Priority:
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Primary:
- Chikyu Expedition 314 (LWD)
Alternate:
- Other Stage 1 expeditions
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Position:
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32°44.8878′N, 136°55.0236′E
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Water Depth (m):
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3610
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Target drilling depth (mbsf):
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600 m sediment (Stage 1)
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Approved maximum penetration (mbsf):
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800; approved by CDEX and TAMU safety panels based on EPSP Jan 2007 recommendation
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Survey coverage:
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Extensive survey data outlined in Proposal 603A-Full2 (www.iodp.org/nantroseize-downloads):
- Track maps (Figs. AF1, AF4)
- Line odkm 03-AB SP 2795 (Fig. AF2)
- CrossLine odkm 03-22 SP 1685 (Fig. AF3)
- IFREE 3-D Inline 95 (Fig. AF5, AF6)
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Objective
(see text for full details):
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Reference site:
- Penetrate entire sedimentary section and into oceanic crust
- Document lithologic, hydrologic, thermal, and geotechnical properties of subduction inputs
- Log-seismic integration
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Drilling, coring, and downhole measurement program:
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Chikyu Expedition 314:
Hole A: MWD/LWD
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Anticipated lithology:
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0–600 mbsf: Shikoku Basin hemipelagic sediments
600–800 mbsf: volcaniclastic sediments and basalt
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