Table T7. Selected radiolarian datums, Site 1172.
| Bioevent | Age (Ma) |
Sample | Depth (mbsf) | Mean (mbsf) |
Error (m) |
|||
|---|---|---|---|---|---|---|---|---|
|
Top
|
Bottom
|
Top
|
Bottom
|
|||||
| Hole 1172A | ||||||||
| LO Stylatractus universus | 0.45 | 1H-CC | 2H-CC | 6.24 | 16.15 | 11.195 | 9.91 | |
| LAO Cyrtocapsella tetrapera | 12.50 | 26X-CC | 27X-CC | 235.84 | 246.86 | 241.350 | 11.02 | |
| LO Lychnocanoma amphitrite | 32.80 | 39X-CC | 40X-CC | 364.34 | 374.00 | 369.170 | 9.66 | |
| FO Eucyrtidium antiquum | 32.96 | 40X-CC | 41X-CC | 374.00 | 383.60 | 378.800 | 9.60 | |
| FO Eucyrtidium spinosum | 37.00 | 41X-CC | 42X-CC | 383.60 | 393.18 | 388.390 | 9.58 | |
| LO Spongatractus pachystylus | 37.30-38.80 | 48X-CC | 49X-CC | 450.85 | 460.45 | 455.650 | 9.60 | |
| Hole 1172B | ||||||||
| LO Stylatractus universus | 0.45 | 1H-CC | 2H-CC | 2.79 | 12.73 | 7.760 | 9.94 | |
Notes: No datum at Hole 1172C. LO = last occurrence, LAO = last abundant occurrence, FO = first occurrence.