Usage:
No current usage.
(†Agua Fria Formation or †Agua Fria Slates (CA) considered obsolete.)
Geologic age:
late Middle to early Late Jurassic
Type section, locality, area and/or origin of name:
Notable exposures in Sierra Nevada, east-central CA; in type section for southern end of †Amador Group [later abandoned] on Merced River, Tuolumne and Mariposa Cos., and southward into Indian Gulch quadrangle, Mariposa Co. Origin of name not stated by author, but presumably named from Agua Fria Creek in southeast corner of Coulterville 15-min quadrangle, Mariposa Co. (Taliaferro, 1933, 1943).
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 ([ ]).