Table T4. Calcareous nannofossil datum levels, Site 1171.
| Hole | Datum | Age (Ma) |
Interval (cm) | Depth (mbsf) | Mean (m) |
Error
bar (m) |
|||
|---|---|---|---|---|---|---|---|---|---|
|
Top
|
Bottom
|
Top
|
Bottom
|
||||||
| 1171A | |||||||||
| LO Pseudoemiliania lacunosa | 0.46 | 1H-CC | 2H-CC | 7.02 | 16.10 | 11.56 | 4.54 | ||
| LO Calcidiscus macintyrei | 1.67 | 2H-CC | 3H-CC | 16.10 | 24.76 | 20.43 | 4.33 | ||
| LO Reticulofenestra pseudoumbilica | 3.75 | 3H-CC | 4H-CC | 24.76 | 35.78 | 30.27 | 5.51 | ||
| LO Amaurolithus delicatus | 4.60 | 5H-CC | 6H-CC | 45.36 | 55.17 | 50.27 | 4.91 | ||
| LO Triquetrorhabdulus rugosus | 5.23 | 7H-CC | 8H-CC | 64.20 | 73.05 | 68.63 | 4.43 | ||
| 1171B | |||||||||
| LO Pseudoemiliania lacunosa | 0.46 | 1H-CC | 2H-CC | 4.21 | 13.79 | 9.00 | 4.79 | ||
| LO Calcidiscus macintyrei | 1.67 | 2H-CC | 3H-CC | 13.79 | 23.17 | 18.48 | 4.69 | ||
| LO Reticulofenestra pseudoumbilica | 3.75 | 5H-CC | 6H-CC | 42.03 | 52.04 | 47.04 | 5.01 | ||
| LO Amaurolithus delicatus | 4.60 | 5H-CC | 6H-CC | 42.03 | 52.04 | 47.04 | 5.01 | ||
| 1171C | |||||||||
| LO Pseudoemiliania lacunosa | 0.46 | Top of core | 1H-CC | 0.00 | 9.65 | 4.83 | 4.83 | ||
| LO Calcidiscus macintyrei | 1.67 | 2H-CC | 3H-CC | 19.24 | 28.53 | 23.89 | 4.65 | ||
| LO Reticulofenestra pseudoumbilica | 3.75 | 4H-CC | 5H-CC | 37.80 | 47.86 | 42.83 | 5.03 | ||
| LO Triquetrorhabdulus rugosus | 5.30 | 6H-CC | 7H-CC | 57.45 | 67.13 | 62.29 | 4.84 | ||
| LO Cyclicargolithus floridanus | 11.90 | 17X-CC | 18X-CC | 150.18 | 162.93 | 156.56 | 6.38 | ||
| FO Calcidiscus premacintyrei | 17.40 | 22X-CC | 23X-CC | 198.93 | 210.12 | 204.53 | 5.60 | ||
| LO Reticulofenestra bisecta | 23.90 | 28X-CC | 29X-CC | 253.79 | 264.83 | 259.31 | 5.52 | ||
| LO Chiasmolithus altus | 26.10 | 29X-CC | 30X-CC | 264.83 | 272.87 | 268.85 | 4.02 | ||
| 1171D | |||||||||
| LO Chiasmolithus altus | 26.10 | 1R-CC | 2R-CC | 250.27 | 260.90 | 255.59 | 0.10 | ||
| LO Reticulofenestra umbilica | 31.20 | 3R-3, 20 | 3R-CC | 269.78 | 271.34 | 270.56 | 5.30 | ||
| LO Isthmolithus recurvus | 32.80 | 3R-3, 20 | 3R-CC | 269.78 | 271.34 | 270.56 | 4.60 | ||
| LO Reticulofenestra oamaruensis | 33.70 | 3R-3, 20 | 3R-CC | 269.78 | 271.34 | 270.56 | 5.30 | ||
| FO Isthmolithus recurvus | 36.00 | 4R-CC | 5R-CC | 280.59 | 287.73 | 284.16 | 3.50 | ||
| LO Chiasmolithus solitus | 40.40 | 5R-CC | 7R-1, 25 | 287.53 | 300.65 | 294.09 | 6.60 | ||
| FO Reticulofenestra reticulata | 42.00 | 5R-CC | 7R-1, 25 | 287.53 | 300.65 | 294.09 | 6.60 | ||
| FO Reticulofenestra umbilica | 43.70 | 26R-CC | 27R-CC | 487.98 | 497.57 | 492.78 | 5.60 | ||
Notes: The mean depth of each datum is assigned at the midpoint between two samples. LO = last occurrence, FO = first occurrence.