Table 1.
Nitrogen Contents and δ15N, ODP Site 1256D
| Sample number* | N (ppm) | δ15Nair | Meters bsf |
|---|---|---|---|
| 1256D 14R-2 68-71 | 9.5 | −0.5 | 362 |
| 1256D 20R1 27-29 | 75 | −1.7 | 388 |
| 1256D 21R1 109-112 | 11.2 | 3.3 | 398 |
| WR 206-1256D 21R-1 124-130 | 6.4 | 0.1 | 398 |
| 1256D 21R-2 20-23 | 17.1 | 1.7 | 400 |
| 1256D 400 | 6.0 | −0.5 | 400 |
| WR 1256D 26R-1 42-50 | 12.1 | 1.4 | 439 |
| 1256D 30R-1 29-31 | 12.0 | 2.4 | 461 |
| 1256D 51R1 110-113 | 10.5 | 2.4 | 461 |
| 1256D 461 | 7.5 | 0.4 | 461 |
| WR 206 1256D 41R-2 26-33 | 11.1 | 1.7 | 526 |
| WR 206-1256D 47R-2 121-126 | 17.8 | 4.5 | 574 |
| 1256D 583 | 14.3 | 1.7 | 578 |
| WR 1256D 49-1 68-76 | 11.0 | 2.1 | 583 |
| WR 206-1256D 51R-1 45-51 | 13.2 | 0.2 | 597 |
| 1256D 598 1 | 4.5 | 0.5 | 598 |
| 1256D 598 2 | 15.1 | 0.2 | 598 |
| 1256D 51R-2 68-71 | 3.0 | 2.2 | 599 |
| 1256D 51R-2 38-40 | 17.5 | 2.3 | 599 |
| WR 206-1256D 52R-1 8-15 | 9.1 | 1.3 | 601 |
| 1256D 62R-1 5-8 | 3.8 | 2.8 | 687 |
*
Volcanic glass separates unless indicated as being “WR” (whole-rock samples).