Field Activity W691WP

Identifier W691WP
Alternate names W-6-91-WP,Tunes_6
Purpose To study seamount ages and basalt chemistry in order to better understand the long term history of the South Pacific thermal anomaly.
Description United States Geological Survey, Menlo Park, California,Scripps Institution of Oceanography,Korea Institute of Geology, Mining, and Materials, Taejon, Korea,Scottish Universities Research and Reactor Centre, Kilbride, UK. Chief Scientists: Jim Hein, Hubert Staudigel. Geological data (dredge, bathymetry) of field activity W-6-91-WP in Northwest Pacific from 10/31/1991 to 12/02/1991
Location Northwest Pacific
Summary physical data holdings 13 NW Pacific seamounts and guyots were dredged during the Tunes 6 cruise. A total of 35 dredges were attempted and 23 recovered Fe-Mn crust samples and substrate rock. One or two dredge hauls recovedred samples from most guyots, however, Vlinder and Batiza Guyots yielded five and four dredge haul recoveries, respectively. Minor additional bathymetric surveys were conducted during Tunes 6.
Info derived Sample descriptions, detailed chemical and mineralogical analyses of bulk Fe-Mn crusts and individual crust layers, and major oxide compositions and mineralogy for substrate rocks.
Comments Staff information imported from InfoBank Jim Hein (USGS Western Region) - Chief Scientist Susan Zielinski - USGS Western Region Hubert Staudigel (SCRIPPS) - Chief Scientist Se (Korea Institute of Geology, Mining, and Materials) - Won Chang Michelle Greene - USGS Western Region Malcolm Pringle - Scottish Universities Research and Reactor Centre
Platform
Thomas Washington
Length: 209 feet; Beam: 39.5 feet.
Itinerary
Start (port not specified) 1991-10-31
End (port not specified) 1991-12-02
Bounds
West 115.25
East 180
North 47.75
South 10.25
Activity Geological

Personnel

Organization
Korea Institute of Geology, Mining, and Materials
Taejon, Korea,
Organization
Scottish Universities Research and Reactor Centre
Kilbride, UK,
Organization
Scripps Institution Of Oceanography, La Jolla, Ca
La Jolla, CA
Organization
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
Principal investigators James R Hein
Crew members
Pringle, Malcolm
Scientist, Staff
Zielinski, Susan
Scientist, Staff
Greene, Michelle
Scientist, Staff
Information specialist(s)
James R Hein
Specialist, Information
Affiliate principal Hubert Staudigel (SCRIPPS)

Data types and categories

Data category: Sampling, Sonar
Data type: Geology, Single Beam

Equipment used

Equipment Usage description Data types Datasets
dredge Geology 31
bathymetry Single Beam (no data reported)

Datasets

Publications

Samples collected during this field activity