173 Scientific Prospectus

Site: Site 901

Priority: 1
Position: 40°40.48'N, 11°03.59'W
Water Depth: 4720 m
Sediment Thickness: 780 m (post + synrift)
Total Penetration: 830 m
Seismic Coverage: Lusigal Line 12 SP4938

1) Continue Site 901 to basement at east end of OCT to sample and date the prerift sediments.
2) Refine lithospheric extension rift model.
3) Determine early sedimentation and subsidence history, measure heat flow.

Drilling Program: Wash down and RCB to 100 m or to bit destruction.

Logging and Downhole Operations: Triple combo, and FMS.

Nature of Rock Anticipated: Nannofossil clay, silt, sandstone, shallow-water sandstones and carbonates; continental crust.

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