Site summaries (continued)

Site BB-1B

Priority: Alternate
Position: 18°56.1064′N, 85°41.9823′E
Water depth (m): 1667
Target drilling depth (mbsf): 222
Approved maximum penetration (mbsf): 222
Survey coverage (track map; seismic profile): Lines L2200-2700-Tr3554-T0-2900 and L2403-Tr3200-3900-T0-2900 (site map Fig. F1C, seismic lines Fig. AF9, bathymetric map Fig F1D)
Objective(s): 1. High-resolution reconstruction of oceanic monsoonal paleoclimate and runoff from the Mahanadi drainage basins since the Pliocene, northern Bay of Bengal.
2. High-resolution reconstruction of oceanic circulation at intermediate depths in the Bay of Bengal since the Pleistocene.
Drilling program: Holes A, B, C: APC core to refusal/XCB core to 222 mbsf
Logging program and downhole measurements program: Hole A: APCT-3 temperature measurements and FlexIT orientation
Holes B, C: FlexIT orientation
Nature of rock anticipated: Biogenic clays and oozes, clays subordinate