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SITE SUMMARIES (continued)

Site: HR1c

Priority: Alternate

Position: 44.588421°N, 125.107920°W

Water Depth: 970 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 sample a negative polarity reflection beneath the BSR that was originally interpreted to be a "double BSR" of unknown origin but that appears in the 3-D data to be an unconformity related to high-amplitude reflections B and B', which are targeted by proposed Sites HR1a and HR1b.

Drilling Program: APC to refusal, XCB to refusal, RCB as necessary to reach target depth. Two holes. Possible 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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