IODP

doi:10.2204/iodp.sp.318.2008

Site summaries (continued)

Proposed Site WLSHE-08A
Priority:
Primary
Position:
66°5.42394′S, 143°18.7707′E
Water depth (m):
525
Target drilling depth (mbsf):
220
Approved maximum penetration (mbsf):
270 (approved by TAMU safety panels 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. AF9)
• Seismic profile (Fig. AF10), crossing seismic profile (Fig. AF12)
Objective
(see text for full details):
Timing and nature of large changes in the glacial regime during the late Miocene–Pliocene
Drilling, coring, and downhole measurement program:
• Hole A: APC to refusal; APC core orientation and formation temperature measurements (see Table T1)
• Hole B: RCB to total depth; formation temperature measurements, wireline log (triple combo, FMS-sonic), and check shot
Anticipated lithology:
Diamicton and thin diatomaceous mud