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Geologic Unit: Gaines
Map showing publication footprint
  • Usage in publication:
    • Gaines group
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Not stated
  • AAPG geologic province:
    • Klamath Mountains province
Publication:

Anderson, F.M., 1937, Synopsis of the Upper Cretaceous deposits [Chico series] in California and Oregon [abs.]: American Association of Petroleum Geologists Bulletin, v. 21, no. 12, p. 1612.


Summary:

Pg. 1612. Gaines group, in lower part of Chico series; embraces late Albian to Turonian, [late Early to Late Cretaceous]. Thickness 5,300 feet. Underlies Panoche group.
Present in western Shasta Co., northern CA.

Source: US geologic names lexicon (USGS Bull. 1200, p. 1451-1452).


Map showing publication footprint
  • Usage in publication:
    • Gaines stage
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Klamath Mountains province
Publication:

Anderson, F.M., 1943, Synopsis of the later Mesozoic in California, IN Jenkins, O.P., and others, Geologic formations and economic development of the oil and gas fields of California; in four parts, including outline geologic map showing oil and gas fields and drilled areas: California Division of Mines Bulletin, no. 118, pt. 2, p. 183-186.


Summary:

Pg. 185 (fig. 69) [preprint 1941]. Gaines stage. Shown as a stage, based on faunal assemblage, in Pioneer group.

Source: US geologic names lexicon (USGS Bull. 1200, p. 1451-1452).


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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