Logging operations began at 0030 hr on 29 September. The first log was conducted with the seismic-stratigraphic suite (25.8 m long). This suite was made up of the NGT, LSS, DITE-SFR, and TLT sondes. This tool string was deployed in the pipe at 0110 hr and logged the hole from 603.2 mbsf. The tool was recovered at 0510 hr. The second log was with the lithoporosity suite (19.5 m long) and included the HNGS, APS, LDS, and TLT sondes. The tool was deployed at 0620 hr and logged the hole up from 600.7 mbsf. The tool was retrieved at 1020 hr. The third log was made with the FMS suite (12.10 m long) and included the NGT, GPIT, and FMS sondes. This tool was deployed at 1125 hr and logged the hole from 600.7 mbsf. The tool was recovered by 1400 hr. The fourth and last log was with the magnetic susceptibility suite (11.8 m long) and included the NGT, SUMT, and NRMT sondes. The tool was deployed in the pipe at 1425 hr and logged the hole from 600.7 mbsf. It was retrieved at 1715 hr on 29 September. The logging equipment was rigged down by 1800 hr. The drill string was then pulled out of the hole, with the bit clearing the seafloor at 1815 hr on 29 September, thereby ending operations at Hole 1085A.
The vessel was offset 30 m to the west, and Hole 1085B was spudded with the APC at 1915 hr. The recovery of the first core established the seafloor depth at 1724.6 m. APC coring advanced without incident to refusal at 321.2 mbsf (Cores 175-1085A-1H through 35H) with 101.7% recovery. The last two cores did not achieve full piston strokes due to the indurated sediments. Cores were oriented starting with 3H. The drill string was retrieved, and the bit cleared the seafloor at 1730 hr. After the beacon, hydrophones, and thrusters were retracted and the drilling equipment was secured, the vessel was under way to the next site at 2330 hr on 30 September.
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