Usage:
Bruton Formation of /Fresnal Group (NM-notable exposures in Oscura Mountains)
[A "group" consists of 2 or more formations (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021).]
Geologic age:
Late Pennsylvanian (Virgilian)
Type section, locality, area and/or origin of name:
Type locality: northeast side of Oscura Mountains, in SE/4 sec. 32, T. 5 S., R. 6 E., [Bingham 15-min quadrangle], Socorro Co., central NM. Named from Bruton Tank, [1+ mi southeast of type locality, in sec. 9, T. 6 S., R. 6 E., Bingham 15-min quadrangle] (Thompson, 1942).
AAPG geologic province:
Orogrande 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 ([ ]).