Priority:
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Alternate for proposed Site NT3-01B
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Position:
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33°18.650′N, 136°40.120′E
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Water depth (m):
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2046
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Target drilling depth (mbsf):
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1400
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Approved maximum penetration (mbsf):
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1400; approved by CDEX and TAMU safety panels based on EPSP Jan 2007 recommendation
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Survey coverage:
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CDEX 2006 3-D MCS; extensive survey data outlined in Proposal 603A-Full2 (www.iodp.org/nantroseize-downloads):
- Track map (Fig. AF30)
- 3-D InLine 2700 (Figs. AF37, AF38)
- 3-D CrossLine 6190 (Fig. AF39)
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Objective
(see text for full details):
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Core and conduct downhole measurements throughout the entire forearc basin section and uppermost portion of the underlying prism
Determine splay fault history and nature of prism below basin sediments
Preparatory site for deep (~5.5–6.0 km) riser drilling
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Drilling, coring, and downhole measurement program:
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See NT3-01B
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Anticipated lithology:
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0–1039 mbsf: slope basin sediments; rapidly deposited sand/silts/clays
~420 mbsf: bottom-simulating reflector
1039–1400 mbsf: older accreted prism
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