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  • Usage in publication:
    • Ignek Valley Member
  • Modifications:
    • Named
    • Biostratigraphic dating
  • Dominant lithology:
    • Sandstone
  • AAPG geologic province:
    • Alaska Northern region
Publication:

Mull, C.G., 1987, Kemik Sandstone, Arctic National Wildlife Refuge, northeastern Alaska, IN Tailleur, I.L., and Weimer, Paul, eds., Alaskan North Slope geology; Volume 1: Society of Economic Paleontologists and Mineralogists, Pacific Section, North Slope Seminar II, AAPG/SEPM/SEG Pacific Section annual meeting, Anchorage, AK, May 22-24, 1985, book 50, p. 405-431., Prepared by SEPM Pacific Section and Alaska Geol. Soc


Summary:

Named as member (of 2) of Kemik Sandstone (redefined) on north side of Brooks Range. Type section designated on upper Katakturuk River in Ignek Valley (NE/4 SE/4 sec.3 T2N R27E), Mt. Michelson quad, northern AK. Is very fine to fine-grained, moderate to well sorted, subangular to subrounded sandstone, about 100 ft thick. In Ignek and Canning River valley overlies Kingak Shale. Underlies pebble shale unit. Microfauna (listed in table) indicate Early Cretaceous age (Hauterivian to Barremian and Neocomian).

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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