Priority:
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1
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Position:
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30.19°N, 42.06°W
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Water depth (m):
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2580
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Sediment thickness (m):
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12
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Target drilling depth (mbsf):
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>400 through detachment fault
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Approved maximum penetration (mbsf):
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700
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Survey coverage:
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Multichannel seismic data collected by the Ewing (EW-0102) in 2001 using a 10-gun array with 3100 in3 (51 L) capacity.
Shot spacing = 37.5 m.
The 6 km streamer had 480 channels, and data were sampled every 4 ms.
(See Fig. F6)
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Objectives:
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Core through basalt carapace overlying detachment fault.
Continue through fault zone as deep as possible.
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Drilling program:
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Install hard rock reentry system to
Rotary core to
Advanced diamond core to
Open hole and install casing to
Core as deep as possible through detachment fault
See "Primary Site: Proposed Site AMHW-01A"
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Logging program:
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Three logging runs:
Triple combination tool string
Formation MicroScanner/Dipole Sonic Imager tool string
Ultrasonic Borehole Imager
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Nature of rock anticipated:
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Basalt, fault gouge, serpentinized peridotite, gabbro
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