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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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