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SITE SUMMARIES (continued)

Site: HR5a

Priority: Alternate

Position: 44.586096°N, 125.093815°W

Water Depth: 1035 m

Sediment Thickness: ~7 km

Target Drilling Depth: 260 mbsf

Approved Maximum Penetration: 260 mbsf

Seismic Coverage: TTN112 3-D high-resolution seismic survey

Objectives: To constrain the timing of formation of this anticline, the nature of the sediments that host an anomalously strong BSR beneath it, and the nature of reflection C in the uplifted basin to the west.

Drilling Program: APC to refusal, XCB to refusal. Use of PCS and/or HYACE.

Logging and Downhole Program: LWD, triple combo, APC-temperature, DVTP, APC methane tools.

Nature of Rock Anticipated: Interlayered silts and clays, some authigenic carbonates possible, highly deformed accretionary complex sediments.

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