Usage:
Delaware Mountain Group (NM*,TX*)
Subunits:
(alphabetical) --all in NM*,TX*: Bell Canyon Formation, Brushy Canyon Formation, Cherry Canyon Formation.
Geologic age:
Permian, Middle**
Guadalupian**
Type section, locality, area and/or origin of name:
Named from prominent exposures in Delaware Mountains, El Paso Co. [now in Culberson Co.], western TX (Richardson, 1904).
AAPG geologic province:
Permian 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 ([ ]).