Site Summary PAT-23A | Table of Contents


Site: PAT-21
Seismic line
Bathymetry map

Priority: Alternate
Position: 10°12.277´N, 135°31.990´W
Water Depth: 4914 m (uncorrected)
Sediment Thickness: 226 m (0.281 s TWTT)
Target Drilling Depth: 226 m
Approved Maximum Penetration: 300 m
Seismic Coverage: EW9709 PAT-21 Survey

Objectives: The objectives of Site PAT-23A are to:

1.Determine the nature of sediments deposited near the late Eocene equator

2. Determine the paleolatitude of the drill site

3. Determine the rate of accumulation and types of biogenic sediments

4. Collect an Eocene/Oligocene boundary section above the CCD

Drilling Program: One APC/XCB to basement. If time is available, second and third APC to refusal, second and third XCB.

Logging and Downhole: Triple combo, MGT, and FMS-sonic if time is available.

Nature of Rock Anticipated: Soft sediments except perhaps some chert-chalk in basal layers. Basement is midocean ridge basalt.

Site Summary PAT-23A | Table of Contents