Table T3. Benthic foraminifers, Hole U1361A.
| Depth (mbsf) |
Age (Ma) |
DS1 (%) |
DS1 | DS2 (%) |
DS2 | DS3 (%) |
DS3 | Specimens (N) | Spp. (N) |
Weight (g) |
Specimens/ gram |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 313.23 | 11.00 | 50 | Epistominella exigua | 33 | Cibicidoides spp. | 17 | Melonis pompilioides | 6 | 3 | 15.97 | 0.38 |
| 313.43 | 11.00 | 48 | Epistominella exigua | 28 | Sphaeroidina sp. | 60 | 9 | 16.74 | 3.58 | ||
| 313.63 | 11.01 | 43 | Epistominella exigua | 29 | Cibicidoides spp. | 14 | Oridorsalis umbonatus | 7 | 4 | 17.25 | 0.41 |
| 313.83 | 11.01 | 12 | Lagena spp. | 9 | Cibicidoides spp. | 114 | 13 | 19 | 6.00 | ||
| 314.05 | 11.02 | 7 | Lagena spp. | 6 | Cibicidoides spp., Epistominella exigua | 165 | 16 | 18.53 | 8.90 | ||
| 319.89 | 11.16 | 15 | Nuttallides umbonifera | 12 | Oridorsalis umbonatus | 11 | Lagena spp. | 105 | 13 | 15.52 | 6.77 |
| 320.65 | 11.18 | 15 | Cibicidoides spp. | 13 | Nuttallides umbonifera, Pullenia bulloides, Fissurina sp. | 86 | 13 | 15.4 | 5.58 | ||
| 321.93 | 11.22 | 24 | Epistominella exigua | 19 | Cibicidoides spp. | 14 | Sphaeroidina sp., Melonis pompilioides | 21 | 8 | 15.08 | 1.39 |
| 322.85 | 11.24 | 100 | Epistominella exigua | 1 | 1 | 14.8 | 0.07 | ||||
| 323.62 | 11.26 | 0 | 0 | 15.32 | 0.00 | ||||||
| 324.55 | 11.28 | 18 | Melonis pompilioides, Fissurina sp. | 14 | Pullenia bulloides, Epistominella exigua | 21 | 10 | 14.41 | 1.46 | ||
| 325.35 | 11.30 | 39 | Cibicidoides spp. | 12 | Pullenia bulloides, Oridorsalis umbonatus | 98 | 16 | 16.66 | 5.88 | ||
| 325.63 | 11.31 | 0 | 0 | 14.83 | 0.00 | ||||||
| 327.04 | 11.34 | 0 | 0 | 15.55 | 0.00 | ||||||
| 327.88 | 11.36 | 20 | Pullenia bulloides | 19 | Oolina spp. | 13 | Lagena spp., Fissurina sp., Oridorsalis umbonatus | 16 | 8 | 17.58 | 0.91 |
| 328.89 | 11.39 | 0 | 0 | 17.71 | 0.00 | ||||||
| 329.58 | 11.41 | 0 | 0 | 18.72 | 0.00 | ||||||
| 336.05 | 11.57 | 29 | Oridorsalis umbonatus | 15 | Nuttallides umbonifera, Sphaeroidina sp. | 13 | Cibicidoides spp. | 192 | 17 | 15.67 | 12.25 |
| 336.9 | 11.59 | 0 | 0 | 16.86 | 0.00 | ||||||
| 337.75 | 11.61 | 29 | Epistominella exigua | 14 | Oridorsalis umbonatus, Gyroidinoides soldani, Fissurina sp. | 21 | 8 | 18.03 | 1.16 | ||
| 338.67 | 11.64 | 29 | Epistominella exigua, Melonis pompilioides | 14 | Fissurina sp. | 7 | 4 | 16.56 | 0.42 | ||
| 339.56 | 11.66 | 52 | Epistominella exigua | 24 | Melonis pompilioides | 14 | Pullenia bulloides | 21 | 4 | 19.86 | 1.06 |
| 340.55 | 11.68 | 55 | Epistominella exigua | 13 | Oridorsalis umbonatus | 91 | 13 | 14.23 | 6.39 | ||
| 341.35 | 11.70 | 25 | Oridorsalis umbonatus, Nuttallides umbonifera, Melonis pompilioides, Oolina sp. | 4 | 4 | 13.55 | 0.30 | ||||
| 342.25 | 11.73 | 52 | Epistominella exigua | 18 | Oridorsalis umbonatus | 10 | Fissurina sp. | 33 | 8 | 14.72 | 2.24 |
DS1, DS2, DS3 = benthic foraminifers categorized by the highest percentage of dominant species. E. exigua is highly abundant through the study interval. Abundance of Cibicidoides spp. increases toward upper half of the study interval.
Previous | Close | Next | Top of page