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Geologic Unit: Wailuku
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Map showing publication footprint
  • Usage in publication:
    • Wailuku volcanic series*
  • Modifications:
    • Named
  • Dominant lithology:
    • Basalt
  • 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 for town of Wailuku. Type locality is 3,500 ft elevation, southern wall of Iao Valley [20 deg 54' 36"N, 156 deg 29' 24"W, Wailuku 7.5' quad]. Exposed at surface of most of Western Maui and in deep canyons. Composed of olivine basalts. At type is thin-bedded pahoehoe and aa beds. In cliffs thin beds weather to dark gray, red, red violet, and brown. Individual flows range from 1 to 100 ft thick. Stratigraphic chart gives total thickness of these flows as 5,500+ ft. Base is not exposed. Separated from overlying Honolua volcanic series (new) by thin, red soil, locally tuffaceous. Map assigns probably Pliocene and early and middle Pleistocene age.

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


Map showing publication footprint
  • Usage in publication:
    • Wailuku volcanic series*
  • 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:

Assigned Pliocene(?) age based on degree of weathering and erosion.

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


Map showing publication footprint
  • Usage in publication:
    • Wailuku volcanic series*
  • Modifications:
    • Geochronologic dating
  • AAPG geologic province:
    • Maui
Publication:

McDougall, Ian, 1964, Potassium-argon ages from lavas of the Hawaiian Islands: Geological Society of America Bulletin, v. 75, no. 2, p. 107-128.


Summary:

K-Ar ages on olivine basalt from Wailuku volcanic series (N coast of W Maui) range from 1.32 to 1.27 Ma.

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


Map showing publication footprint
  • Usage in publication:
    • Wailuku Volcanic Series*
  • Modifications:
    • Geochronologic dating
  • AAPG geologic province:
    • Maui
Publication:

Naughton, J.J., Macdonald, G.A., and Greenberg, V.A., 1980, Some additional potassium-argon ages of Hawaiian rocks; the Maui volcanic complex of Molokai, Maui, Lanai and Kahoulawe, IN McBirney, A.R., ed., Gordon A. Macdonald memorial volume: Journal of Volcanology and Geothermal Research, v. 7, nos. 3-4, p. 339-355.


Summary:

K-Ar ages on tholeiite pahoehoe and aa from Wailuku Volcanic Series (on Olawalu Stream, Island of Maui) range from 1.97 +/-0.96 to 1.58 +/-0.39 Ma.

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


Map showing publication footprint
  • Usage in publication:
    • Wailuku Formation
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Maui
Publication:

Easton, R.M., and Easton, E.G., 1983, Geology of the Hawaiian Islands; Hawaii, Maui and Oahu; Trip 16, IN Preto, Vic, chairperson, Joint annual meeting of Geological Association of Canada, Mineralogical Association of Canada, and Canadian Geophysical Union; Volume 2, Trips 9 to 16: Geological Association of Canada, Victoria Section, Field Trip Guidebook, 91 p.


Summary:

Wailuku Volcanic Series of Stearns and Macdonald (1942) reduced in rank and renamed Wailuku Formation. "Following the usage of Macdonald (1978), most volcanic series have been renamed as formations." (p.2)

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


Map showing publication footprint
  • Usage in publication:
    • Wailuku Basalt*
  • Modifications:
    • Revised
  • 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:

Wailuku Volcanic Series of Stearns and Macdonald (1942) reduced in rank and renamed Wailuku Basalt, in accordance with 1983 Code of Stratigraphic Nomenclature, and to indicate lithology.

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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