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Sea-floor geology of a part of Mamala Bay, Hawaii

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Sea-floor geology of a part of Mamala Bay, Hawaii; 1997; Article; Journal; Pacific Science; Hampton, Monty A.; Torresan, Michael E.; Barber, John H., Jr.

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We surveyed the sea-floor geology within a 200-km2 area of Mamala Bay, off Honolulu, Hawaii by collecting and analyzing sidescan sonar images, 3.5-kHz profiles, video and still visual images, and box-core samples. The study area extends from 20-m water depth on the insular shelf to 600-m water depth in a southeast-trending trough. The sidescan images depict three principal types of sea-floor material: low-backscatter natural sediment, high-backscatter drowned carbonate reef, and intermediate-backscatter dredged-material deposits. Cores indicate that the natural sediment is muddy sand, composed of carbonate reef and microfauna debris with some volcanic grains. Vague areal trends in composition are evident. The dredged material comprises [...]

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Type Scheme Key
local-index unknown 70128984
local-pk unknown 70128984
series unknown Pacific Science

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citationTypeArticle
journalPacific Science
languageEnglish
parts
typevolume
value51
typeissue
value1

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