IODP

doi:10.2204/iodp.sp.316.2007

Site summaries (continued)

Proposed Site NT3-01C

Priority:
Alternate for proposed Site NT3-01B
Position:
33°18.650′N, 136°40.120′E
Water depth (m):
2046
Target drilling depth (mbsf):
1400
Approved maximum penetration (mbsf):
1400; approved by CDEX and TAMU safety panels based on EPSP Jan 2007 recommendation
Survey coverage:
CDEX 2006 3-D MCS; extensive survey data outlined in Proposal 603A-Full2 (www.iodp.org/nantroseize-downloads):
Objective
(see text for full details):
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
Drilling, coring, and downhole measurement program:
See NT3-01B
Anticipated lithology:
0–1039 mbsf: slope basin sediments; rapidly deposited sand/silts/clays
~420 mbsf: bottom-simulating reflector
1039–1400 mbsf: older accreted prism