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Distribution and Characteristics of Dikes in the Southeast Part of the Koolau Range, Oahu
|Title:||Distribution and Characteristics of Dikes in the Southeast Part of the Koolau Range, Oahu|
|Authors:||Bigelow, Gordon E.|
|Issue Date:||Oct 1969|
|Publisher:||University of Hawai'i Press|
|Citation:||Bigelow GE. 1969. Distribution and characteristics of dikes in the southeast part of the Koolau Range, Oahu. Pac Sci 23(4): 496-506.|
|Abstract:||Exposed dikes and sills trending southwest and roughly perpendicular
to the primary Koolau rift zone in the Waialae-Palolo area of Oahu are hypersthenebearing
tholeiitic rocks, intrusive equivalents of the Koolau Series basalt flows. No
Honolulu Series intrusives were located along a line joining Kaau Crater, Mauumae,
Kaimuki, and Diamond Head, a secondary rift of the Koolau volcano. Mineralogy of
the Koolau intrusives displays a striking chemical and morphological constancy.
Feldspar crystals in these rocks show antipathy to ore inclusions. Cumuloporphyritic
texture is strongly developed and may be related to flow patterns evident in groundmass
|Appears in Collections:||Pacific Science Volume 23, Number 4, 1969|
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