Usage:
Beacon Peak Tuffs (CA-recognized locally in Donner Pass area)
(†Beacon Peak Tuffs not used by the USGS.)
[Preoccupied. Name previously applied to Beacon Peak Member of Nevada Formation (now Beacon Peak Dolomite) by Nolan and others (1956) in NV.]
Geologic age:
Oligocene, late
or
Miocene, early
Type section, locality, area and/or origin of name:
[Type locality not stated. Beacon Peak is in SE/4 sec. 17, T. 17 N., R. 15 E., Donner Pass quadrangle, eastern CA.]
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 ([ ]).