Table T5. Radiolarian datums, Site U1405.
| Core, section | Age | Zone | Marker species |
Age (Ma) |
Depth (mbsf) | ||||
|---|---|---|---|---|---|---|---|---|---|
| Top | Bottom | Top | Bottom | Mid-point | ± | ||||
| 342-U1405A- | 342-U1405A- | ||||||||
| Miocene | |||||||||
| 4H-CC | T Carpocanopsis cingulata | 17.16 | 35.29 | 35.29 | |||||
| 4H-CC | 6H-CC | RN4 | B Calocycletta costata | 17.59 | 35.29 | 54.14 | 44.72 | 9.42 | |
| 6H-CC | 10H-CC | B Dorcadospyris dentata | 18.22 | 54.14 | 92.19 | 73.17 | 19.03 | ||
| 6H-CC | 10H-CC | X Stichocorys delmontensis – Stichocorys wolffii | 18.64 | 54.14 | 92.19 | 73.17 | 19.03 | ||
| 6H-CC | 10H-CC | RN3 | T Dorcadospyris ateuchus | 18.64 | 54.14 | 92.19 | 73.17 | 19.03 | |
| 10H-CC | 12H-CC | RN2 | T Theocyrtis annosa | 20.05 | 92.19 | 110.82 | 101.51 | 9.31 | |
| 17H-CC | 19H-CC | B Calocycletta virginis | 21.82 | 158.48 | 177.05 | 167.77 | 9.29 | ||
| 17H-CC | 19H-CC | RN1 | B Cyrtocapsella tetrapera | 21.82 | 158.48 | 177.05 | 167.77 | 9.29 | |
| Miocene–Oligocene | |||||||||
| 22H-CC | 24H-CC | B Eucyrtidium diaphanes | 23 | 206.11 | 224.59 | 215.35 | 9.24 | ||
| 20H-CC | 22H-CC | T Dorcadospyris papilio | 23.59 | 186.61 | 206.11 | 196.36 | 9.75 | ||
| 24H-CC | RP22 | B Lychnocanoma elongata | 24.18 | 224.59 | 224.59 | ||||
B = base, T = top, X = faunal crossover (>50% descendent).
Previous | Close | Next | Top of page