APC Cores 1053A-1H through 15H were taken from 0 to 139.0 mbsf. APC Cores 1053A-3H to 15H were oriented using the Tensor tool. Core 15H did not achieve a full stroke, so we switched to XCB coring. XCB Cores 16X through 20X were taken to 183.2 mbsf, where coring was terminated. The bit was pulled out of the hole and cleared the seafloor at 1820 hr on 7 February.
Without offsetting the vessel, we spudded Hole 1053B with the APC at 1900 hr on 7 February. The mudline depth calculated from the recovery of the first APC core was 1641.8 mbrf. APC Cores 1053B-1H through 14H were taken from 0 to 127.4 mbsf after which we switched to XCB coring. Adara heat flow measurements were obtained at 22.9, 51.4, and 79.9 mbsf (Cores 3H, 6H, and 9H, respectively). XCB Core 1053B-15X through 20X were taken to 182.4 mbsf. The bit was pulled out of the hole and cleared the seafloor at 1220 hr. We retrieved the drill pipe and spent an extra 3 hr for the routine end-of-leg bottom-hole assembly inspection. At 1800 hr on 8 February, the drilling equipment was secured and we began the transit back to Site 1050 to core Hole 1050C.
To 171B Site 1050 (Proposed Site BN-2Alt)
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