Table T3. Multisensor core logger sensor summary, Expedition 313. (See table notes.)
| Sensor | Calibration pieces used |
Acceptable departure from full calibration values |
Sampling interval (cm) |
Spatial resolution (cm) |
|
|---|---|---|---|---|---|
| Full calibration | Calibration check | ||||
| Gamma density | Stepped Al/H2O (6, 5, 4, 3, 2, and 0 cm Al) | Distilled water | ±100 cps | 1 | 1 |
| P-wave velocity | Distilled water | Distilled water | ±1 µs | 1 | 1 |
| Noncontact resistivity | Saline fluids (35, 17.5, 8.75, 3.5, 1.75, and 0.35 g/L) | 3.5 g/L saline fluid | ±10 mV | 1 | ~2–3 cm |
| Magnetic susceptibility | Impregnated resin | Impregnated resin | ±5 SI | 1 |
~2–3 cm 80 cm loop ~3–5 cm 120 cm loop |
Notes: Sampling interval of 2 cm was selected per certain intervals. Spatial resolution given is that of the machine in the set-up used, not necessarily the maximum achievable resolution.
Previous | Close | Next | Top of page