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National Geologic Map Database

Geologic Unit: Alferitz

Usage:

Alferitz Formation (CA)


Geologic age:

late Tertiary (Miocene)


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

Notable exposures in Devils Den oil field district in northwestern Kern Co. adjacent to Kings Co. line, about 40 mi from Paso Robles and about 60 mi northwest of Bakersfield, central CA (Couvering and Allen, 1943).


AAPG geologic province:

San Joaquin 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 ([ ]).