Usage:
Bopesta Formation (CA*)
Geologic age:
late Tertiary (middle Miocene; late Hemingfordian to early Barstovian NALMA)*
Type section, locality, area and/or origin of name:
Type section (revised): from NE/4 sec. 11, T. 32 S., R. 34 E., northeastward to base of overlying andesite, in NW/4 sec. 31, R. 35 E., Kern Co., CA (Dibblee and Louke, 1970).
Neostratotype [Principal reference section]: a few mi north of Mojave, along north-northwest transect in unnamed canyon which drains into Pine Tree Canyon, from NW/4 sec. 4, T. 22 S., R. 35 E., to SE/4 sec. 32, T. 31 S., R. 35 E., Cache Peak 7.5-min quadrangle, Kern Co., southern Sierra Nevada, CA (Quinn, 1987; see also Coles and others, SEPM-Pac. Sec., v. 82, p. 21-34).
AAPG geologic province:
Sierra Nevada province*
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 ([ ]).