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Map showing publication footprint
  • Usage in publication:
    • Pyramid Rock basalt
  • Modifications:
    • Named
  • Dominant lithology:
    • Basalt
  • AAPG geologic province:
    • Oahu
Publication:

Stearns, H.T., 1940, Supplement to the geology and ground-water resources of the Island of Oahu, Hawaii: Hawaii Division of Hydrography Bulletin, no. 5, 164 p.


Summary:

Named for Pyramid Rock, hill on Mokapu Peninsula, [Mokapu 7.5' quad] Island of Oahu. Formerly included in Hawaiiloa volcanics (Stearns, IN Stearns and Vaksvik, 1935). Included in lower part of Honolulu volcanic series. Composed of nepheline basalt with olivine. May have erupted simultaneously with Pali Kilo Lava.

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


Map showing publication footprint
  • Usage in publication:
    • Pyramid Rock basalt
  • Modifications:
    • 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:

Pyramid Rock basalt (Stearns, 1940) informally called Pyramid Rock lava of Honolulu series. Assigned middle(?) and late Pleistocene age on basis of relationship to Kahipa stand of sea.

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


Map showing publication footprint
  • Usage in publication:
    • Pyramid Rock 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:

Pyramid Rock Basalt (Stearns, 1940) abandoned as formally named unit and renamed Pyramid Rock flow, informal unit in 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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