlap Quarry Sandstone Member (TX), Fant Tuff Member (TX*), Onalaska Member (TX), Soledad Conglomerate Member (TX*), Tatum Limestone Member (AL*,FL*,LA*,MS*).


Geologic age:

Oligocene and Miocene*


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

Named from typical development in Catahoula Parish, LA (Veatch, 1905).


AAPG geologic province:

Arkla basin
Gulf Coast basin*
Mid-Gulf Coast basin*
Upper Mississippi embayment*


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).