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Priority:
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Alternate
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Position:
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18°33.384′N, 116°36.576′E
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Water depth (m):
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3294
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Target drilling depth (mbsf):
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110
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Approved maximum penetration (mbsf):
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110
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Survey coverage (track map; seismic profile):
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Bathymetric sketch and site track map (Fig. AF1)
Deep-penetration seismic reflection:
• Primary line: 08ec1602 (CDP6312) (Fig. AF8)
• Crossing line: 973SCSIO_01A (projected at SP7920) (Fig. AF9)
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Objectives:
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• Examine the lithological nature of the boundary uplift between extended continental crust and oceanic crust
• Measure magnetization, mineralization, and geochemical compositions of basement rocks
• Model early-phase opening to better understand the rift-to-drift transition
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Drilling program:
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Hole A:
• RCB with nonmagnetic core barrels to 110 mbsf
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Downhole logging program:
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None
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Nature of rock anticipated:
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(Calcareous) mudstone, siltstone, sandstone, basalt, gabbro, serpentinite
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