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  • Usage in publication:
    • Marsh Creek Member
  • Modifications:
    • Named
    • Biostratigraphic dating
  • Dominant lithology:
    • Siltstone
  • 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 for Marsh Creek Member designated on west fork of Marsh Creek (SW/4 SE/4 sec.22 T4N R29E), Mt. Michelson quad, northern AK. Is dominantly siltstone which contains numerous isolated quartz and gray and black chert pebbles, about 100 ft thick. Along north side of eastern Sadlerochit Mountains, unit unconformably overlies Ivishak Formation; at Last Creek unconformably overlies Shublik Formation. Underlies pebble shale unit. Microfauna (listed in table) indicate age is Early Cretaceous (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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