Table T9. Recognized nannofossil events, Holes C0006E and C0006F. (See table notes.)
| Nannofossil zone |
Age (Ma) |
Nannofossil event | Top | Bottom | Mean depth CSF (m) |
||
|---|---|---|---|---|---|---|---|
| Core, section, interval (cm) |
Depth CSF (m) |
Core, section, interval (cm) |
Depth CSF (m) |
||||
| 316-C0006E- | 316-C0006E- | ||||||
| NN21 | 0.063 | X Gephyrocapsa spp. (>3.5 µm)—Emiliania huxleyi | 1H-1, 1 | 0.01 | 1H-CC, 0–5 | 5.16 | 2.59 |
| NN20 | 0.291 | FO Emiliania huxleyi | 2H-1, 34 | 5.19 | 2H-CC, 10–15 | 15.22 | 10.21 |
| NN19 | 0.436 | LO Pseudoemiliania lacunosa | 3H-2, 112 | 17.22 | 3H-4, 79 | 18.31 | 17.76 |
| 0.9 | LCO Reticulofenestra asanoi | 10H-CC, 0–5 | 64.54 | 11H-CC, 0–5 | 71.35 | 67.94 | |
| 1.078 | FO Reticulofenestra asanoi | 15X-CC, 0–5 | 85.52 | 16X-CC, 0–5 | 90.73 | 88.12 | |
| Reversed part of NN19 |
1.24 | LO Gephyrocapsa spp. large (>5.5 µm) | 19X-CC, 0–5 | 120.91 | 20X-4, 100 | 130.59 | 125.75 |
| 1.6 | LO Calcidiscus macintyrei (≥11 µm) | 20X-CC, 0–5 | 133.20 | 21X-5, 2 | 139.13 | 136.16 | |
| 1.617 | FO Gephyrocapsa spp. large (>5.5 µm) | 23X-CC, 15–20 | 162.41 | 24X-1, 96 | 164.29 | 163.35 | |
| 0.9 | LCO Reticulofenestra asanoi | 23X-CC, 15–20 | 162.41 | 24X-1, 96 | 164.29 | 163.35 | |
| 1.04 | RE Gephyrocapsa spp. (4 µm) | 24X-1, 96 | 164.29 | 24X-CC, 0–5 | 164.51 | 164.40 | |
| NN19 | 0.9 | LCO Reticulofenestra asanoi | 26X-3, 15–20 | 185.39 | 26X-CC, 32–37 | 192.45 | 188.92 |
| 1.04 | RE Gephyrocapsa spp. (4 µm) | 47X-CC, 4–9 | 391.40 | 48X-CC, 0–5 | 400.86 | 396.13 | |
| 316-C0006F- | 316-C0006F- | ||||||
| NN19 | 1.04 | RE Gephyrocapsa spp. (4 µm) | 1R-CC, 0–5 | 396.90 | 2R-1, 76 | 405.26 | 401.08 |
| 1.078 | FO Reticulofenestra asanoi | 5R-CC, 0–5 | 434.71 | 6R-2, 9 | 439.50 | 437.11 | |
| 1.24 | LO Gephyrocapsa spp. large (>5.5 µm) | 6R-2, 9 | 439.50 | 6R-CC, 0–5 | 439.73 | 439.61 | |
| 1.46 | FCO Gephyrocapsa spp. large (>5.5 µm) | 7R-CC, 0–5 | 449.70 | 8R-CC, 0–5 | 459.01 | 454.35 | |
| NN16 | 2.06 | LO Discoaster brouweri | 7R-CC, 0–5 | 449.70 | 8R-CC, 0–5 | 459.01 | 454.35 |
| 2.512 | LO Discoaster pentaradiatus | 7R-CC, 0–5 | 449.70 | 8R-CC, 0–5 | 459.01 | 454.35 | |
| 2.52 | LO Discoaster surculus | 7R-CC, 0–5 | 449.70 | 8R-CC, 0–5 | 459.01 | 454.35 | |
| 2.87 | LO Discoaster tamalis | 7R-CC, 0–5 | 449.70 | 8R-CC, 0–5 | 459.01 | 454.35 | |
| 3.65 | LO Sphenolithus spp. | 10R-1, 24 | 476.24 | 10R-1, 98 | 476.98 | 476.61 | |
| NN13–NN15 | 3.79 | LO Reticulofenestra pseudoumbilicus (>7 µm) | 11R-1, 38 | 485.88 | 11R-2, 65 | 487.67 | 486.78 |
| 5.12 | FO Ceratolithus rugosus | 13R-1, 91–92 | 505.42 | 13R-CC, 31 | 507.51 | 506.46 | |
| NN12 | 5.32 | FO Ceratolithus acutus | 21R-CC, 0–5 | 580.53 | 22R-2, 3–4 | 591.45 | 585.99 |
Notes: CSF = core depth below seafloor. X = crossover in abundance, FO = first occurrence, LO = last occurrence, LCO = last consistent occurrence, RE = reentrance, FCO = first consistent occurrence.
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