HONOLULU SERIES, OAHU, HAWAII

Abstract

Research Article| January 01, 1947 HONOLULU SERIES, OAHU, HAWAII HORACE WINCHELL HORACE WINCHELL YALE UNIVERSITY, NEW HAVEN, CONNECTICUT Search for other works by this author on: GSW Google Scholar Author and Article Information HORACE WINCHELL YALE UNIVERSITY, NEW HAVEN, CONNECTICUT Publisher: Geological Society of America Received: 08 May 1946 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1947, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1947) 58 (1): 1–48. https://doi.org/10.1130/0016-7606(1947)58[1:HSOH]2.0.CO;2 Article history Received: 08 May 1946 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation HORACE WINCHELL; HONOLULU SERIES, OAHU, HAWAII. GSA Bulletin 1947;; 58 (1): 1–48. doi: https://doi.org/10.1130/0016-7606(1947)58[1:HSOH]2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract The Honolulu series comprises about 30 distinct, separate eruptions of nepheline basanite, nepheline basalt, and nepheline-melilite basalt which occurred in late Pleistocene and Recent time in the southeastern part of the Koolau Range of Oahu. The unconformity between the Honolulu series and the underlying, internally conformable Koolau series which probably forms more than 99 per cent of the bulk of the Koolau Range represents a long erosion interval, since a relief of about 2000 feet was developed. The work of Stearns and Vaksvik (1935) covering all Oahu is the starting point for detailed descriptions of the areal and structural geology of the Honolulu series.Eight new analyses supplement the petrographic description of the rocks. No theory of differentiation yet advanced seems to account fully for the origin of these lavas. In particular, limestone syntexis is shown to be out of the question. Mineralizers are present and were present in larger quantity during the differentiation but are too imperfectly understood for an adequate discussion. Crystallization differentiation offers difficulties unless the rather improbable separation of hypersthene is postulated instead of olivine, from the primitive olivine basalt magma typical of Hawaii. There is no evidence for crystallization differentiation in place following extrusion, and none was found to indicate systematic variations in successive flow units from a given vent. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.

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