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U.S. Geological Survey
Open-File Report 03-441

DATA REPORT: Geology of Reef-Front Carbonate Sediment Deposits around Oahu, Hawaii

South coast vibracores sketches, descriptions, and photographs

Home > data > vibracores > sketches, descriptions & photographs > south coast > vibracores 41V1 and 42V1

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Vibracores 41V1 and 42V1, south coast

Vibracore 41V1
Vaguely-laminated succession of fine- to medium-grained, algal/coral/foraminiferal carbonate sand: light olive to yellowish gray (5Y6/1-8/1); vague bedding indicated by oriented shell fragments; moderate sorting; sand size clasts angular to rounded; composed mainly of a mix of calcareous algae (28.5-33.5%), coral fragments (23.0-29.5%) and foraminifera (22.0-27.5%); common carbonate rock fragments (1.5-6.0%) and Halimeda (6.0-7.5.0%).
Vibracore 42V1
Vaguely-laminated fine- to medium-grained, algal/coral/foraminiferal carbonate sand: light olive to yellowish gray (5Y6/1-8/1); vague bedding indicated by oriented shell fragments; moderate sorting; sand size clasts angular to rounded; composed mainly of a mix of calcareous algae (27.5%), coral fragments (29.0%) and foraminifera (20.0%); with common carbonate rock fragments (6.5%) and Halimeda (5.5%).

Labelled sketch of core showing bedding and other features
High detail photo of core

 
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http://geopubs.wr.usgs.gov/open-file/of03-441/data/vibracore/descriptions/socoast41n42V.html

For more information, please contact: Monty Hampton

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last modified 15 December 2003 (cad)

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