Usage:
Ojo Bonito quartz monzonite (informal) (TX-local)
Ojo Bonito intrusion (informal) (TX-local)
Ojo Bonito stock (informal) (TX-local)
Recognized in southwestern TX, notably Infiernito caldera, Chinati Mountains.
Informal. The rank or lithologic term should not be capitalized.
Geologic age:
Tertiary (Eocene to Oligocene)
Type section, locality, area and/or origin of name:
Crops out in valley of Cibolo Creek, at eastern foot of main mass of Chinati Mountains, southwestern TX (Baker, 1929).
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 ([ ]).