Usage:
Tumey Sandstone Lentil of Kreyenhagen Shale (CA*)
Tumey Formation (CA*)
Tumey Shale (CA*)
Geologic age:
Tertiary
Eocene, late*
Type section, locality, area and/or origin of name:
In S/2 sec. 16, T. 16 S., R. 13 E., Monocline Ridge 7.5-min quadrangle, Fresno Co., CA. Named from nearby Tumey Gulch (Atwill, 1935; Bartow, 1996).
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 ([ ]).