Usage:
Baca Formation (AZ*,NM*)
Geologic age:
early Tertiary (Eocene)*
Type section, locality, area and/or origin of name:
Type section: exposures in Baca Canyon, in secs. 4, 5, 8, and 9, T. 1 N., R. 4 W., north Bear Mountain, Socorro Co., central NM (Wilpolt and others, 1946).
AAPG geologic province:
Basin-and-Range 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 ([ ]).