Previous   |    Close   |    Next

Table T18. Age-depth model datum tie points, Hole U1403A.

Datum
tie point 		Datum Datum type Zone/
Subzone 		Age
(Ma) 		Mid-point
depth
(mbsf) 		Distance
(m) 		Duration
(Ma) 		LSR
(cm/k.y.) 		Notes
D01 T Pseudoemiliania lacunosa Calcareous nannofossil NN20 0.44 0.88        
D02 C16n.1r/C16n.2n Chron boundary   36.05 46.57 45.69 35.61 0.13  
D03 C17r/C18n.1n Chron boundary   38.62 51.13 4.56 2.56 0.18 Average rate = 0.24 cm/k.y.
D04 C18r/C19n Chron boundary   41.15 58.67 7.54 2.54 0.30
D05 C19n/C19r Chron boundary   41.39 60.09 1.43 0.24 0.61 Average rate = 0.64 cm/k.y.
D06 C20n/C20r Chron boundary   43.43 73.99 13.90 2.04 0.68
D07 C20r/C21n Chron boundary   45.72 109.68 35.69 2.29 1.56  
D08 C21n/C21r Chron boundary   47.35 130.34 20.66 1.62 1.27  
D09 T Tribrachiatus orthostylus Calcareous nannofossil NP13 50.50 147.78 17.44 3.15 0.55  
D10 B Spongatractus balbis Radiolarian   53.35 147.80 0.03 2.85 0.00 Hiatus
D11 B Podocyrtis papalis Radiolarian   55.96 186.91 39.11 2.61 1.50  
D12 B Ceratolithoides kamptneri Calcareous nannofossil UC20cT 67.84 223.76 36.85 11.88 0.31  
D13 T Reinhardtites levis Calcareous nannofossil UC19 70.14 248.52 24.76 2.30 1.08  
D14 T Broinsonia parca constricta Calcareous nannofossil UC17 72.02 249.80 1.29 1.88 0.07 Hiatus
D15 B Uniplanarius trifidus Calcareous nannofossil UC15dT 76.82 258.68 8.88 4.80 0.19  

LSR = linear sedimentation rate. T = top, B = base.

Previous   |    Close   |    Next   |    Top of page