IODP

doi:10.14379/iodp.sp.359.2014

Site summaries (continued)

Site MAL-02A

Priority: Primary
Position: 4.933156N, 73.027983E
Jurisdiction: Maldives
Water depth (m): 483
Target drilling depth (mbsf): 560
Approved maximum penetration (mbsf): 560
Survey coverage (track map; seismic profile): Location map (Fig. F19)
Primary line(s): Line 65 (Fig. F21)
Objective(s): 1. Provide detailed reconstruction of the predrowning, drowning, and postdrowning evolution of the carbonate bank by linking the seismic stratigraphic record to the sedimentary record
2. Constrain the timing of this evolution, allowing age assignments of unconformities, sedimentary interruptions, sedimentary turnovers, and onset of drift deposition
3. Reconstruct and date bank to drift turnover
Drilling program: Single APC hole to 200 mbsf and then XCB to 325 mbsf
Hole A: APCT-3 measurements and orientation
Hole B: drill to ~320 mbsf, RCB to 560 mbsf
Logging and downhole measurement program: Wireline log with triple combo and FMS-sonic
Nature of rock anticipated: Calcareous ooze, chalk, possibly limestone