AKA: none
Other ID: W-6-91-WP,Tunes_6
Status: Completed
Organization(s): Scottish Universities Research and Reactor Centre, Korea Institute of Geology, Mining, and Materials, Scripps Institution Of Oceanography, La Jolla, Ca, USGS, Pacific Coastal and Marine Science Center
Funding Program(s):
Principal Investigator(s): James Hein
Affiliate Investigator(s): Hubert Staudigel (SCRIPPS)
Information Specialist(s): James Hein
Data Type(s): Sampling: Geology, Sonar: Single Beam
Scientific Purpose/Goals: To study seamount ages and basalt chemistry in order to better understand the long term history of the South Pacific thermal anomaly.
Vehicle(s):
Start Port/Location:
End Port/Location:
Start Date: 1991-10-31
End Date: 1991-12-02
Equipment Used: dredge, bathymetry
Information to be 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.
Summary of Activity and Data Gathered: 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.
Staff: Michelle Greene, Malcolm Pringle, Susan Zielinski
Affiliate Staff:
Notes: 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
Location:
Northwest Pacific
| Boundaries | |||
|---|---|---|---|
| North: 47.75 | South: 10.25 | West: 115.25 | East: 180 |
Platform(s):
 Thomas Washington |
Hein, J.R., Zielinski, S.E., Staudigel, H., Chang, S.-W., Greene, M., and Pringle, M.S., 1997, Composition of Co-rich ferromanganese crust and substrate rocks from the NW Marshall Islands and International Waters to the North, Tunes 6 Cruise: U.S. Geological Survey Open-File Report 97-482, 65 p.
