172 Scientific Prospectus


Site: BBOR-3

Priority: 2
Position: 29°4.476'N, 72°53.899'W
Water Depth: 4250 m
Sediment Thickness: 1000 m
Approved Maximum Penetration: 350 m
Seismic Coverage: V2807 single channel seismic, KNR140 3.5kHz

Objectives: The objectives of BBOR-3 are to determine the:

1. History of circulation change in the deep western North Atlantic near the boundary between AABW and NADW

2.High-resolution history of paleomagnetic change

Drilling Program:
Triple APC/XCB to <350 m

Logging and Downhole: None anticipated

Nature of Rock Anticipated: Foraminifer-bearing silty clay and nannofossil marl

To Site BBOR-4B
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