Table T15. Datum events of radiolarians, diatoms, calcareous nannofossils, silicoflagellates, and paleomagnetics, Site U1342. (See table notes.)
| Datum event |
Taxon/ magnetics |
Age (Ma) |
Depth CSF (m) | Depth CCSF-A (m) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| U1342A | U1342B | U1342C | U1342D | U1342A | U1342B | U1342C | U1342D | |||
| LO Lychnocanoma nipponica sakaii | Radiolarian | 0.05 | 0.9 | 2.7 | 3.6 | 3.1 | 0.9 | 2.7 | 3.6 | 3.0 |
| LO Amphimelissa setosa | Radiolarian | 0.08–1 | — | — | 3.6 | — | — | — | 3.6 | — |
| LO Spongodiscus sp. | Radiolarian | 0.28–0.32 | 6.6 | 10.2 | 12.1 | 11.0 | 6.8 | 10.1 | 11.9 | 11.0 |
| LO Axoprunum acquilonium | Radiolarian | 0.25–0.43 | 16.2 | 19.8 | 12.1 | 20.5 | 16.8 | 20.0 | 11.9 | 21.2 |
| LO Proboscia curvirostris | Diatom | 0.3 | — | — | 21.8 | — | — | — | 22.0 | — |
| LO Pseudoemiliana lacunosa | Calcareous nannofossil | 0.44 | 16.2 | — | — | — | 16.8 | — | — | — |
| LO Dichtyocha subarctios | Silicoflagellate | 0.73–0.75 | 25.9 | — | — | 30.0 | 26.8 | — | — | 31.2 |
| Brunhes/Matuyama | Paleomagnetic | 0.781 | 24.9 | — | 25.1 | 24.8 | 26.4 | — | 26.2 | 26.1 |
| Kamikatsura Excursion | Paleomagnetic | 0.885 | 27.3 | — | 27.0 | 27.0 | 28.7 | — | 28.1 | 28.6 |
| LO Eucyrtidium matuyamai | Radiolarian | 0.9–1.5 | — | 29.3 | — | — | — | 30.3 | — | — |
| Santa Rosa Excursion | Paleomagnetic | 0.93 | — | — | 29.0 | 28.5 | — | — | 30.1 | 30.1 |
| Jaramillo top | Paleomagnetic | 0.998 | — | — | 30.7 | 30.3 | — | — | 31.8 | 31.9 |
| Jaramillo bottom | Paleomagnetic | 1.072 | 33.5 | — | 34.5 | 34.0 | 35.6 | — | 35.6 | 35.6 |
| Punaruu Excursion | Paleomagnetic | 1.125 | 35.8 | — | 36.3 | 36.3 | 37.9 | — | 38.3 | 38.6 |
| Cobb Mountain top | Paleomagnetic | 1.173 | 40.3 | — | 40.1 | 39.9 | 43.0 | — | 42.1 | 42.3 |
| Cobb Mountain bottom | Paleomagnetic | 1.185 | 41.5 | — | 40.9 | 40.6 | 44.3 | — | 42.9 | 43.0 |
Notes: For last occurrences (LO), the depth was estimated as the midpoint between the depth at which the species was last observed and the depth of the next sample above. — = not applicable.
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