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Map showing publication footprint
  • Usage in publication:
    • Camas Valley Member
  • Modifications:
    • Named
    • Biostratigraphic dating
  • Dominant lithology:
    • Sandstone
    • Siltstone
  • AAPG geologic province:
    • Oregon-Washington Coast Ranges province
    • Klamath Mountains province
Publication:

Baldwin, E.M., 1974, Eocene stratigraphy of southwestern Oregon: Oregon Department of Geology and Mineral Industries Bulletin, no. 83, 40 p., (incl. geologic map, scale 1:250,000)


Summary:

Unit is named the Camas Valley Member (upper of two) of The Flournoy Formation (new) for exposures in Camas Valley, Douglas Co., OR. Also occurs in Flournoy Valley. Is composed of thin, rhythmically bedded, fine-grained, sandstone and siltstone with some thin limestone layers or limestone concretions. Is 1500 ft thick. Overlies the White Tail Ridge Member (new) of the Flournoy Formation; underlies the Tyee Formation. Age is middle Eocene based on microfossils.

Source: GNU records (USGS DDS-6; Menlo GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Camas Valley Member
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Oregon-Washington Coast Ranges province
    • Klamath Mountains province
Publication:

Thoms, R.E., 1975, Biostratigraphy of the Umpqua Group, southwestern Oregon, IN Weaver, D.W., Hornaday, G.R., and Tipton, Ann, eds., Paleogene symposium and selected technical papers [proceedings]; conference on future energy horizons of the Pacific Coast: American Association of Petroleum Geologists, Pacific Section, 50th joint annual meeting of Pacific Sections of American Association of Petroleum Geologists, Society of Economic Paleontologists and Mineralogists, and Society of Exploration Geophysicists, Long Beach, CA, April 23-26, 1975, v. 50, p. 513-562.


Summary:

Camas Valley Member of Flournoy Formation of Baldwin (1974) is included in Umpqua Group. [Author discusses reasons for raising rank of Umpqua Formation.]

Source: GNU records (USGS DDS-6; Menlo GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Camas Valley Member
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Oregon-Washington Coast Ranges province
    • Klamath Mountains province
Publication:

Molenaar, C.M., 1985, Depositional relations of Umpqua and Tyee Formations (Eocene) southwestern Oregon: American Association of Petroleum Geologists Bulletin, v. 69, no. 8, p. 1217-1229. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

Camas Valley Member of the Flournoy Formation of Baldwin (1974) is reassigned as uppermost member (of 4) of Umpqua Formation. [members of Umpqua Formation are not adopted in this paper; Flournoy Formation is not recognized]

Source: GNU records (USGS DDS-6; Menlo GNULEX).


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