Table T6. Datums used to construct the age vs. depth plot for Hole 1068A.
| Datum | Datum type |
Sample containing datum | Next adjacent sample | Age (Ma) |
Median depth (mbsf) |
|||
|---|---|---|---|---|---|---|---|---|
|
Core,
section,
interval (cm) |
Depth
(mbsf) |
Core,
section,
interval (cm) |
Depth
(mbsf) |
|||||
| 173-1068A- | 173-1068A- | |||||||
| Fasciculithus tympaniformis | LO | 8R-6, 99-100 | 787.39 | 8R-6, 19-20 | 786.59 | 55.33 | 786.99 | |
| Discoaster multiradiatus | FO | 9R-6, 28-29 | 796.28 | 9R-6, 121-123 | 797.21 | 56.20 | 796.75 | |
| Discoaster nobilis | FO | 10R-3, 123-125 | 802.33 | 11R-1, 05-06 | 807.75 | 56.90 | 805.04 | |
| Heliolithus riedellii | FO | 11R-2, 08-09 | 809.28 | 11R-2, 44-45 | 809.64 | 57.30 | 809.46 | |
| Discoaster mohleri | FO | 11R-3, 15-17 | 810.85 | 11R-3, 36-37 | 811.06 | 57.50 | 810.96 | |
| Heliolithus
kleinpellii/ Sphenolithus anarrhopus |
FO | 11R-4, 35-36 | 812.55 | 11R-4, 120-122 | 813.40 | 58.40 | 812.98 | |
| Fasciculithus tympaniformis | FO | 11R-CC, 03-04 | 815.41 | 12R-5, 35-36 | 823.65 | 59.70 | 819.53 | |
| Ellipsolithus macellus | FO | 13R-2, 20-21 | 828.60 | 13R-2, 25-27 | 828.65 | 62.20 | 828.63 | |
| Cruciplacolithus primus | FO | 13R-5, 78-79 | 833.68 | 13R-5, 93-96 | 833.83 | 64.80 | 833.76 | |
| K/T boundary | 13R-6, 69-70 | 835.00 | 13R-6, 52-53 | 834.92 | 65.00 | 834.96 | ||
| Micula murus | FO | 15R-4, 10-11 | 850.40 | 15R-4, 12-13 | 850.41 | 68.50 | 850.41 | |
Notes: FO = first occurrence, LO = last occurrence. Ages for the nannofossil datums were obtained from Berggren et al. (1995).