Usage:
Turlock Lake Formation (CA*)
Subunits:
(alphabetical) --all in CA*: Corcoran Clay Member, Friant Pumice Member.
Geologic age:
Quaternary
Pleistocene*
Type section, locality, area and/or origin of name:
Type section: roadcuts in E/2 SW/4 sec. 31, T. 3 S., R. 13 E., Cooperstown 7.5-min quadrangle, Stanislaus Co., CA (Marchand and Allwardt, 1981).
AAPG geologic province:
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 ([ ]).