Table T18. Summary of pressure coring operations, Site U1327.
| Core |
Core-top depth (mbsf) |
Length recovered* (cm) |
Length curated (cm) |
Pressure at core depth (MPa) |
Pressure recovered (MPa) |
Comments | |
|---|---|---|---|---|---|---|---|
| Logged† | Gauge‡ | ||||||
| 311-U1327C- | |||||||
| 6P | 44.1 | 47 | 47 | 13.5 | 0 | — | Burst disk failed |
| 15P | 121.8 | 98 | 96 | 14.3 | 7.3 | — | Normal operation |
| 24P | 197.3 | 98 | 100 | 15.1 | 6.8 | 2.0 | Normal operation |
| 311-U1327D- | |||||||
| 3P | 83.0 | 0 | 0 | 13.9 | 0 | — | No pressure |
| 4E | 125.3 | 110 | 110 | 14.3 | 12.1 | 12.0 | Broken catcher ring prevented transfer of core |
| 6Y | 132.0 | 84 | 84 | 14.4 | 0 | — | Liner imploded; corer over-retracted |
| 10P | 155.1 | 98 | 92 | 14.7 | 7.3 | 4.1 | Normal operation |
| 12E | 170.5 | 114 | 114 | 14.8 | 11.7 | 12.0 | Normal operation; logged in MSCL-P and stored in SC |
| 13Y | 203.6 | 48 | 48 | 15.1 | — | 2.0 | Data logger failed; no pressure/temperature data |
| 14E | 217.7 | 115 | 115 | 15.3 | 12.4 | 12.5 | Normal operation; logged in MSCL-P and stored in SC |
| 17P | 246.0 | 98 | 98 | 15.6 | 6.4 | 2.0 | Normal operation |
| 311-U1327E- | |||||||
| 2P | 40.0 | 90 | 90 | 13.5 | 0 | — | No core, no pressure |
| 3P | 80.0 | 98 | 95 | 13.9 | 5.5 | 0.7 | Normal operation |
| 4E | 128.0 | 48 | 48 | 14.4 | 0 | — | Side pressure seal broken |
Notes: Water depth at Site U1327 is 1303 mbsl. P = Pressure Core Sampler (PCS), Y = Fugro Percussion Corer (FPC), E = HYACE Rotary Corer (HRC). * = based on X-ray imaging and gamma ray density profiling prior to degassing. † = last pressure recorded before data logger disconnected from corer autoclave. Temperature 2°–4°C unless otherwise noted. ‡ = pressure measured when autoclave pressure transducer connected to computer (PCS cores) or external gauge (PCS, FPC, HRC cores). Pressure measured at 7°C unless otherwise noted. SC = HYACINTH storage chamber, MSCL-P = Geotek pressure multisensor core logger. — = no data.
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