IODP

doi:10.2204/iodp.sp.318.2008

Site summaries (continued)

Proposed Site WLRIS-02A
Priority:
Primary
Position:
64°1.09973′S, 139°48.28302′E
Water depth (m):
3705
Target drilling depth (mbsf):
1050
Approved maximum penetration (mbsf):
1050 (approved by TAMU safety panel based on EPSP Dec 2005 recommendation)
Survey coverage:
• Site survey data outlined in Proposal 482-Full3 (available at
iodp.tamu.edu/scienceops/expeditions/wilkes_land.html)
• Track map (Fig. AF3)
• Seismic profile (Fig. AF4), crossing seismic profile (Fig. AF5).
Objective
(see text for full details):
Timing and nature of onset of glaciation
Drilling, coring, and downhole measurement program:
• Hole A: APC/XCB to refusal (~500 mbsf); APC core orientation and formation temperature measurements
• Hole B: RCB to total depth; formation temperature measurements, wireline log (triple combo, FMS-sonic), and check shot
Anticipated lithology:
Fine-grained hemipelagites, turbidites, and contourites