Table T9. Perfluorocarbon tracer and fluorescent microsphere concentrations, Site U1326.
|
Core, section, interval (cm) |
Depth (mbsf) |
Detected PFT (ng/g sediment) |
Detected particles (number/g sediment) |
Comments | ||
|---|---|---|---|---|---|---|
| Inner | Outer | Inner | Outer | |||
| APC cores | ||||||
| 311-U1326C- | ||||||
| 1H-2, 85–90 | 2.35 | ND | ND | >0.1 x 104 | 0.8 x 104 | Near mudline |
| 1H-3, 0–5 | 3.00 | BDL | 0.0013 | BDL | >0.1 x 104 |
|
| 4H-1, 5–6 | 22.95 | ND | ND | >0.1 x 104 | >0.1 x 104 | Sand layer |
| 4H-2, 0–5 | 24.40 | BDL | BDL | BDL | BDL |
|
| 4H-3, 110–111 | 24.00 | ND | ND | BDL | >0.1 x 104 | Sand layer |
| XCB cores | ||||||
| 311-U1326D- | ||||||
| 10X-3, 135–150 | 169.87 | ND | ND | BDL | >0.1 x 104 | Gas hydrate sample |
| 14X-1, 103–116 | 205.03 | ND | ND | >0.1 x 104 | >0.1 x 104 | Gas hydrate sample |
| 20X-5, 119–120 | 267.73 | ND | ND | BDL | 1.4 x 104 | Biscuit |
| 20X-5, 124–125 | 267.78 | ND | ND | >0.1 x 104 | >0.1 x 104 | Nonbiscuit |
Notes: PFT = perfluorocarbon tracers. APC = advanced piston corer, XCB = extended core barrel. ND = no data, BDL = below detection limit.
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