Site summaries (continued)

Site IND-03C

Priority: Primary
Position: 16º37.2858′N, 68º50.3376′E
Water depth (m): 3630
Target drilling depth (mbsf): 1570
Approved maximum penetration: Basement + 200 m
Survey coverage (track map; seismic profile): Bathymetric sketch and site track map (Fig. AF5) Deep-penetration seismic reflection:
• Primary line: W-06 (SP 11741) (Fig. AF6)
Objectives: • Reconstruct changes in weathering and erosion rates over tectonic timescales
• Ascertain the nature of basement rocks in the Laxmi Basin
• Constrain velocity variations with depth within sedimentary and basement layers
Drilling program: Hole A:
• APC to refusal with nonmagnetic core barrels, core orientation (FlexIT tool), and APCT-3
• Hole B: Jet-in test
Hole C:
• APC to refusal with nonmagnetic core barrels
• XCB to 600 mbsf
Hole D:
• Reentry system (20, 16, and 10¾ inch casing to ~600 mbsf)
• RCB core with nonmagnetic core barrels to 1570 mbsf (includes 100 m of basement)
Downhole logging program: Hole C:
• Triple combo
• FMS-sonic
Hole D:
• Triple combo
• FMS-sonic VSI
Nature of rock anticipated: Siltstone, sandstone, shale, basalt

Top of page   |    Previous   |    Next