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Table T6. Summary of autonomous temperature logger deployment with Expedition 301 CORK systems.

Hole Data
logger
Position on sensor string Depth
(mbsf)
1026B O597 Bottom of middle OsmoSampler 205.5

A005 Bottom of deepest (3rd) OsmoSampler 210.5
U1301A A006 52 m down lower Spectra section 266

A003 57 m down lower Spectra section 270.8

O595 Bottom of top OsmoSampler 275.5

A001 Middle of second OsmoSampler 279.3

O596 Bottom of third OsmoSampler 283

A002 Bottom of deepest (4th) OsmoSampler 286.8
U1301B A010 270 m in upper Spectra section 266

O599 294 m in upper Spectra section 290

O600 318 m in upper Spectra section 314

O601 342 m in upper Spectra section 338

A011 365 m in upper Spectra section 361

A012 10 m in middle Spectra section 383

A014 30 m in middle Spectra section 402

A016 50 m in middle Spectra section 421

A017 70 m in middle Spectra section 440

A018 90 m in middle Spectra section 459

A020 15 m in lowest Spectra section 483.5

A009 Bottom of top OsmoSampler 510

A019 Bottom of 4th OsmoSampler 521.5

A007 Bottom of deepest (6th) OsmoSampler 528

Notes: A### = Antares 16-bit loggers, programmed for logger maximum of 65,000 samples at 1 h intervals, S/N 1857###C. O### = Onset 12-bit loggers, programmed for logger maximum of 43,000 samples at 1.5 h intervals. Strings in Holes 1026B and U1301A used two sections of Spectra rope, one between top seal plug and intermediate sinker bar, the other between intermediate sinker bar and bottom seal plug. A third section of Spectra was added in Hole U1301B, hanging below lower seal plug. Positions of top and bottom seal plugs are well determined relative to seafloor, but the slack built into the sensor strings (2 m in Holes 1026B and U1301A; 6 m in Hole U1301B) is assumed to be taken up evenly in Spectra between intermediate sinker bar and lower seal plug. Therefore, uncertainty in position below seafloor is greater for sensors in lower section of Spectra rope.

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