Site summaries (continued)

Site U1380 (Proposed Site CRIS-10A)

Priority: Primary
Position: 8°35.99802′N, 84°4.4037′W
Water depth (m): 504
Target drilling depth (mbsf): 800 (550 m sediment, 250 m basement)
Approved maximum penetration (mbsf): 800
Survey coverage: Line BGR 99-7 CMP 2350
• Track map (Fig. AF1)
• Seismic profile (Fig. AF4)
• Location map (Fig. F6)
Objective: Characterize upper plate basement and fluid flow.
Drilling, coring, and downhole measurements program: • Hole B: jet-in test for reentry system.
• Hole C: reentry system (20 and 16 inch casing to 260 mbsf).
• Hole C: drill without recovery to 300 mbsf, RCB from 300 to 800 mbsf.
• Wireline logging (triple combo-UBI, FMS-sonic, VSI).
Nature of rock anticipated: Sediments: mud and silt, mud-supported breccia. Basement: shaly matrix breccia with carbonate, cherty, and basaltic clasts.