Usage:
Laguna Formation (CA*)
Subunits:
Nomlaki Tuff Member (CA*).
Geologic age:
Quaternary
Pleistocene*
Tertiary
Pliocene, late*
Type section, locality, area and/or origin of name:
Type section: north bank of Hadselville Creek, short distance upstream from junction with Laguna Creek, about 1 mi northwest of Clay Post Office, in NE/4 NE/4 sec. 25, T. 6 N., R. 7 E., San Joaquin Co., CA (Piper and others, 1939).
AAPG geologic province:
Sacramento basin*
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 ([ ]).