Site summaries (continued)

Proposed Site CRIS-4A

Priority: Primary
Position: 8.680827°N, 84.033615°W
Water depth (m): 170
Target drilling depth (mbsf): 1000
Approved maximum penetration (mbsf): 1050
Survey coverage: BGR 99-7 CMP 750
• Track map (Fig. AF1)
• Seismic profile (Fig. AF3)
• Location map (Fig. F2)
Objective: Characterize upper plate basement and fluid flow.
Drilling and logging program: • APC to refusal, then XCB to 500 mbsf.
• RCB from 490 to 1000 mbsf.
• Conduct wireline logging or LWD/LWC and VSI.
Nature of rock anticipated: Sediments: mud and silt, mud-supported breccia Basement: shaly matrix breccia with carbonate, cherty, and basaltic clasts