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  • Usage in publication:
    • Dtokoah Point Member*
  • Modifications:
    • Named
  • Dominant lithology:
    • Sandstone
    • Siltstone
  • AAPG geologic province:
    • Olympic Mountains province
Publication:

Snavely, P.D., Jr., Niem, A.R., MacLeod, N.S., Pearl, J.E., and Rau, W.W., 1980, Makah Formation; a deep-marginal-basin sequence of late Eocene and Oligocene age in the northwestern Olympic Peninsula, Washington, IN Shorter contributions to stratigraphy: U.S. Geological Survey Professional Paper, 1162-B, 28 p. [Available online from the USGS PubsWarehouse: http://pubs.er.usgs.gov/pubs/pp/pp1162B]


Summary:

Type section: exposures on Dtokoah Point and wave-cut platform, NW 1/4 SE 1/4 sec.12 T33N R15W, Strait of Juan de Fuca, Clallam Co, WA. Consists of fine-grained, rib-forming beds of olive-gray sandstone and siltstone. Is 65 m thick. Separated from underlying Baada Point Member (new) and overlying Dtokoah Point and Carpenters Creek Members (new) by unnamed strata. Is late Eocene age.

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


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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