Table T5. Biomagnetostratigraphic datums used to create linear sedimentation plot.
Age
(Ma)
Event
Top
Bottom
Mean depth (mbsf)
Stratigraphic error (ħm)
Reference
Core, section, interval (cm)
Depth (mbsf)
Core, section, interval (cm)
Depth (mbsf)

Calcareous nannofossil event 189-1168A-
189-1168A-



0.085 FO Emiliania huxleyi acme 1H-1, 15–16 0.15 1H-1, 90–91 0.90 0.53 0.38 1
0.24 FO Emiliania huxleyi 1H-2, 15–16 1.65 1H-2, 90–91 2.40 2.03 0.38 2
0.42 LO Pseudoemiliania lacunosa 1H-3, 15–16 3.15 1H-3, 90–91 3.90 3.53 0.38 3
0.83 LO Reticulofenestra asanoi 2H-1, 90–91 8.20 2H-2, 15–16 8.95 8.58 0.38 3
1.16 FO Reticulofenestra asanoi 2H-3, 15–16 10.45 2H-3, 90–91 11.20 10.83 0.38 3
1.26 LO Helicosphaera sellii 2H-3, 15–16 10.45 2H-3, 90–91 11.20 10.83 0.38 3
1.59 LO Calcidiscus macintyrei 2H-3, 15–16 10.45 2H-3, 90–91 11.20 10.83 0.38 1
1.65 FO Gephyrocapsa oceanica 2H-5, 15–16 13.45 2H-5, 90–91 14.20 13.83 0.38 3
1.72 FO Gephyrocapsa caribbeanica 2H-5, 90–91 14.20 2H-6, 15–16 14.95 14.58 0.38 3
2.51 LO Discoaster surculus 3H-3, 15–16 19.95 3H-3, 90–91 20.70 20.33 0.38 4

Other biomagnetostratigraphic events






2.00 FO Globorotalia truncatulinoides (F) 2H-3, 78–83 11.08 2H, CC 17.00 14.04 2.96 5
2.50 LO Invertocysta sp. (D) 3H-CC 26.58 4H-3, 60 29.86 28.22 1.64 5
2.65 LO Amiculosphaera umbracula (D) 2H-CC 16.965 3H-3, 60–62 20.41 18.69 1.72 5

Calcareous nannofossil event 189-1170A-
189-1170A-



0.085 FO Emiliania huxleyi acme 1H-1, 60–61 0.61 1H-1, 110–111 1.11 0.86 0.25 1
0.24 FO Emiliania huxleyi 2H-1, 60–61 2.31 2H-1, 110–111 2.81 2.56 0.25 2
0.42 LO Pseudoemiliania lacunosa 2H-7, 60–61 11.30 3H-1, 60–61 11.80 11.55 0.25 3
0.83 LO Reticulofenestra asanoi 3H-3, 60–61 14.80 3H-3, 110–111 15.30 15.05 0.25 3
1.16 FO Reticulofenestra asanoi 4H-3, 60–61 23.63 4H-3, 110–111 24.13 23.88 0.25 3
1.26 LO Helicosphaera selli 4H-4, 110–111 25.59 4H-5, 60–61 26.55 26.07 0.48 3
1.59 LO Calcidiscus macintyrei 4H-5, 60–61 26.55 4H-5, 110–111 27.05 26.80 0.25 1

Other biomagnetostratigraphic events






0.45 LO Stylatractus universus (R) 1H-CC 1.57 2H-CC 11.64 6.60 5.03 5
0.64 LO Actinocyclus ingens (D) 2H-CC 11.64 3H-CC 20.71 16.17 4.54 5
1.8 LO Simonseniella barboi (D) 4H-CC 29.01 5H-CC 39.39 34.20 5.19 5
1.95 Onset C2n (M)



39.70
5

Calcareous nannofossil event 189-1171A-
189-1171A-



0.085 FO Emiliania huxleyi acme 1H-1, 15–16 0.15 1H-1, 90–91 0.90 0.53 0.38 1
0.24 FO Emiliania huxleyi 1H-2, 90–91 2.40 1H-3, 15–16 3.15 2.78 0.38 2
0.42 LO Pseudoemiliania lacunosa 1H-5, 90–91 6.90 1H-CC 7.02 6.96 0.06 3
0.85 LO Reticulofenestra asanoi 2H-4, 90–91 12.50 2H-5, 15–16 13.25 12.88 0.38 3
1.16 FO Reticulofenestra asanoi 2H-4, 90–91 16.10 3H-1, 90–91 17.50 16.80 0.70 3
1.26 LO Helicosphaera sellii 3H-3, 90–91 20.50 3H-4, 15–16 21.25 20.88 0.38 3
1.59 LO Calcidiscus macintyrei 3H-5, 15–16 22.75 3H-5, 90–91 23.50 23.13 0.38 1

Other biomagnetostratigraphic events






0.640 LO Actinocyclus ingens (D) 1H-CC 7.01 2H-CC 16.05 11.53 4.52 5
0.650 LO Fragilariopsis reinholdii (D) 1H-CC 7.01 2H-CC 16.05 11.53 4.52 5
0.700 LO Thalassiosira fasiculata (D) 1H-CC 7.01 2H-CC 16.05 11.53 4.52 5
0.780 Onset C1n (M)*



12.60
5
0.990 Termination C1r.1n (M)*



14.90
5
1.070 Onset C1r.1n (M)*



16.50
5
1.400 LO Fragilariopsis barronii (D) 2H-CC 16.10 3H-CC 24.70 20.40 4.30 5
1.500 LO Thalassiosira tetraoestrupii var. reimeri (D) 2H-CC 16.10 3H-CC 24.70 20.40 4.30 5
1.770 Termination C2n (M)*



24.00
5
1.800 LO Proboscia barboi (D) Termination C2n 24.00 3H-CC 24.70 24.35 0.35 5
1.950 Onset C2n (M)*



26.00
5

Calcareous nannofossil event 189-1172A-
189-1172A-



0.085 FO Emiliania huxleyi acme 1H-1, 15–16 0.15 1H-1, 117–118 1.17 0.66 0.51 1
0.24 FO Emiliania huxleyi 1H-2, 15–16 1.65 1H-2, 117–118 2.67 2.16 0.51 2
0.42 LO Pseudoemiliania lacunosa 2H-1, 15–16 6.45 2H-1, 118–119 7.48 6.97 0.52 3
0.86 LO Reticulofenestra asanoi 2H-2, 117–118 9.01 2H-3, 15–16 9.45 9.23 0.22 3
1.16 FO Reticulofenestra asanoi 3H-2, 15–16 17.45 3H-2, 117–118 18.47 17.96 0.51 3
1.26 LO Helicosphaera sellii 3H-3, 15–16 18.95 3H-3, 117–118 19.97 19.46 0.51 3
1.59 LO Calcidiscus macintyrei 3H-3, 15–16 18.95 3H-3, 117–118 19.97 19.46 0.51 1
1.65 FO Gephyrocapsa oceanica 3H-4, 117–118 21.47 3H-5, 15–16 21.95 21.71 0.24 3
1.72 FO Gephyrocapsa caribbeanica 3H-4, 117–118 21.47 3H-5, 15–16 21.95 21.71 0.24 3
1.95 LO Discoaster brouweri 3H-7, 15–16 24.95 3H-CC 25.54 25.25 0.30 1

Other biomagnetostratigraphic events






0.45 LO Stylatractus universus (R)† 1H-CC 2.79 2H-CC 12.73 7.76 4.97 5
0.78 Onset 1n (M)†



12.5
5
1.77 Termination 2n (M)†



17.1
5
1.95 Onset 2n (M)†



19.55
5

Notes: LO = last occurrence, FO = first occurrence. F = foraminiferal bioevent, D = dinocyst bioevent, Dm = diatom bioevent, R = radiolarian bioevent, M = magnetostratigraphic event, * = event from Hole 1171C, † = event from Hole 1172B. 1 = Berggren et al., 1995; 2 = Naish et al., 1998; 3 = Sato and Kameo, 1996; 4 = Wei, 1993; 5 = Stickley et al., this volume.