- Usage in publication:
-
- Brown Mountain sandstone
- Modifications:
-
- [Original reference]
- Dominant lithology:
-
- [Sandstone]
- AAPG geologic province:
-
- Sacramento basin
Summary:
Pg. 962 (fig. 2). Brown Mountain sandstone (in Panoche formation or group). Name credited to J.Q. Anderson. Listed as uppermost of 10 subdivisions of Panoche formation (or group). Underlies Dosados member of Moreno formation; overlies Ragged Valley shale. Age is Late Cretaceous.
Type locality not stated. Occurs in San Joaquin Valley in Coalinga-Ortigalito area, central CA.
Source: US geologic names lexicon (USGS Bull. 1200, p. 496).
- Usage in publication:
-
- Brown Mountain sandstone member
- Modifications:
-
- Revised
- AAPG geologic province:
-
- Sacramento basin
Summary:
Pg. 31. Southward from Pacheo Pass to Coalinga region, Moreno Grande formation (new) includes restricted Moreno, Brown Mountain sandstone, and PACHYDISCUS silt (also called Ragged Valley shale) as members. Age is Late Cretaceous.
Source: US geologic names lexicon (USGS Bull. 1200, p. 496).
- Usage in publication:
-
- Brown Mountain sandstone
- Modifications:
-
- Overview
- AAPG geologic province:
-
- Sacramento basin
Summary:
Pg. 31. Brown Mountain sandstone, a poorly defined stratigraphic unit of late Late Cretaceous, is included in uppermost part of Panoche formation of this report [Ortigalito Peak quadrangle].
Source: US geologic names lexicon (USGS Bull. 1200, p. 496).
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 ([ ]).