172 Scientific Prospectus


Site: BBOR-6

Priority: 1
Position: 31°40.47'N, 75°25.13'W
Water Depth: 2975 m
Sediment Thickness: 1000 m
Approved Maximum Penetration: 350 m
Seismic Coverage: CH1292 line 16 SCS, Fay 19 minisparker and SCS, V2807 SCS, KNR 140 3.5kHz

Objectives: The objectives of BBOR-6 are to:

1.Determine the history of circulation change in the deep western North Atlantic in the core of Lower NADW.

2.Test hypotheses about current-controlled sedimentation and sediment rain rates (combined with BBOR-9)

3.High-resolution history of paleomagnetic change

Drilling Program:
BBOR-6 and -9 are companion sites. BBOR-6 will be triple cored with APC to 100 mbsf

Logging and Downhole: None anticipated

Nature of Rock Anticipated: Foraminifer-bearing silty clay and nannofossil marl, cores may be gassy

To Site BBOR-7A
172 Table of Contents
Publications Home
ODP Home