Table T11. Recognized nannofossil events, Holes C0007C and C0007D. (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-C0007C- | 316-C0007C- | ||||||
NN19 | 0.436 | LO Pseudoemiliania lacunosa | 0.00 | 1H-CC, 7–12 | 20.62 | 10.31 | |
Reversed NN19 | 0.436 | LO Pseudoemiliania lacunosa | 14X-CC, 24 | 130.47 | 15X-CC, 0–9 | 138.14 | 134.30 |
316-C0007D- | 316-C0007D- | ||||||
Reversed NN19 | 0.436 | LO Pseudoemiliania lacunosa | 1R-CC, 0–5 | 175.03 | 1R-CC, 10 | 175.10 | 175.06 |
NN19 | 0.9 | LCO Reticulofenestra asanoi | 4R-1, 87 | 200.37 | 4R-CC, 0–5 | 200.47 | 200.42 |
1.04 | RE Gephyrocapsa spp. (≥4 µm) | 9R-CC, 0–5 | 249.46 | 10R-2, 60 | 258.52 | 253.99 | |
1.04 | RE Gephyrocapsa spp. (≥4 µm) | 15R-CC, 20–25 | 305.82 | 16R-CC, 0–5 | 316.04 | 310.93 | |
1.078 | FCO Reticulofenestra asanoi | 16R-CC, 0–5 | 316.04 | 17R-2, 118 | 323.68 | 319.86 | |
1.24 | LO Gephyrocapsa spp. large (>5.5 µm) | 17R-CC, 21–26 | 327.25 | 18R-CC, 0–5 | 337.19 | 332.22 | |
1.46 | FCO Gephyrocapsa spp. large (>5.5 µm) | 21R-1, 11 | 360.61 | 21R-1, 92 | 361.42 | 361.02 | |
NN16 | 2.06 | LO Discoaster brouweri | 21R-1, 92 | 361.42 | 21R-CC, 25 | 362.15 | 361.79 |
2.512 | LO Discoaster pentaradiatus | 21R-1, 92 | 361.42 | 21R-CC, 25 | 362.15 | 361.79 | |
2.52 | LO Discoaster surculus | 21R-1, 92 | 361.42 | 21R-CC, 25 | 362.15 | 361.79 | |
3.65 | LO Sphenolithus spp. | 21R-CC, 34–36 | 362.25 | 22R-1, 89 | 370.89 | 366.57 | |
NN15–NN14 | 3.79 | LO Reticulofenestra pseudoumbilicus (>7 µm) | 22R-CC, 9–14 | 376.17 | 23R-1, 112 | 380.62 | 378.40 |
4.13 | FCO Discoaster asymmetricus | 24R-1, 135 | 390.35 | 24R-CC, 0–5 | 395.23 | 392.79 | |
NN13 | 5.04 | LO Ceratolithus acutus | 26R-2, 15 | 409.42 | 26R-CC, 0–5 | 409.93 | 409.67 |
5.12 | FO Ceratolithus rugosus | 27R-1, 86 | 418.36 | 27R-CC, 0–5 | 418.72 | 418.54 | |
NN12 | 5.32 | FO Ceratolithus acutus | 29R-1, 16 | 436.66 | 29R-2, 22 | 438.13 | 437.39 |
Reversed NN16 | 3.65 | LO Sphenolithus spp. | 29R-2, 33 | 438.24 | 29R-2, 70 | 438.61 | 438.42 |
Notes: CSF = core depth below seafloor. LO = last occurrence, LCO = last consistent occurrence, RE = reentrance, FCO = first consistent occurrence, FO = first occurrence.
Previous | Close | Next | Top of page