Field Activity Details for field activity 1984-015-FA

Other ID: L9-84-CP

Status: Completed

Organization(s): USGS, Woods Hole Coastal and Marine Science Center

Funding Program(s):

Principal Investigator(s): William Schwab

Affiliate Investigator(s):

Information Specialist(s):

Data Type(s): Seismics: Air Gun / Water Gun, Sampling: Geology, Location-Elevation: Navigation, Imagery: Photo, Electro-Magnetic: Magnetics, Electro-Magnetic: Gravity

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 Port/Location: Majuro, Radak Chain, Marshall Islands

End Port/Location: Honolulu, HI

Start Date: 1984-07-28

End Date: 1984-08-16

Equipment Used: Dredge, Gravity meter (wh), Magnetometer (wh), 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: William Schwab, Tim Ling

Affiliate Staff:
USGS-Menlo Park: Kevin O'Toole - mechanical technician
Paul Wenberg - mechanical technician
James Vaughan - electronic technician
Rick Viall - electronic technician
Joe Stagg - Geologist
Alice Davis - geologist
Leda Beth Pickthorn - geologist
Joanne Thede - geologist
Chris Wilson - Chief Navigator/Data Curator
Robin Bouse - Navigator
Wendy Bohrson - Navigator
Kaye Kinoshita - watchstander; Bob Weldin - Geologist
Bureau of Mines; Robert Rowland - geologist
USGS-Reston; Henry Meyer - geologist
Purdue University; Janet Haggerty - geologist
University of Tulsa)

Notes: Original Center People field contained: Bill Schwab - Ch. Sci., Tim Ling - geologist.
Project = Marine Metallogenesis, Marine Metallogenesis


Marshall Islands to Hawaii, Horizon Guyot, Mid-Pacific Mountains, United States, North Pacific;

North: 19.37 South: 7.25 West: -193 East: -157


photo of Samuel Phillips Lee
Samuel Phillips Lee


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: 3, 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: 36, download PDF.


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Dredge --- Biology
Gravity meter (wh) --- Gravity
NGDC MGD77 data ( )
Magnetometer (wh) --- Magnetics
NGDC MGD77 data ( )
Corer - gravity --- Geology
Box corer --- Biology
Camera- deep sea --- Photo
Integrated Navigation System --- Navigation
Dead reckoning --- Navigation
Air gun --- Air Gun / Water Gun
Single channel hydrophone --- Air Gun / Water Gun
Bubble Gun
Sub Bottom Profiler
1984-015-FA-SE-001 ( microfilm of )

USGS Coastal and Marine Geology Program