13C isotope values for wood, plant fragment, and humic extracts.
|
Core, section, interval (cm)
|
Depth (mbsf)
|
Carbon (wt%)
|
13C (  )
|
Description
|
Approximate age (Ma)
|
|---|---|---|---|---|---|
| 184-1143A- |
|
|
|
|
|
| 24H-CC, 27-28 | 230 | 51 | -30.6 | Lignite | 5.5 |
| 184-1144C- |
|
|
|
|
|
| 1H-5, 36-36 | 6 | 54 | -23.9 | Lignite | 0.01 |
| 184-1144B- |
|
|
|
|
|
| 24H-2, 35-36 | 235 | 48 | -28.3 | Plant fragments | 0.2 |
| 184-1145A- |
|
|
|
|
|
| 13H-4, 5-7 | 120 | 46 | -25.0 | Lignite | 1.2 |
| 13H-4, 5-7 | 120 | 32 | -25.2 | Humic extracts | 1.2 |
| 184-1146C- |
|
|
|
|
|
| 7H-2, 96-97 | 70 | 6 | -28.2 | Lignite | 0.4 |
| 7H-2, 96-97 | 70 | 14 | -28.5 | Lignite, leached | 0.4 |
| 7H-2, 96-97 | 70 | 7 | -29.2 | Humic extracts | 0.4 |
| 10H-3, 51-52 | 95 | 19 | -29.5 | Plant fragments | 0.5 |
| 10H-3, 51-52 | 95 | 26 | -29.5 | Humic extracts | 0.5 |
| 184-1148A- |
|
|
|
|
|
| 57X-1, 29-30 | 515 | 43 | -26.3 | Lignite | 27 |