Friant Pumice Member of Turlock Lake Formation (CA*)
Friant Formation (CA)
Quaternary
Pleistocene*
Not synopsized to date. Named from exposures in vicinity of Friant, Friant 7.5-min quadrangle, Fresno Co., CA (Macdonald, 1941).
San Joaquin 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 ([ ]).