SITE SUMMARIES

Priority: 1
Position: 32°14.14'N, 135°01.87'E
Water Depth: 4760 m
Sediment Thickness: 700 m
Target Drilling Depth: 700 m
Approved Maximum Penetration: 700 mbsf
Seismic Coverage: Fred Moore Line NT62-8, shotpoint (SP) 1116 (common depth point [CDP] 45); 1999 3-D sesimic survey, Line 105, SP 106

Objectives: The objectives of ENT-01A are to:

1. Drill to basement at a position seaward of the proto-décollement tip to provide baseline physical properties, fluid flow measurements, and stratigraphy

2. Determine the structural and hydrologic evolution of the décollement zone

3. Determine the fluid flow paths and chemical gradients

4. Determine the spatial distribution and temporal progression of deformation

Logging: Triple-combo, FMS-sonic, WST for velocity check-shot survey

Downhole Tools: APC core orientation, Adara and DVTP temperature, water sampling temperature probe (WSTP) water samples

Nature of Rock Anticipated: Interbedded hemipelagic mud/silty-sandy turbidites, tuff

Site ENT-02A