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Map showing publication footprint
  • Usage in publication:
    • Craigmont Member
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Basalt
  • AAPG geologic province:
    • Eastern Columbia basin
Publication:

Camp, V.E., 1981, Geologic studies of the Columbia Plateau; Part 2, Upper Miocene basalt distribution, reflecting source locations, tectonism, and drainage history in the Clearwater embayment, Idaho: Geological Society of America Bulletin, v. 92, no. 9, pt. 1, p. 669-678.


Summary:

Craigmont Member of Saddle Mountains Basalt of Columbia River Basalt Group. Present only on uplifted Nez Perce platform of the Clearwater embayment in Idaho. Consists of fine- to medium-grained basalt and rare olivine; has normal polarity. Overlies Icicle Flat Member (new) and Grangeville Member (new), and is equivalent to the upper part of the Swamp Creek Member (new); all of Saddle Mountains Basalt. Age is late Miocene.
Type locality: Craigmont, [northwestern Craigmont 7.5-min quadrangle], Lewis Co., ID.

Source: US geologic names lexicon (USGS Bull. 1565, p. 78); 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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