Table T4. Calcareous nannofossil datum levels, Site 1168.
Bioevent | Age (Ma) |
Interval (cm) | Depth (mbsf) | Mean (m) |
Error
bar (m) |
|||
---|---|---|---|---|---|---|---|---|
Top
|
Bottom
|
Top
|
Bottom
|
|||||
FO Emiliania huxleyi* | 0.26 | 1H-1, 55 | 1H-1, 72 | 0.55 | 0.72 | 0.64 | 0.09 | |
LO Pseudoemiliania lacunosa* | 0.46 | 1H-CC | 2H-CC | 3.86 | 12.85 | 8.36 | 4.50 | |
LO Calcidiscus macintyrei | 1.67 | 1H-CC | 2H-CC | 7.24 | 17.00 | 12.12 | 4.88 | |
LO Discoaster surculus | 2.55 | 2H-CC | 3H-CC | 17.00 | 26.71 | 21.86 | 4.86 | |
LO Reticulofenestra pseudoumbilica | 3.75 | 5H-CC | 6H-CC | 45.96 | 55.24 | 50.60 | 4.64 | |
LO Amaurolithus delicatus | 4.60 | 6H-CC | 7H-CC | 55.24 | 64.93 | 60.09 | 4.85 | |
LO Ceratolithus acutus | 5.05 | 7H-CC | 8H-CC | 64.93 | 73.84 | 69.39 | 4.46 | |
FO Ceratolithus acutus | 5.37 | 9H-CC | 10H-CC | 82.98 | 93.41 | 88.20 | 5.22 | |
FO Amaurolithus primus | 7.20 | 13X-CC | 14X-CC | 115.95 | 125.81 | 120.88 | 4.93 | |
LO Cyclicargolithus floridanus | 11.90 | 21X-CC | 22X-CC | 194.62 | 205.11 | 199.87 | 5.25 | |
LO Sphenolithus heteromorphus | 13.60 | 25X-CC | 26X-CC | 233.12 | 243.53 | 238.33 | 5.21 | |
FO Calcidiscus premacintyrei | 17.40 | 28X-CC | 29X-CC | 260.29 | 272.34 | 266.32 | 6.02 | |
FO Sphenolithus heteromorphus | 18.20 | 31X-CC | 32X-CC | 291.59 | 300.58 | 296.09 | 4.50 | |
LO Sphenolithus belemnos | 18.30 | 31X-CC | 32X-CC | 291.59 | 300.58 | 296.09 | 4.50 | |
FO Sphenolithus belemnos | 20.60 | 32X-CC | 33X-CC | 300.59 | 309.97 | 305.28 | 4.69 | |
LO Reticulofenestra bisecta | 23.90 | 46X-CC | 47X-CC | 435.10 | 444.22 | 439.66 | 4.56 | |
LO Chiasmolithus altus | 26.10 | 54X-CC | 55X-CC | 511.74 | 521.15 | 516.45 | 4.71 | |
LO Sphenolithus distentus | 27.50 | 69X-CC | 70X-CC | 654.94 | 661.50 | 658.22 | 3.28 | |
LO Reticulofenestra umbilica | 31.20 | 77X-CC | 78X-1, 38 | 733.41 | 733.79 | 733.60 | 0.19 | |
LO Isthmolithus recurvus | 32.30 | 78X-2, 10 | 78X-2, 144 | 735.01 | 736.47 | 735.74 | 0.73 | |
LO Discoaster saipanensis | 34.20 | 79X-CC | 80-2, 21 | 752.53 | 754.34 | 753.44 | 0.91 | |
FO Isthmolithus recurvus | 36.00 | 94X-3, 137 | 94X-CC | 878.00 | 878.14 | 878.07 | 0.07 |
Notes: * = samples are from Hole 1168B; all other samples are from Hole 1168A. FO = first occurrence, LO = last occurrence. CC = core catcher.