Usage:
No current usage?
(†/Gibson Limestone Member of Grindstone Creek Formation of Millsap Lake Group (TX-local) considered obsolete? Uncertain if used by the TX Geol. Survey. Not used by the USGS.)
[Preoccupied. Name previously applied to Gibson Coal Member of Crevasse Canyon Formation by Sears (1925) in NM.]
Geologic age:
Pennsylvanian, Middle
Type section, locality, area and/or origin of name:
Named from exposures along Gibson Creek, Erath Co., north-central TX (Weart, chairman, 1954; name credited to H.T. Mann).
AAPG geologic province:
Strawn 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 ([ ]).