Table 2. Planktonic foraminifer datums used to construct age/depth plot.
Event
|
Zone
(base) |
Datum age
(Ma)* |
Depth
(mbsf) |
Tuned age (Ma)§
|
|
---|---|---|---|---|---|
1. | LO Globigerinoides obliquus | 1.3 | 44.05 | 1.30 | |
2. | FO Truncorotalia truncatulinoides | N22 |
2.0 | 68.77 | 1.92 |
3. | LO Menardella miocenica | 2.3 | 78.27 | 2.38 | |
4. | LO Menardella multicamerata | 3.0 | 97.27 | 3.10 | |
5. | LO Dentoglobigerna altispira | 3.0 | 97.27 | 3.11 | |
6. | FO Menardella miocenica | N21/N20 |
3.6 | 101.05 | 3.77 |
7. | LO Hirsutella margaritae | 3.6 | 110.55 | 3.85 | |
8. | FO Truncorotalia crassaformis | 4.7 | 139.07 | 4.31 | |
9. | FO Sphaeroidinella dehiscens | N19 |
5.6 | 160.55 | 5.54 |
10. | FO Globorotalia plesiotumida | N18/N17 |
8.2 | 237.54 | 8.58 |
11. | FO Neogloboquadrina acostaensis | N16 |
10.0 | 265.56 | 9.82 |
12. | LO Paragloborotalia mayeri | N15 |
10.3 | 269.11 | 10.49 |
13. | FO Globoturborotalita nepenthes | N14 |
11.4 | 295.15 | 11.19 |
14. | LO Fohsella fohsi | N13 |
11.8 | 298.61 | 11.68 |
15. | FO Fohsella fohsi | N12 |
13.5 | 307.25 | 13.42 |
16. | FO Fohsella praefohsi | N11 |
14.0 | 333.32 | - |
17. | FO Fohsella peripheroacuta | N10 |
14.7 | 345.75 | - |
18. | FO Praeorbulina sicana | N9/N8 |
16.4 | 416.25 | - |
19. | LO Catapsydrax dissimilis | N7 |
17.3 | 454.14 | - |
Notes: *Ages are from Curry, Shackleton, Richter, et al. (1995). §Ages are from Site 925, a section tuned by Bickert et al. (1997), Tiedemann and Franz (1997), and Shackleton and Crowhurst (1997).