Table T22. Constrained tie points for depth-age relationship, Site U1425.
Selected ties for depth-age lines |
Event type |
Bioevents and epoch boundaries |
Depth CCSF-A(m) |
Depth range (±) |
Age (Ma) |
Age range (±) |
Sedimentation rate (m/m.y.) |
|---|---|---|---|---|---|---|---|
| Core top | 0.00 | 0.000 | |||||
| R | LO Lychnocanoma sakaii | 4.39 | 4.39 | 0.050 | 0.000 | 40.9 | |
| CN | FO Emiliania huxleyi | 8.78 | 2.67 | 0.290 | 0.000 | ||
| R | LO Spongodiscus sp. | 13.96 | 5.19 | 0.290 | 0.000 | ||
| CN | LO Pseudoemiliania lacunosa | 21.40 | 0.44 | 0.440 | 0.000 | ||
| PF | LO Neogloboquadrina kagaensis | 34.15 | 5.53 | 0.700 | 0.000 | ||
| PM | Bottom of C1n (Brunhes/Matuyama) | 36.54 | 0.73 | 0.781 | 0.000 | ||
| PM | Top of C1r.1n (Jaramillo) | 41.59 | 0.02 | 0.988 | 0.000 | ||
| PM | Bottom of C1r.1n (Jaramillo) | 43.69 | 0.12 | 1.072 | 0.000 | ||
| PF | Neogloboquadrina pachyderma (S to D) | 44.53 | 4.85 | 1.190 | 0.050 | ||
| T | Om-SK110 | 47.10 | 0.01 | 1.600 | 0.000 | ||
| Unit IA/IB | 50.94 | 1.244 | |||||
| R | LO Axoprunum acquilonium | 55.00 | 5.63 | 1.450 | 0.250 | 32.6 | |
| CN | LO Calcidiscus macintyrei | 59.38 | 1.25 | 1.600 | 0.000 | ||
| PM | Top of C2n (Olduvai) | 60.49 | 1.40 | 1.778 | 0.000 | ||
| PM | Bottom of C2n (Olduvai) | 74.35 | 0.53 | 1.945 | 0.000 | ||
| D | LO Neodenticula koizumii | 76.16 | 5.26 | 2.000 | 0.000 | ||
| R | LO Hexacontium parviakitaensis | 76.16 | 5.26 | 2.700 | 0.000 | ||
| R | FO Cycladophora davisiana | 86.59 | 5.18 | 2.700 | 0.000 | ||
| PM | Top of C2An.1n (Matuyama/Gauss) | 91.42 | 0.66 | 2.581 | 0.000 | ||
| D | LO Neodenticula kamtschatica | 95.41 | 3.63 | 2.700 | 0.000 | ||
| Unit IB/IIA | 99.09 | 2.722 | |||||
| PF | FO Globorotalia praeinflata | 110.57 | 0.97 | 3.300 | 0.000 | 25.7 | |
| D | FO Neodenticula koizumii | 110.57 | 0.97 | 3.650 | 0.250 | ||
| T | Znp-Ohta | 124.09 | 0.01 | 3.900 | 0.000 | ||
| PF | LO Globorotalia ikebei | 124.63 | 2.33 | 4.300 | 0.000 | ||
| PF | FO Globorotalia ikebei | 129.51 | 2.56 | 4.750 | 0.050 | ||
| R | FO Hexacontium parviakitaensis | 129.51 | 2.56 | 4.100 | 0.200 | ||
| R | LO Dictyophimus bullatus | 134.52 | 2.44 | 4.100 | 0.200 | ||
| Unit IIA/IIB | 137.02 | 4.200 | |||||
| R | FO Dictyophimus bullatus | 147.64 | 4.41 | 4.400 | 0.000 | 41.7 | |
| R | RI Siphocampe arachnea group | 157.41 | 5.36 | 4.710 | 0.000 | ||
| R | LO Lipmanella redondoensis | 157.41 | 5.36 | 5.060 | 0.000 | ||
| D | LO Thalassiosira jacksonii | 167.66 | 4.88 | 4.810 | 0.000 | ||
| Biostrat | 182.94 | 5.300 | |||||
| R | FO Larcopyle pylomaticus | 187.70 | 4.76 | 5.300 | 0.000 | 25.8 | |
| R | LO Lychnocanoma parallelipes | 198.04 | 5.58 | 6.100 | 0.000 | ||
| Biostrat | 203.61 | 6.100 | |||||
| R | RI Lithelius barbatus | 235.20 | 4.34 | 7.000 | 0.000 | 44.7 | |
| R | FO Axoprunum acquilonium | 235.20 | 4.34 | 7.000 | 0.000 | ||
| D | LO Thalassiosira schraderi | 248.91 | 4.38 | 7.670 | 0.000 | ||
| R | LO Cycladophora nakasekoi | 258.66 | 5.38 | 7.400 | 0.000 | ||
| R | FO Lychnocanoma parallelipes | 258.66 | 5.38 | 7.400 | 0.000 | ||
| Unit IIB/IIIA | 262.53 | 7.419 | |||||
| D | LO Denticulopsis katayamae | 323.13 | 2.29 | 8.700 | 0.000 | 44.7 | |
| R | LCO Lychnocanoma magnacornuta | 332.90 | 2.84 | 9.100 | 0.000 | ||
| D | LO Denticulopsis dimorpha | 349.58 | 2.81 | 9.300 | 0.000 | ||
| Unit IIIA/IIIB | 356.83 | 9.528 | |||||
| R | FO Lychnocanoma magnacornuta (flow-in) | 393.00 | 2.04 | 10.100 | 0.000 | 64.8 | |
| R | RD Cyrtocapsella tetrapera (flow-in) | 405.35 | 0.72 | 12.600 | 0.000 | ||
| Biostrat | 393.88 | 10.100 | |||||
| R | FO Cycladophora nakasekoi (flow-in at bottom) | 405.93 | 12.05 | 10.100 | 0.000 | ||
| R | LO Eucyrtidium inflatum (flow-in at bottom) | 405.93 | 12.05 | 11.800 | 0.000 |
R = radiolarian, PF = planktonic foraminifer, CN = calcareous nannofossil, D = diatom, PM = paleomagnetism, T = tephra, LCO = last common occurrence. LO = last occurrence, FO = first occurrence, RI = rapid increase, RD = rapid decrease. S to D = sinistral to dextral coiling.
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