Table T6. Summary of biohorizons at Site 1144.
| Code | Events | Top | Bottom | Age (Ma) |
Average depth (mcd) |
Average sedimentation rate (m/m.y.) | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Core, section, interval (cm) | Depth | Core, section, interval (cm) | Depth | ||||||||
| (mbsf) | (mcd) | (mbsf) | (mcd) | ||||||||
| 184-1144A- | 184-1144A- | ||||||||||
| CN | FO E. huxleyi acme | 7H-CC, 31-37 | 64.30 | 69.56 | 8H-CC, 25-31 | 73.74 | 80.47 | 0.09 | 75.02 | ||
| PF | LO pink G. ruber | 10H-CC, 21-27 | 92.54 | 100.81 | 11H-CC, 10-16 | 102.30 | 110.63 | 0.12 | 101.72 | 930 | |
| CN | FO E. huxleyi* | 23H-CC, 14-20 | 216.38 | 235.70 | 24H-CC, 15-21 | 225.26 | 248.26 | 0.26 | 241.98 | 覧覧覧 | |
| PF | FO pink G. ruber | 24H-CC, 15-21 | 225.26 | 248.26 | 25H-CC, 21-27 | 235.39 | 261.30 | 0.40 | 254.78 | ||
| CN | LO P. lacunosa | 27X-CC, 35-41 | 250.78 | 278.07 | 28X-CC, 39-45 | 260.42 | 288.69 | 0.46 | 283.38 | 310 | |
| BF | LO Stilostomella | 34X-CC, 30-36 | 318.47 | 352.01 | 35X-CC, 25-31 | 328.00 | 365.54 | 0.75 | 358.78 | ||
| CN | LO R. asanoi* | 39X-CC, 31-37 | 366.56 | 411.31 | 40X-CC, 31-37 | 376.23 | 422.68 | 0.83 | 417.00 | 覧覧覧 | |
| CN | LO small Gephyrocapsa acme* | 46X-CC, 43-49 | 433.84 | 493.05 | 47X-CC, 24-30 | 443.19 | 505.32 | 1.01 | 499.19 | 460 | |
Notes: FO = first occurrence, LO = last occurrence. CN = calcareous nannofossils, PF = planktonic foraminifers, BF = benthic foraminifers, * = events used in calculating average sedimentation rate. Depth for the top and bottom of biostratigraphic events = the mean of the sample interval. Sources of reference age for all biostratigraphic events are listed in Tables T2 and T3, both in the "Explanatory Notes" chapter. Bars in average sedimentation rate column indicate the range of samples to which the average sedimentation rate applies. Depth in boldface indicates where the marker species was observed highest or lowest in the studied samples.