- Usage in publication:
-
- Epworth gravel member
- Modifications:
-
- Original reference
- Dominant lithology:
-
- Gravel
- Clay
- Silt
- AAPG geologic province:
-
- Ventura basin
Summary:
Pg. B-103, pls. B-1C, B-2. Named Epworth gravel member of San Pedro formation. Consists of up to 300 feet of gravel, gravelly clay, and silt, grading westward and southward into silt and clay. Gravels occur near top of formation and have been folded and partly eroded. Age is early Pleistocene.
[Type lcoality not stated.] Occurs in a limited area around Moorpark, Ventura Co., southern CA.
Source: US geologic names lexicon (USGS Bull. 1200, p. 1273).
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 ([ ]).