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Geologic Unit: Mokolea
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Map showing publication footprint
  • Usage in publication:
    • Mokolea basalt*
  • Modifications:
    • Named
  • Dominant lithology:
    • Basalt
  • AAPG geologic province:
    • Oahu
Publication:

Stearns, H.T., 1935, Geography and geology, [Island of Oahu, Hawaii], Part 1, IN Stearns, H.T., and Vaksvik, K.N., Geology and ground-water resources of the Island of Oahu, Hawaii: Hawaii Division of Hydrography Bulletin, no. 1, p. 3-198.


Summary:

Named for Mokolea Rock in Kailua Bay [Mokapu Point 7.5-min quadrangle] Island of Oahu. Included as unit in lower part of Honolulu volcanic series. Composed of nephelite-melilite basalt with olivine and pyroxene phenocrysts. Contains fossiliferous deposits indicating it is older than Waimanalo stand of sea. Tentatively assigned to Kaena stand of sea. Assigned middle(?) and late Pleistocene age.

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


Map showing publication footprint
  • Usage in publication:
    • Mokolea basalt*
  • Modifications:
    • Revised
    • Age modified
  • AAPG geologic province:
    • Oahu
Publication:

Winchell, Horace, 1947, Honolulu series, Oahu, Hawaii: Geological Society of America Bulletin, v. 58, no. 1, p. 1-48.


Summary:

Southern outcrop of Mokapu basalt (Stearns, IN Stearns and Vaksvik, 1935) is here considered part of Mokolea basalt due to lithological similarities and nearness of position across Kailua Bay. Tentatively assigned to Kahipa stand of sea.

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


Map showing publication footprint
  • Usage in publication:
    • Mokolea basalt*
  • Modifications:
    • Age modified
  • AAPG geologic province:
    • Oahu
Publication:

Macdonald, G.A., and Davis, D.A., 1956, Zone des Hawaii, Chapter 2, IN Avias, Jacques, and others, Oceanie proprement dite; Fasc. 2 of V. 6, Oceanie: Lexique Stratigraphique International, p. 70-143(?)., Prepared by the Centre National de la Recherche Scientifique (Paris), International Geological Congress, Commission on Stratigraphy


Summary:

Exposed only in Mokolea Rock, small stack about 1 mi E of Mokapu Peninsula and 10 mi NW of Makapuu Head and possibly in small outcrop on Makapu Peninsula (see Mokapu basalt). No fossils. Fossiliferous deposits were found in crevices in it about 25 ft above sea level indicating it is older than plus 25-ft (Waimanalo) stand of sea. Assigned Pleistocene age.

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


Map showing publication footprint
  • Usage in publication:
    • Mokolea Basalt†
  • Modifications:
    • Abandoned
  • AAPG geologic province:
    • Oahu
Publication:

Langenheim, V.A.M., and Clague, D.A., 1987, Stratigraphic framework of volcanic rocks of the Hawaiian Islands, Part II, IN The Hawaiian-Emperor volcanic chain, Chapter 1, OF Decker, R.W., Wright, T.L., and Stauffer, P.H., eds., Volcanism in Hawaii: U.S. Geological Survey Professional Paper, v. 1, 1350, p. 55-84. [http://ngmdb.usgs.gov/Prodesc/proddesc_42485.htm]


Summary:

Mokolea Basalt (Stearns, IN Stearns and Vaksvik, 1935) and Mokapu Basalt (in part) abandoned as formally named units and called Mokolea flow, informal unit of Honolulu Volcanics.

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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