Position: 24°34.12'N; 79°13.64'W*
Water depth: 290 m
Sediment thickness: >8000 m
Total penetration: 1035 mbsf (approved to a depth of 1200 mbsf)
Seismic coverage: High-resolution MCS survey , industrial seismic line
Objectives: The objectives of BT-1 are to:
1. date precisely seismic sequence boundaries;
2. determine the facies within the different systems tracts, especially the nature of the onlapping units that are currently interpreted as lowstand deposits;
3. evaluate the fluid flow in this uppermost part of the slope; and
4. retrieve a high-resolution record of climate and sea-level fluctuations for the Quaternary and Late Pliocene.
Hole A and B: APC/XCB to refusal
Hole C: Wash to XCB depth and RCB to total depth; a third APC will be drilled if time permits.
Logging and downhole: ADARA heat flow measurements will be made on the first eight APC cores below Core 3 and one every third core thereafter. Three logging runs using the standard logging packages (Quad-Combination, GLT, and FMS) and a VSP experiment will be performed.
Nature of rock anticipated: Periplatform ooze occasionally mixed with coarser grained units.
*Operational safety considerations may require relocating this site to deeper water.
TO Site BT-4
166 Table of Contents