Other ID: L9-84-CP
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Location: Marshall Islands to Hawaii, Horizon Guyot, Mid-Pacific Mountains, United States, North Pacific;
Principal Investigator(s): William Schwab
Data Type(s): Imagery: Photo, Location-Elevation: Navigation, Sampling: Geology, Seismics: Air Gun / Water Gun
Scientific Purpose/Goals: Study the distribution and composition of ferromanganese-oxide crusts in the Marshall Islands area and retrieve a current meter/sediment trap mooring deployed on Horizon Guyot, Mid-Pacific Mountains, in October 1983 on the USGS L5-83-HW cruise (FA 83012).
Start Date: 1984-07-28
Start Port/Location: Majuro, Radak Chain, Marshall Islands
End Date: 1984-08-16
End Port/Location: Honolulu, HI
Equipment Used: Dredge, Corer - gravity, Box corer, Camera- deep sea, Integrated Navigation System, Dead reckoning, Air gun, Single channel hydrophone
Information to be Derived: Sea floor map; Samples and chemical analysis;
Summary of Activity and Data Gathered: Seismic data (12 kHz and 3.5 kHz): 5410 km; Airgun (80 cu in and 148 cu in): 730 km; Dredge hauls: 13; Box cores: 2; Gravity cores: 8; Recovered current meter from Horizon Guyot.
Staff: Tim Ling, William Schwab
Notes: Original Center People field contained: Bill Schwab - Ch. Sci., Tim Ling - geologist.
Schwab, W.C., and Bailey, N.G., 1984, High-resolution seismic-reflection data collected on R/V S.P. LEE; L9-84-CP, Marshall Islands to Hawaii: U.S. Geological Survey Open-File Report 85-24, 3 p., download PDF.
Schwab, W.C., Hein, J.R., Davis, A.S., Morgenson, L.A., Daniel, C.L., and Haggerty, J.A., 1986, Geological and geochemical data for seamounts and associated ferromanganese crusts in the Ratak Chain, Marshall Islands: U.S. Geological Survey Open-File Report 86-338, 36 p., download PDF.