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doi:10.2204/iodp.sp.308.2005

Table T4. Depth to critical surfaces at each Expedition 308 site.

Proposed site
Water depth
Drilled depth
Top hemipelagic depth
Bottom hemipelagic depth
(m)
TWT (ms)
(mbsf)
TWT (ms)
(mbsf)
TWT (ms)
(mbsf)
TWT (ms)
BT4-1B
1405
1.907

300
2.264

118
2.051

310
2.276
BT4-2A
1476
1.972

340
2.374

185
2.196

434
2.476
BT4-3A
1459
1.949

280
2.284

101
2.072

338
2.350
BT4-4A
1435
1.918

230
2.195

37
1.962

275
2.247


Top Blue

Base Blue
URS-1B
1057
1.419

612
2.122

632
2.168

722
2.264
URS-2C
1262
1.695

300
2.071

358
2.161

558
2.363
URS-3C
1321
1.773

240
2.079

238
2.101

483
2.359
URS-4A
1325
1.780

240
2.085

237
2.106

474
2.355

Note: TWT = two-way traveltime.

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