Usage:
Delleker Formation (CA)
Geologic age:
Miocene
Type section, locality, area and/or origin of name:
Named from recently abandoned sawmill community of Delleker, [northeastern CA], which is partly on Blairsden and partly on Portola quadrangles; name appears only on the latter, edition of 1950. Most representative section is in Blairsden quadrangle in sec. 32, T. 23 N., R. 13 E., 2.5 mi west of Delleker on east side of Willow Creek (Durrell, 1957).
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 ([ ]).