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Geologic Unit: Waiaaka
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Map showing publication footprint
  • Usage in publication:
    • Waiaaka basaltic andesite*
  • Modifications:
    • Named
  • Dominant lithology:
    • Andesite
  • AAPG geologic province:
    • Maui
Publication:

Stearns, H.T., and Macdonald, G.A., 1942, Geology and ground-water resources of the Island of Maui, Hawaii: Hawaii Division of Hydrography Bulletin, no. 7, 344 p., (incl. geologic map, scale 1:62,500)


Summary:

Named as member of Hana Volcanic Series for occurrence along Waiaaka Gulch. Best exposed in Hanawi Gulch, Nahiku area, eastern Maui, HI. Composed of single flow (called "shaly lava" by local workers) of aa and some pahoehoe of calcic andesine; rock is basaltic andesite. Is as thick as 120 ft in test hole 47, but averages 30 ft. Overlies baked red soil over Makapipi basalt (new); where Makapipi basalt has been removed by erosion, overlies gravel above Kula basaltic andesite [volcanic series] (new). Locally underlies baked red soil under Mossman basalt (new) of Hana volcanic series. Map shows middle(?) and late Pleistocene and Recent age.

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


Map showing publication footprint
  • Usage in publication:
    • Waiaaka basaltic andesite*
  • Modifications:
    • Age modified
  • AAPG geologic province:
    • Maui
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:

Type locality: Waiaaka Gulch [20 deg 49' 40"N, 156 deg 06' 58"W, Nahiku 7.5' quad, Nahiku area, eastern Maui, HI.] Assigned Pleistocene(?) age. [no basis given]

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


Map showing publication footprint
  • Usage in publication:
    • Waiaaka Basaltic Andesite†
  • Modifications:
    • Abandoned
  • AAPG geologic province:
    • Maui
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:

Waiaaka Basaltic Andesite of Stearns and Macdonald (1942) abandoned as formally named unit and called Waiaaka flow, informal unit of Hana Volcanics. Hana Volcanics assigned Pleistocene(?) and Holocene age.

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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