Usage:
No current usage.
(†A-L Peak Tuff, †A-L Peak Rhyolite, or †A-L Peak Formation (NM) replaced with South Canyon Tuff. See South Canyon.)
Geologic age:
Tertiary
Oligocene
Type section, locality, area and/or origin of name:
Type locality: on northeast flank of A-L Peak, in secs. 33, 34, and 35, T. 4 S., R. 6 W., northern San Mateo Mountains, Socorro Co., central NM (Deal and Rhodes, 1976).
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 ([ ]).