Site |
Location
(latitude, longitude) |
Seafloor depth (mbsl) |
Operations description |
Duration (days) |
Task |
Transit |
Drilling/coring |
Logging |
Wellington, NZ |
Begin expedition |
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Transit from Wellington, NZ, to WLSHE-09B; ~1907 nmi @ 10.0 kt |
|
8.0
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WLSHE-09B |
66°22.03835′S
142°44.70833′E
|
525 |
Hole A: Seismic survey, APC to refusal (~50 mbsf) |
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0.9
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Hole B: Drilling with RCB center bit to 50 mbsf, RCB to 200 mbsf |
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1.4
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- Drop bit with MBR, wiper trip, displace hole with logging mud |
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- Log: triple combo and FMS-sonic (12.3 h) |
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- Log: VSP with WST, plug hole (4.1 h) |
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1.2
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3.5
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Transit to WLSHE-08A; 22 nmi @ 10.0 kt |
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0.1
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WLSHE-08A |
66°5.42394′S
143°18.7707′E
|
525 |
Hole A: APC to refusal (~50 mbsf) |
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0.9
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Hole B: Drilling with RCB center bit to 50 mbsf, RCB 50–220 mbsf |
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1.4
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- Drop bit with MBR, wiper trip, displace hole with logging mud |
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|
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- Log: triple combo and FMS-sonic (12.6 h) |
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- Log: VSP with WST, plug hole (4.4 h) |
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1.2
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3.5
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Transit to ADEL-01B; 150 nmi @ 10.0 kt |
|
0.6
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ADEL-01B
Adélie Drift |
66°24.8′S
140°25.5′E
|
1010 |
Hole A: APC core sediment to refusal ~200 m, XCB diamict ~2 m |
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|
1.4
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Hole B: APC core sediment to refusal ~200 m |
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|
0.9
|
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Hole C: APC core sediment to refusal ~200 m |
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0.9
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- Log: triple combo and FMS-sonic (13.0 h) |
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1.1
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4.3
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Transit to WLRIS-02A; 145 nmi @ 10.0 kt |
|
0.6
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WLRIS-02A |
64°1.09973′S
139°48.28302′E
|
3705 |
Hole A: APC/XCB to refusal ~500 mbsf, plug with cement |
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4.5
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Hole B: Drill with RCB center bit to 500 mbsf, RCB 500–1050 mbsf |
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8.4
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- Contingency FFF assumes interruption by iceberg (12 h) |
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0.5
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- Drop bit with MBR, displace hole with logging mud |
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|
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- Log: triple combo and FMS-sonic (28.2 h) |
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- Log: VSP with WST, plug hole (12.8 h) |
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2.8
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16.2
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Transit to WLRIS-04A; 121 nmi @ 10.0 kt |
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0.5
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WLRIS-04A |
64°54.23754′S
143°57.68046′E
|
3075 |
Hole A: APC/XCB to refusal ~500 mbsf, plug with cement |
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|
4.1 |
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Hole B: Drill with RCB center bit to 500 mbsf, RCB 500–1000 mbsf |
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|
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- Contingency FFF assumes interruption by iceberg (12 h) |
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0.5
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- Drop bit with MBR, displace hole with logging mud |
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6.5
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- Log: triple combo and FMS-sonic (27.3 h) |
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- Log: VSP with WST, plug hole (12.0 h) |
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2.4
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13.5
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Transit from WLRIS-04A to Wellington; 1997 nmi @ 10.0 kt |
|
8.2
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Wellington, NZ |
End expedition |
|
18.0
|
32.3
|
8.7
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41.0
|
|
|
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59.0
|
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Total expedition (including 5 port call days)
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64.0
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Note: APC = advanced piston corer, RCB = rotary core barrel, MBR = mechanical bit release, triple combo = triple combination, FMS = Formation MicroScanner, VSP = vertical seismic profile, WST = Well Seismic Tool, XCB = extended core barrel, FFF = free-fall funnel.