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Priority:
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Alternate
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Position:
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27.318412°N, 134.341389°E
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Water depth (m):
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4730
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Target drilling depth (mbsf):
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1600
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Approved maximum penetration (mbsf):
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Pending EPSP approval.
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Survey coverage (track map; seismic profile):
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• Location map (Fig. AF1)
• Site track map (Fig. AF2)
• Multichannel seismic profiles (Fig. AF3)
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Objective(s):
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Recover hemipelagic sediment, volcanic ash, and volcaniclastic turbidite filling the basin and penetrate into oceanic basement to determine its petrological, geochemical, age, and magnetic characteristics.
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Drilling program:
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RCB to 150 m into basement; upper sedimentary section drilled without coring pending EPSP approval
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Logging program:
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Triple combo, FMS-sonic, VSI; potential third-party tool, such as UBI, MMM, or GBM (see “Logging/Downhole measurements strategy” for details)
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Nature of rock anticipated:
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Mixed hemipelagic and volcaniclastic sediments, then igneous basement
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