Usage:
Mariposa Slate (CA*)
Mariposa Formation (CA*)
Subunits:
Brower Creek Volcanic Member (CA*).
Geologic age:
Late Jurassic*
Type section, locality, area and/or origin of name:
Named from exposures in Mariposa estate, Mariposa Co., CA (Becker, 1885).
Type area stated to be around Mariposa estate, southeast of Bagby, Mariposa Co., CA (Clark, 1964).
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 ([ ]).