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Geologic Unit: Sunrise
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Map showing publication footprint
  • Usage in publication:
    • Sunrise series*
  • Modifications:
    • Named
  • Dominant lithology:
    • Slate
    • Arkose
  • AAPG geologic province:
    • Alaska Southern region
Publication:

Mendenhall, W.C., 1900, A reconnaissance from Resurrection Bay to the Tanana River, Alaska, in 1898: U.S. Geological Survey Annual Report, 20, pt. 7, p. 265-340.


Summary:

Named for exposures near mining district of Turnagain Arm and vicinity of which Sunrise City is center, southern AK. Outcrops on western shores of Prince William Sound. May make up Kenai Mountains which occupy two-thirds of peninsula. Consists of metamorphic gold-bearing rocks of interbedded, fine blue-black slates and dark-gray arkoses. Intruded by series of dikes, chiefly aplitic in character. No fossils were found. Tentatively assigned late Paleozoic age.

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


Map showing publication footprint
  • Usage in publication:
    • "Sunrise series"†
  • Modifications:
    • Abandoned
    • Age modified
  • AAPG geologic province:
    • Alaska Southern region
Publication:

Moffit, F.H., 1954, Geology of the Prince William Sound region, Alaska, IN Mineral resources of Alaska, 1951-53: U.S. Geological Survey Bulletin, 989-E, p. E225-E310, (incl. geologic map, scale 1:250,000)


Summary:

"Sunrise series" of Mendenhall (1900) is at least westward or southwestward continuation of rocks recognized by later geologists as Valdez group. "Sunrise series" is not used as an additional stratigraphic name in this paper. [Thus "Sunrise series" is abandoned]. Fragment and imprints of INOCERAMUS collected from "Sunrise group" (Park, 1933, USGS Bull. 849, p.393-394) indicate age is Late Cretaceous.

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


Map showing publication footprint
  • Usage in publication:
    • Sunrise Group
  • Modifications:
    • Redescribed
  • AAPG geologic province:
    • Alaska Southern region
Publication:

Kirschner, C.E., and Lyon, C.A., 1973, Stratigraphic and tectonic development of Cook Inlet petroleum province, IN Pitcher, M.G., ed., Arctic geology; Proceedings of the second international symposium on Arctic geology: American Association of Petroleum Geologists Memoir, San Francisco, CA, Feb. 1-4, 1971, 19, p. 396-407. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

["Sunrise series"] of Moffit (1954) is redescribed as Sunrise Group. Described as thick turbidite suite now extensively exposed in geanticlinal welt of Kenai-Chugach Mountains. Age given as Cretaceous in correlation chart of Cook Inlet basin.

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


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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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