SITE SUMMARIES (CONTINUED)

Site: 642

Proposed site:	642
Priority:	Primary
Position:	67°12.7'N, 2°55.8'E
Water depth (m):	1289
Target drilling depth (mbsf):	150
Approved maximum penetration (mbsf):	N/A
Survey coverage:	MCS BGR-1 and NH-1 for Site 642, Leg 104
Objectives:	• Document ability to recover bottom water temperature (BWT) histories from temperature depth profiles in marine sediments. • Reconstruct BWT histories at Site 642. • Directly isolate perturbations in subsurface temperature profiles resulting from variations in BWT histories.
Drilling program:	• Drill in reentry cone and casing to ~150 mbsf. • Set bridge plug. • Install thermistor string.
Logging program:	None
Nature of rock anticipated:	Muds, sandy mud, minor nannofossil and diatom ooze

Next Section | Table of Contents