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Geologic Unit: Anita
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Map showing publication footprint
  • Usage in publication:
    • Anita shale
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Shale
  • AAPG geologic province:
    • Santa Maria basin
Publication:

Kelley, F.R., 1943, Eocene stratigraphy in western Santa Ynez Mountains, Santa Barbara County, California: American Association of Petroleum Geologists Bulletin, v. 27, no. 1, p. 1-19. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

Pg. 3, 4, 5, 6-7. Anita shale. Thick unit of Eocene shales with subordinate beds of sandstone and some limestone nodules. At one or more horizons, includes red foraminiferal shale. Disconformably underlies Matilija sandstone; disconformably overlies Upper Cretaceous sandstone. Thickness about 600 feet. Age is middle Eocene.
Type locality: on south side of Santa Anita Canyon 1 mi west of Big Bend [Santa Barbara Co.] south-central CA.

Source: US geologic names lexicon (USGS Bull. 1200, p. 102-103).


Map showing publication footprint
  • Usage in publication:
    • Anita shale
  • Modifications:
    • Mapped
  • Dominant lithology:
    • Shale
  • AAPG geologic province:
    • Santa Maria basin
Publication:

Dibblee, T.W., Jr., 1950, Geology of southwestern Santa Barbara County, California; Point Arguello, Lompoc, Point Conception, Los Olivos, and Gaviota quadrangles: California Division of Mines Bulletin, no. 150, 95 p., (incl. geologic maps, scale 1:62,500)


Summary:

Pg. 26, pls. 1, 2, 5, 6. Anita shale. Consists of about 1,000 feet of clay shale lying above Jalama formation (new). Relationship to the Jalama appears to be conformable, but in northerly exposures [Santa Ynez Range] the Anita rests unconformably on Jalama and older formations. Age is middle Eocene.

Source: Publication; US geologic names lexicon (USGS Bull. 1200, p. 102-103).


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 ([ ]).

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