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Metadata
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ID
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K-2-94-HW
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Abstract
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United States Army Corps of Engineers. Chief Scientists:
Mike Torresan, Monty Hampton. Geophysical, geological data
(YoNav, GPS, 3dot5khz, 12khz, boxcore) of field activity
K-2-94-HW in Mamala Bay, Offshore Honolulu, Oahu, Hawaii,
United States of America from 05/16/1994 to 05/23/1994
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Organization
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United States Army Corps of Engineers
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Project/Theme
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South Oahu Deep Ocean Disposal Site Survey
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National Plan
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Environment
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Chief Scientist
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Mike Torresan
Monty Hampton
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Activity Type
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Geophysical, geological
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Platform
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Kila
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Area of Operation
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Mamala Bay, Offshore Honolulu, Oahu, Hawaii, United States of America
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Location map
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Bounding Coordinates
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21.31621
-158.00703 -157.86066
21.18314
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Dates
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05/16/1994 (JD 136) to 05/23/1994 (JD 143)
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Analog Materials
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list
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Index map
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Crew
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Mike Torresan
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Chief Scientist, USGS Western Region
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Monty Hampton
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Chief Scientist, USGS Western Region
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Equipment Used
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YoNav
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GPS
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3dot5khz
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12khz
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boxcore
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Purpose
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To sample and groundtruth the 1993 Acoustic data especally the sidedscan sonar
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mosaic of the seafloor of Mamala Bay over the US Corps of Engineers Deep Ocean
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dredged material Disposal Sites used by Pearl and Honolulu Harbors. Use box core
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samples to determine the chemical and physical effects and anthropogenic stresses
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placed on the seafloor and near-surface substrate of Mamala Bay, Honolulu, Oahu,
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Hawaii. The samples will be used to determine the toxicological and chemical
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effects of dredged material disposal on the ecosystem as well.
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Follow-up surveys addreessing the infauna will be conducted in 1995.
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Summary
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71 box core stations occupied in Mamala Bay, Honolulu, Oahu, Hawaii
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with 65 recoveries. Cores photographed and slab taken from cores also x-rayed
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for structure. Dredged material visible in many cores on and off the disposal
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sites. Subsamples collected for toxicological analyses and anthropogenic
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effects including: extractable heavy metals, organics, inorganics, pcb's,
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pesticides, mineralogy, grain size, total- organic- and carbonate carbon.
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Notes
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Publications
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Torresan, M.E., Hampton, M.A., Gowen, M.H., Barber, J.H., Jr., Zink, L.L., Chase, T.E.,
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Wong, F.L., Gann, J.T., and Dartnell, Peter, 1995, Final report; acoustic mapping of dredged
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material disposal sites and deposits in Mamala Bay, Honolulu, Hawaii: U.S. Geological Survey
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Open-File Report 95-0017, 53 p. , 1 sheet: http://geopubs.wr.usgs.gov/open-file/of95-17/
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Hampton, M.A., Torresan, M.E., Barber, J.H., Jr., Wong, F.L., Chezar, H., Gowen, M.H.,
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and Chase, T.E., 1995, Multimedia survey of the Mamala Bay sea floor, Hawaii: Geological
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Society of America Abstracts with Programs, v. 27, no. 6, p. 201.
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Got Help?
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For K-2-94-HW, we would appreciate any information on -- information to be derived, equipment used, information specialist, ports, publications, purpose, summary.
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