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Priority:
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Alternate
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Position:
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40°10.00′N, 51°50.00′W
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Water depth (mbrf):
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4290
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Target drilling depth (mbsf):
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200, possibly 400
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Approved maximum penetration (mbsf):
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Request 500; pending EPSP approval
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Survey coverage:
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•Primary line: KNR 179-1, Line 7, SP 204 0840
•Crossing line: KNR 179-1, Line 16, SP 206 1605
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Objective:
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Middle of depth transect; lower to upper Eocene and possible Eocene/Oligocene boundary. The entire section of Eocene strata is ~200 m thick at this site, and the Eocene section is probably contaminated with younger sediments because the site sits in a basin; however, this site has ~250 m of Cretaceous–Paleogene strata under ~200 m burial. These strata crop out just north of JA-4 (where there is ~300 m of Cretaceous–Paleogene sediments), but we have no crossing line.
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Coring program:
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•Hole A: APC/XCB to 200 mbsf with orientation and APCT-3
•Hole B: APC/XCB to 200 mbsf
•Hole C: APC/XCB to 200 mbsf
•See “Drilling strategy” and Tables T1, T3
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Wireline logging program:
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•If deeper drilling, logging with triple combo and FMS-sonic
•See “Downhole measurements strategy” and Tables T1, T3
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Anticipated lithology:
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Carbonate ooze, hemipelagic clay, shallow-water carbonates
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