MATERIALS

Hole 1095B (66°59.1266´S, 78°29.2699´W; water depth = 3841.6 m) was drilled into the distal flank of an unnamed sediment drift. The section was drilled from ~80 to 570 meters below seafloor (mbsf) using the advanced hydraulic piston corer (APC) in the upper 13 cores and the extended core barrel (XCB) for the remainder (Fig. F3). Recovery was generally excellent (average = 79% for the entire hole), although there is a short interval from 214.7 to 233.9 mbsf (Cores 178-1095B-15X and 16X) where recovery was <50%, a gap due to zero recovery in Core 178-1095B-19X at 253.1-262.7 mbsf, and poor recovery in the basal cores of the hole (Cores 178-1095B-43X through 52X). Sediments are mostly diatomaceous silty clays with a complex layered structure caused by the varying influence of distal turbidite and hemipelagic sedimentation (Shipboard Scientific Party, 1999). Shipboard sampling was routinely carried out for radiolarian studies at ~2-4 samples per core. Weinheimer's shipboard study of this hole was based on core catcher samples, which, together with the shipboard age model (Shipboard Scientific Party, 1999), were used to select a subset of samples for detailed analysis from these previously taken samples. In all, 98 samples covering the time interval 4-10 Ma (Cores 178-1095B-5H to 52X) were processed into radiolarian slides (see "Appendix A").

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