Usage:
Rush Springs Sandstone of Whitehorse Group (OK*,TX*)
Rush Springs Formation of Whitehorse Group (OK*,TX*)
Subunits:
Dozier Sandstone Member (TX*).
Geologic age:
Middle Permian (Guadalupian)*
Type section, locality, area and/or origin of name:
Type locality: cliffs on river bluffs northeast of Tonkawa Twp., in sec. 36, T. 7 N., R. 10 W., Caddo Co., southwestern OK (Davis, 1955).
Apparently named from Rush Springs, Grady Co., southwestern OK (US geologic names lexicon, USGS Bull. 896).
AAPG geologic province:
Anadarko basin*
Palo Duro basin*
South Oklahoma folded belt*
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 ([ ]).