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Geologic Unit: Kayak
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Map showing publication footprint
  • Usage in publication:
    • Kayak shale*
  • Modifications:
    • Named
    • Biostratigraphic dating
  • Dominant lithology:
    • Sandstone
    • Shale
    • Limestone
  • AAPG geologic province:
    • Alaska Northern region
Publication:

Bowsher, A.L., and Dutro, J.T., Jr., 1957, The Paleozoic section in the Shainin Lake area, central Brooks Range, Alaska, IN Exploration of Naval Petroleum Reserve No. 4 and adjacent areas, northern Alaska, 1944-53; Part 3, Areal geology: U.S. Geological Survey Professional Paper, 303-A, p. A1-A39, (incl. geologic map, scale 1:63,360) [Available online from the USGS PubsWarehouse: http://pubs.er.usgs.gov/pubs/pp/pp303A]


Summary:

Shown on preliminary geologic map of Shainin Lake area. Kayak shale and Kanayut conglomerate (new) comprise rocks previously referred to as Noatak formation (Smith and Mertie, 1930; and Payne and others, 1952). At type locality, composed of five unnamed units (ascending): sandstone 130 feet thick; lower black shale, 595 feet thick; argillaceous limestone 80 feet thick; upper black shale, 140 feet thick and red limestone 10-15 feet thick. Total thickness 960 feet (292 m). Disconformably underlies Wachsmuth limestone (new). Disconformably overlies Kanayut conglomerate (new). Age is Early Mississippian, based on coral-echinoderm-bryozoan-brachiopod faunas in upper part of formation. Three faunal zones are recognized: SCALRITUBA (Shiner and Shrock, 1944) restricted to basal sandstone; LEPTAENA ANALOGA (Cooper, 1944) in argillaceous limestone and upper black shale; and CYRPTOBLASTUS aff. C. PISUM (Cline, 1944) in red limestone.
Type section: exposures in saddle on south side of Mount Wachsmuth, 1.8 mi east of Shainin Lake area, Lat. 68 deg. 19 min. 19 sec. N., Long. 150 deg. 54 min. 29 sec. W., central Brooks Range AK. Named for Kayak Creek which joins Alapah Creek south of Shainin Lake.

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


Map showing publication footprint
  • Usage in publication:
    • Kayak Shale*
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Alaska Northern region
Publication:

Brosge, W.P., Dutro, J.T., Jr., Mangus, M.D., and Reiser, H.N., 1962, Paleozoic sequence in eastern Brooks Range, Alaska: American Association of Petroleum Geologists Bulletin, v. 46, no. 12, p. 2174-2198. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

Occurs beneath Lisburne Group throughout eastern and central Brooks Range. In type area and throughout central Brooks Range, disconformably overlies Kanayut Conglomerate. Disconformably underlies Wachsmuth Limestone. On the east, overlies Kanayut Conglomerate in southeastern part of range and Neruokpuk Formation at Echooka River. East of Canning River, a similar black shale unit along north front of range is questionably correlated with type Kayak Shale and designated Kayak(?) Shale. Kayak(?) overlies Kekiktuk Conglomerate and Neruokpuk Formation, and underlies Alapah Limestone. Kayak Shale is Early Mississippian age. Kayak(?) Shale is Early(?) and Late Mississippian age.

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


Map showing publication footprint
  • Usage in publication:
    • Kayak shale*
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Alaska Northern region
Publication:

Chapman, R.M., Detterman, R.L., and Marvin, D.M., 1964, Geology of the Killik-Etivluk Rivers region, Alaska, IN Exploration of Naval Petroleum Reserve No. 4 and adjacent areas, northern Alaska, 1944-53; Part 3, Areal geology: U.S. Geological Survey Professional Paper, 303-F, p. F325-F407, (incl. geologic map, scale 1:125,000)


Summary:

Occurs in Killik-Etivluk region at Howard Pass, Killik Valley and Otuk Creek, western Brooks Range, AK. Underlies Wachsmuth limestone. Overlies Kanayut conglomerate. Age is Early Mississippian.

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


Map showing publication footprint
  • Usage in publication:
    • Kayak Shale*
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Alaska Northern region
Publication:

Tailleur, I.L., Brosge, W.P., and Reiser, H.N., 1967, Palinspastic analysis of Devonian rocks in northwestern Alaska, IN Oswald, D.H., ed., International symposium on the Devonian System [proceedings]: Alberta Society of Petroleum Geologists, Calgary, Alberta, 1967, v. 2, p. 1345-1361.


Summary:

Assigned to Endicott Group (new) as uppermost of five formations. Composed of dark colored shale with a quartz sandstone interval at base and limestone and shale intervals at top. Thickness generally less than 300 m. Overlies Kanayut Conglomerate (Endicott Group) in central Brooks Range and locally overlies Noatak Sandstone (Endicott Group) in Baird Mountains of western Brooks Range. Underlies Mississippian carbonate rocks of Lisburne Group. Kayak(?) Shale of northeastern Brooks range is like type Kayak Shale in thickness, lithology, and stratigraphic position, but is generally younger. Kayak Shale is Early Mississippian age. Kayak(?) Shale is Early(?) and Late Mississippian. "Shales characteristic of Kayak Shale transgress Lower and Upper Mississippian Series".

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


Map showing publication footprint
  • Usage in publication:
    • Kayak Shale*
  • Modifications:
    • Biostratigraphic dating
  • AAPG geologic province:
    • Alaska Northern region
Publication:

Dutro, J.T., Jr., 1987, Revised megafossil biostratigraphic zonation for the Carboniferous of northern 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. 359-364., Prepared by SEPM Pacific Section and Alaska Geol. Soc


Summary:

Age is considered Early Mississippian in central Brooks Range based on revised megafossil zonations. Noted fossils are plants, brachiopods, bryozoans, echinoderms, goniatites, and trace fossils SCALARITUBA and SKOLITHOS. Assemblages range from Kinderhookian to Osagean in age as shown on correlation chart. Kayak(?) Shale is Meramecian to Chesterian.

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


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