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Priority:
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Primary (high)
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Position:
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41°41.95′N, 139°04.98′E (WGS 84)
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Water depth (m)
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1785
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Target drilling depth (mbsf):
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250
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Approved maximum penetration (mbsf):
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250
[EPSP 2008] *Pending request for 300 to EPSP |
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Previous drilling in area:
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ODP Site 796 drilled ~170 km N
Piston core: GH96-1217 |
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Comments:
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Old site name: JS-4
Jurisdiction: Japan EEZ
Potential hazards: typhoon season (June to October) |
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Survey coverage
(track map, seismic profile):
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Bathymetric sketch and site track map (Fig. AF4)
High-resolution seismic reflection:
• Primary line(s): KR05-09, Line 7E13905 (SP444) (Fig. AF5)
• Crossing lines(s): KR05-09, Line 7N4142 (SP680) (Fig. AF6)
3.5 kHz: KR05-09: Line 7E13905, Line 7N4142 |
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Objectives
(see text for complete details):
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High-resolution reconstruction of dust flux, as well as other paleoceanographic records, in the southern part of the Japan Sea during the last 4 m.y.
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Drilling, coring, and downhole measurements program:
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Triple APC to 200 mbsf
Temperature measurements: APCT-3
Orientation on first hole: FlexIt |
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Downhole logging program:
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Standard tools: triple combo, FMS-sonic
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Anticipated lithology:
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Diatomaceous clay to silt
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