Priority:
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Alternate for proposed Site NT2-03B
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Position:
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33°13.9075′N, 136°41.811′E
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Water depth (m):
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2145
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Target drilling depth (mbsf):
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1000 m sediment
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Approved maximum penetration (mbsf):
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1250; 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. AF23)
• 3-D InLine 2596 (Fig. AF28)
• 3-D CrossLine 5475 (Fig. AF29)
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Objective
(see text for full details):
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Sample forearc basin sediments and deformed prism
Preparatory site for 3.5 km deep Stage 2 riser site (Stage 2 will
characterize megasplay fault zone system by intersecting it at intermediate depth of 3.5 km)
Integration with proposed Sites NT2-01A and NT3-01 is essential.
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Drilling, coring, and downhole measurement program:
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See NT2-03B
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Anticipated lithology:
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0–210 mbsf: slope sediments
210–800 mbsf: accretionary prism (deformed, compacted
turbidites)
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