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National Geologic Map Database

Geologic Unit: Brown Mountain

Usage:

Brown Mountain Sandstone of Panoche Group (CA)
Brown Mountain Sandstone Member of Moreno Grande Formation (CA)
Brown Mountain Sandstone [unranked] in Panoche Formation (CA)


Geologic age:

Late Cretaceous


Type section, locality, area and/or origin of name:

Not stated. Occurs in Coalinga-Ortigalito area, San Joaquin Valley, central CA.


AAPG geologic province:

Sacramento 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 ([ ]).