Table T8. Nannofossil events recognized, Site 1174.
|
Nannofossil
zones
|
Datum
events
|
Age
(Ma) |
Depth
(mbsf) |
Average
sedimentation rate*
(m/m.y.)
|
|---|---|---|---|---|
| NN21b | FAD Emiliania huxleyi acme | 0.085 | 59.25 ± 3.77 | 685.4 |
| NN21a | FAD Emiliania huxleyi | 0.26 | 166.90 ± 4.81 | |
| NN20 | LAD Pseudoemiliania lacunosa | 0.46 | 292.18 ± 5.29 | |
| LAD Reticulofenestra asanoi | 0.8 | 554.68 ± 1.96 | ||
| FAD Reticulofenestra asanoi | 1.06 | 596.14 ± 5.44 | ||
| FAD Gephyrocapsa oceanica | 1.77 | 641.50 ± 2.09 | 54.8 | |
| NN19 | LAD Discoaster brouweri | 1.95 | 652.47 ± 3.00 | |
| NN18 | LAD Discoaster pentaradiatus | 2.52 | 671.28 ± 0.33 | |
| NN17 | LAD Discoaster surculus | 2.55 | 676.08 ± 4.47 | |
| NN16 | LAD Reticulofenestra pseudoumbilicus (>7 µm) | 3.75 | 739.87 ± 6.20 | |
| NN15 | LAD Amaurolithus spp. | 4.0 | 763.35 ± 15.50 | |
| NN14 | FCAD Discoaster asymmetricus | 4.13 | 796.08 ± 0.73 | |
| NN12 | LAD Discoaster quinqueramus | 5.54 | 779.69 ± 1.50 | |
| NN11b | FAD Amaurolithus ssp. | 7.2 | 843.24 ± 1.57 | |
| NN11a | FAD Discoaster quinqueramus | 8.6 | 871.05 ± 7.57 | |
| NN10b | LAD Reticulofenestra pseudoumbilicus (>7 µm) | 8.8 | 890.41 ± 3.27 | |
| NN10a | LAD Discoaster hamatus | 9.63 | 898.96 ± 5.29 | |
| NN9 | FAD Discoaster hamatus | 10.7 | 918.52 ± 2.02 | |
| NN8 | FAD Catinaster coalitus | 10.9 | 954.14 ± 1.79 | |
| NN7 | FAD Discoaster kugleri | 11.8 | 1067.89 ± 9.27 | |
| LAD Orthorhabdus serratus | 12.3 | 1067.89 ± 8.27 | ||
| LCAD Cyclicargolithus floridanus | 13.2 | 1088.99 ± 4.99 | ||
| FAD Reticulofenestra pseudoumbilicus (>7 µm) | 13.4 | 1106.90 ± 4.40 |
Notes: FAD = first appearance datum, LAD = last appearance datum, FCAD = first common appearance datum, LCAD = last common occurrence datum. * = uncorrected for compaction.