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Table T16. Datum tie points, Hole U1408A.

Datum
tie point 		Datum Datum type Zone/Subzone Age
(Ma) 		Mid-point
depth
(mbsf) 		Distance
(m) 		Duration
(Ma) 		LSR
(cm/k.y.) 		Notes
D01 Ba Emiliania huxleyi Calcareous nannofossil NN21 0.29 1.50        
D02 T Discoaster hamatus Calcareous nannofossil Nn10 9.53 10.55 9.05 9.24 0.10 Average rate = 0.09 cm/k.y.
D03 B Catinaster calyculus Calcareous nannofossil   10.79 12.59 2.04 1.26 0.16
D04 B Sphenolithus distentus Calcareous nannofossil   30.00 28.06 15.48 19.21 0.08
D05 T Chiasmolithus grandis Calcareous nannofossil   37.98 28.81 0.00 7.98 0.00 Hiatus
D06 C17n.3n/C17r Chron boundary   38.33 29.39 1.33 0.35 0.38 Average rate = 1.39 cm/k.y.
D07 C17r/C18n.1n Chron boundary   38.62 30.63 1.24 0.28 0.44
D08 C18n.1n/C18n.1r Chron boundary   39.63 48.70 18.07 1.01 1.79
D09 C18n.2n/C18r Chron boundary   40.14 59.30 10.60 0.52 2.05
D10 C18r/C19n Chron boundary   41.15 73.77 14.47 1.01 1.43
D11 C19n/C19r Chron boundary   41.39 75.38 1.61 0.24 0.68
D12 C19r/C20n Chron boundary   42.30 101.21 25.84 0.91 2.83 Average rate = 3.03 cm/k.y.
D13 C20n/C20r Chron boundary   43.43 139.07 37.86 1.13 3.35
D14 C20r/C21n Chron boundary   45.72 212.60 74.16 2.29 3.24
D15 B Nannotetrina fulgens Calcareous nannofossil NP15a 46.29 223.96 10.73 0.57 1.89
D17 T Tribrachiatus orthostylus Calcareous nannofossil NP13 50.50 225.35 1.40 4.21 0.03 Hiatus
D18 T Toweius spp. Calcareous nannofossil NP12 50.78 225.35 0.00 0.28 0.00
D19 B Discoaster lodoensis Calcareous nannofossil   53.70 227.88 2.53 2.92 0.09 Condensed
D20 T Fasciculithus alanii Calcareous nannofossil   56.00 229.79 1.91 2.30 0.08
D21 B Discoaster multiradiatus Calcareous nannofossil NP9 57.21 245.23 15.44 1.21 1.27 Average rate = 1.27 cm/k.y.
D22 B Discoaster mohleri Calcareous nannofossil NP7 58.97 246.59 1.36 1.76 0.08 Condensed

LSR = linear sedimentation rate. T = top, B = base, Ba = base of acme.

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