IODP

doi:10.2204/iodp.sp.317.2009

Site summaries (continued)

Proposed Site CB-05F
Priority:
Global alternate
Position:
44°44.4039´S, 172°35.8192´E
Water depth (m):
682
Target drilling depth (mbsf):
1320
Approved maximum penetration (mbsf):
Pending approval
Survey coverage:
EW00-01-14 (CDP 7810), no crossing line
• Track map (Fig. AF12)
• Seismic profile (Fig. AF17)
• Location map (Fig. F3)
Objective (see text for details):
Sample current-deposited sediments on the slope, particularly large sediment Drift D11 (late Miocene to early Pliocene)
Sample Marshall Paraconformity and top of Amuri Limestone (late Eocene to early Oligocene)
Drilling, coring, and downhole measurement program:
Hole A
• APC/XCB to refusal (APC core orientation)
• Wireline log (triple combo, FMS-sonic)
• VSP with VSI
Hole B
• Drill without coring to APC refusal depths
• RCB coring to 1320 mbsf
• Wireline log (triple combo, FMS-sonic)
• VSP with VSI
Anticipated lithology:
0–1199 mbsf: Terrigenous siltstone and silty mudstone with intervals of fine-grained sand and mud
1199 mbsf (or slightly shallower)–1320 mbsf: Limestone