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Map showing publication footprint
  • Usage in publication:
    • Swamp Creek Member
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Basalt
  • AAPG geologic province:
    • Idaho Mountains province
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:

Swamp Creek Member of Saddle Mountains Basalt of Columbia River Basalt Group. Present in upper North Fork area of the Clearwater embayment in Idaho. Consists of medium- to coarse-grained olivine basalt containing abundant olivine phenocrysts; has normal polarity. Lies above the basalt of Weippe in the Pomona Member of Saddle Mountains Basalt. Age is late Miocene.
Type locality: Swamp Creek, North Fork of the Clearwater River, [Little Green Mountain 7.5-min quadrangle], Clearwater Co., ID.

Source: US geologic names lexicon (USGS Bull. 1565, p. 314); GNU records (USGS DDS-6; Denver 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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