Priority:
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Alternate for CB-04B
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Position:
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44°56.0933´S, 172°01.1532´E
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Water depth (m):
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340
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Target drilling depth (mbsf):
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1270
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Approved maximum penetration (mbsf):
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1270
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Survey coverage:
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EW00-01-60 (CDP 2072), EW00-01-19a (CDP 3147)
• Track map (Fig. AF1)
• Seismic profile (Fig. AF9)
• Location map (Fig. F3)
• Dip profile EW00-01-60 (Fig. F9)
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Objective (see text for details):
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Sample slope facies of progradational sequence boundaries, particularly Unconformities U7–U9 (middle/late Miocene to early Pliocene), U11, and U13–U19 (Pliocene to Holocene)
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Drilling, coring, and downhole measurement program:
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Hole A
• APC/XCB to refusal (APC core orientation)
• Wireline log (triple combo, FMS-sonic)
• VSP with VSI
Hole B
• Drill without coring to APC refusal depth
• RCB coring to 1270 mbsf
• Wireline log (triple combo, FMS-sonic)
• VSP with VSI
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Anticipated lithology:
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0–1270 mbsf: Terrigenous siltstone and silty mudstone with intervals of fine-grained sand and mud
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