IODP

doi:10.2204/iodp.sp.342.2011

Site summaries (continued)

Site SENR-11A

Priority: Primary
Position: 41°37.00′N, 48°58.00′W
Water depth (m): 3300
Target drilling depth (mbsf): 300
Approved maximum penetration (mbsf): Request 600; pending EPSP approval
Survey coverage: •Primary line: KNR 179-1, Line 22, SP 208 0637
•Crossing line: KNR 179-1, Line 25, SP 210 0120
Objective: Upper middle of depth transect (entire section of Eocene strata is ~550 m thick at this site); early Eocene warm period; eocene hyperthermals; chemistry of Eocene deepwater. This is the shallowest highly expanded section of Eocene in the survey area, with excellent potential for very high sedimentation rates.
Coring program: •Hole A: APC/XCB to 300 mbsf with orientation and APCT-3
•Hole B: APC/XCB to 300 mbsf
•Hole C: APC/XCB to 300 mbsf
•See “Drilling strategy” and Tables T1, T2
Wireline logging program: •Hole C: Wireline logging with triple combo and FMS-sonic
•See “Downhole measurements strategy” and Tables T1, T2
Anticipated lithology: Carbonate ooze, hemipelagic clay, shallow-water carbonates