SITE SUMMARIES

Priority: 2 (alternate)
Position: 50°24'N, 167°34'E
Water Depth: 3200 m
Sediment Thickness: 750 m
Target Drilling Depth: >900 m
Approved Maximum Penetration: 1050 mbsf
Seismic Coverage: Roundabout 6 Aug 13 0030 UTC

Seismic line for Site HE-2

Objectives: The objectives of Site HE-2 are to:

1.Obtain a paleolatitude and age estimate for Detroit Seamount with enough independent time units (>15) to provide increased resolution in tests of the fixed-hotspot hypothesis

2. Determine the geochemical signature of the Detroit Seamount

3. Determine the nature of the time-averaged geomagnetic field

4. Determine the paleointensity of the geomagnetic field

5. Constrain downhole magnetic structure through borehole magnetic logging

Drilling Program: RCB

Logging and Downhole: Triple combo, FMS, third-party magnetic tool

Nature of Rock Anticipated: Diatom ooze and alkali and trachy basalt flows