Table T16. Datum tie points, Hole U1410A.
Datum tie point |
Datum | Datum type | Zone |
Age (Ma) |
Midpoint depth (mbsf) |
Distance (m) |
Duration (Ma) |
LSR (cm/k.y.) |
Notes |
---|---|---|---|---|---|---|---|---|---|
D01 | C1n (Brunhes)/C1r.1r (Matuyama) | Chron boundary | 0.78 | 11.50 | 11.50 | 0.78 | 1.47 | ||
D02 | C1r.3r/C2n (Olduvai) | Chron boundary | 1.78 | 17.13 | 5.63 | 1.00 | 0.56 | ||
D03 | T Discoaster pentaradiatus | Calcareous nannofossil | NN17 | 2.39 | 31.51 | 14.39 | 0.61 | 2.35 | |
D04 | T Discoaster hamatus | Calcareous nannofossil | NN10 | 9.53 | 36.04 | 4.52 | 7.14 | 0.06 | Condensed |
D05 | B Discoaster hamatus | Calcareous nannofossil | NN9 | 10.55 | 42.50 | 6.47 | 1.02 | 0.63 | |
D06 | Tc Sphenolithus belemnos | Calcareous nannofossil | NN4 | 17.95 | 45.23 | 2.73 | 7.40 | 0.04 | Condensed |
D07 | B Sphenolithus belemnos | Calcareous nannofossil | 19.03 | 48.23 | 3.00 | 1.08 | 0.28 | ||
D08 | B Discoaster druggii | Calcareous nannofossil | NN2 | 22.82 | 51.50 | 3.27 | 3.79 | 0.09 | Condensed |
D09 | T Sphenolithus ciperoensis | Calcareous nannofossil | NN1 | 24.43 | 51.50 | 0.00 | 1.61 | 0.00 | Hiatus |
D10 | T Sphenolithus distentus | Calcareous nannofossil | NP25 | 26.84 | 57.88 | 6.38 | 2.41 | 0.26 | Average rate = 0.17 cm/k.y. |
D11 | T Reticulofenestra umbilicus (>14 μm) | Calcareous nannofossil | NP23 | 32.02 | 64.21 | 6.34 | 5.18 | 0.12 | |
D12 | Inferred hiatus | 39.40 | 64.21 | 0.00 | 7.38 | 0.00 | Hiatus | ||
D13 | C19r/C20n | Chron boundary | 42.30 | 121.55 | 57.34 | 2.90 | 1.98 | ||
D14 | C20n/C20r | Chron boundary | 43.43 | 151.27 | 29.72 | 1.13 | 2.63 | ||
D15 | C20r/C21n | Chron boundary | 45.72 | 197.39 | 46.99 | 2.29 | 2.05 | ||
D16 | C21n/C21r | Chron boundary | 47.35 | 218.06 | 21.08 | 1.62 | 1.30 | ||
D17 | B Lamptonium fabaeforme constrictum | Radiolarian | RP9 | 50.05 | 239.65 | 20.31 | 2.70 | 0.75 | Average rate = 0.66 cm/k.y. |
D18 | B Coccolithus crassus* | Calcareous nannofossil | 51.64 | 250.62 | 10.97 | 1.59 | 0.69 | ||
D19 | B Buryella clinata | Radiolarian | RP7 | 53.35 | 258.70 | 8.08 | 1.71 | 0.47 |
* = From Agnini et. al. (2007) recalibrated to GTS2012. LSR = linear sedimentation rate. T = top, Tc = top common, B = base.
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