Site summaries (continued)

Proposed Site CRIS-9A

Priority: Primary
Position: 8°29.3274′N, 84°7.69308′W
Water depth (m): 2000
Target drilling depth (mbsf): 980 (780 m sediment, 200 m basement)
Approved maximum penetration (mbsf): 980
Survey coverage: Line BGR 99-7 CMP 4550
• Track map (Fig. AF1)
• Seismic profile (Fig. AF5)
• Location map (Fig. F6)
Objective: Penetration of décollement at shallow level, fluid flow regime, oceanic crust.
Drilling, coring, and downhole measurements program: • Hole A: APC/XCB to 500 mbsf.
• Hole B: drill without recovery to 490 mbsf, RCB from 490 to 980 mbsf.
• Formation temperature measurements (APCT-3/SET).
• FlexIt core orientation measurements.
• Wireline logging (triple combo-UBI, FMS-sonic, VSI).
Nature of rock anticipated: Sediments: mud and silt, mud-supported breccia, and basaltic flows.