Table T5. Stratigraphic positions of selected calcareous nannofossil datums, Site 1262.
Datum
Top of sample interval
Base of sample interval
Average (mcd)
Age (Ma)
Core, section, interval (cm)
Depth
Core, section, interval (cm)
Depth
Youngest
Oldest
(mbsf)
(mcd)
(mbsf)
(mcd)




208-1262A-
208-1262A-


B Gephyrocapsa parallela 0.98 1.03 1H-1, 1 0.01 6.05 1H-1, 100 1.00 7.04 6.55
T Large Gephyrocapsa 1.22 1.26 1H-2, 120 2.70 8.74 1H-3, 48 3.48 9.52 9.13
B Medium Gephyrocapsa spp. 1.69 1.71 1H-5, 145 7.45 13.49 1H-6, 30 7.80 13.84 13.67

Zone CN13a assemblage 1.7 1.8 1H-CC 9.97 16.01 2H-1, 141 10.91 17.22 16.62

Zone CN12aB assemblage 2.83 3.66 2H-1, 141 10.91 17.22 3H-CC 28.41 35.72 26.47

Zone CN10c assemblage 4.56 5.05 3H-CC 28.41 35.72 4H-CC 38.52 46.03 40.88
T Ericsonia formosa 32.9 32.9 7H-5, 90 63.90 75.29 7H-6, 127 65.77 77.16 76.23
T Discoaster saipanensis 34.0 34.0 7H-CC 66.73 78.12 8H-1, 50 67.00 81.04 79.58
T Discoaster barbadiensis 34.2 34.2 7H-CC 66.73 78.12 8H-1, 50 67.00 81.04 79.58
T Tribrachiatus orthostylus 51.0 51.0 9H-4, 120 81.70 96.91 9H-5, 70 82.70 97.91 97.41
B Discoaster lodoensis 52.4 52.4 10H-5, 6 91.56 107.67 10H-5, 50 92.00 108.11 107.89
T Discoaster multiradiatus 53.0 53.0 11H-2, 70 97.20 113.25 11H-2, 140 97.90 113.95 113.60
B Tribrachiatus orthostylus 53.4 53.4 11H-5, 120 102.20 118.25 11H-6, 90 103.40 119.45 118.85

Fasciculithus spp. 54.1 54.1 13H-4, 43 118.93 137.04 13H-4, 60 119.10 137.21 137.13

Increase Zygrhablithus bijugatus

13H-6, 10 121.60 139.71 13H-6, 25 121.75 139.86 139.79
B Rhomboaster spp.

13H-6, 25 121.75 139.86 13H-6, 38 121.88 139.99 139.93
B Discoaster multiradiatus 56.2 56.2 14H-CC 132.71 151.93 15H-1, 100 134.00 154.16 153.05
B Heliolithus riedelii 57.3 57.3 16H-4, 87 147.87 168.83 16H-5, 24 148.74 169.70 169.27
B Discoaster mohleri 57.5 57.5 16H-4, 87 147.87 168.83 16H-5, 24 148.74 169.70 169.27
B Heliolithus kleinpellii 58.2 58.2 17H-2, 129 154.79 175.18 17H-3, 34 155.34 175.73 175.46
B Sphenolithus anarrhopus 58.4 58.4 17H-2, 129 154.79 175.18 17H-3, 34 155.34 175.73 175.46




208-1262B-

208-1262B-


T Pseudoemiliania lacunosa 0.46 0.46 1H-3, 7 3.07 3.07 1H-3, 90 3.90 3.90 3.49
T Ericsonia formosa 32.9 32.9 9H-1, 143 68.83 75.70 9H-2, 10 69.00 75.87 75.79
T Discoaster saipanensis 34.0 34.0 9H-4, 6 71.96 78.83 9H-4, 85 72.75 79.62 79.23
T Discoaster barbadiensis 34.2 34.2 9H-4, 6 71.96 78.83 9H-4, 85 72.75 79.62 79.23
B Isthmolithus recurvus 36.6 36.6 9H-5, 81 74.21 81.08 9H-5, 97 74.37 81.24 81.16
B Discoaster sublodoensis 49.3 49.3 10H-6, 145 85.85 93.27 10H-7, 40 86.30 93.72 93.50
T Tribrachiatus orthostylus 51.0 51.0 11H-1, 80 87.20 96.78 11H-2, 80 88.70 98.28 97.53
B Discoaster lodoensis 52.4 52.4 12H-1, 130 97.20 107.84 12H-2, 40 97.80 108.44 108.14
T Discoaster multiradiatus 53.0 53.0 13H-1, 100 106.40 117.37 13H-2, 50 107.07 118.04 117.71
B Sphenolithus radians 53.3 53.3 13H-2, 50 107.07 118.04 13H-2, 140 107.97 118.94 118.49
B Tribrachiatus orthostylus 53.4 53.4 13H-2, 50 107.07 118.04 13H-2, 140 107.97 118.94 118.49
T Fasciculithus spp.

14H-CC 124.34 136.23 15H-CC 133.84 146.16 141.20
B Rhomboaster spp.

14H-CC 124.34 136.23 15H-CC 133.84 146.16 141.20
B Discoaster multiradiatus 56.2 56.2 16H-5, 100 140.90 153.76 16H-6, 100 142.40 155.26 154.51
B Discoaster okadai 56.4 56.4 17H-1, 20 143.60 157.22 17H-1, 130 144.70 158.32 157.77
B Heliolithus riedelii 57.3 57.3 18H-1, 140 154.30 169.39 18H-2, 54 154.94 170.03 169.71
B Discoaster mohleri 57.5 57.5 18H-2, 54 154.94 170.03 18H-2, 140 155.80 170.89 170.46
B Heliolithus kleinpellii 58.2 58.2 18H-5, 40 159.30 174.39 18H-5, 140 160.30 175.39 174.89
B Sphenolithus anarrhopus 58.4 58.4 18H-5, 140 160.30 175.39 18H-6, 40 160.80 175.89 175.64
B Heliolithus cantabriae 58.8 58.8 19H-1, 20 162.60 178.69 19H-1, 130 163.70 179.79 179.24
B Fasciculithus pileatus 59.3 59.3 19H-CC 172.07 188.16 20H-1, 20 172.10 189.43 188.80
B Fasciculithus tympaniformis 59.7 59.7 19H-CC 172.07 188.16 20H-1, 20 172.10 189.43 188.80
B Fasciculithus spp. 60.0 60.0 20H-1, 20 172.10 189.43 20H-1, 135 173.25 190.58 190.01
B Sphenolithus primus 60.6 60.6 20H-3, 20 175.10 192.43 20H-3, 110 176.00 193.33 192.88
B Chiasmolithus bidens 60.7 60.7 20H-5, 20 178.10 195.43 20H-5, 110 179.00 196.33 195.88
B Chiasmolithus danicus 64.2 64.2 21H-7, 10 190.00 209.94 21H-CC 190.55 210.49 210.22
B Cruciplacolithus tenuis s.s. 64.5 64.5 22H-2, 72 192.62 213.61 22H-3, 33 192.99 213.98 213.80
B Cruciplacolithus primus 64.8 64.8 22H-3, 33 192.99 213.98 22H-3, 130 193.96 214.95 214.47
B Micula prinsii 65.4 65.4 22H-CC 200.76 221.75 23H-1, 40 200.80 223.98 222.87




208-1262C-

208-1262C-


B Discoaster lodoensis 52.4 52.4 1H-CC 95.06 102.84 2H-CC 108.43 118.22 110.53
T Discoaster multiradiatus 53.0 53.0 2H-CC 108.43 118.22 3H-CC 117.92 127.89 123.06
B Sphenolithus radians 53.3 53.3 2H-CC 108.43 118.22 3H-CC 117.92 127.89 123.06
B Tribrachiatus orthostylus 53.4 53.4 2H-CC 108.43 118.22 3H-CC 117.92 127.89 123.06
B Rhomboaster cuspis 54.1 54.1 4H-CC 126.90 132.41 5H-CC 131.83 144.06 138.24
T Fasciculithus spp. 54.1 54.1 4H-CC 126.90 132.41 5H-CC 131.83 144.06 138.24
B Discoaster multiradiatus 56.2 56.2 6H-CC 141.05 153.54 7H-CC 151.29 161.88 157.71
B Discoaster mohleri 57.5 57.5 7H-CC 151.29 161.88 8H-CC 157.82 170.82 166.35
B Heliolithus kleinpellii 58.2 58.2 9H-1, 150 160.00 173.82 9H-CC 168.35 182.17 178.00
B Sphenolithus anarrhopus 58.4 58.4 9H-1, 150 160.00 173.82 9H-CC 168.35 182.17 178.00
B Heliolithus cantabriae 58.8 58.8 9H-1, 150 160.00 173.82 9H-CC 168.35 182.17 178.00
B Fasciculithus pileatus 59.3 59.3 10H-6, 30 175.80 190.72 10H-6, 100 176.50 191.42 191.07
B Fasciculithus spp. 60.0 60.0 10H-7, 4 176.74 191.66 10H-CC 177.65 192.57 192.12
B Chiasmolithus danicus 64.2 64.2 11H-CC 185.79 202.31 12H-CC 193.25 212.03 207.17
B Cruciplacolithus tenuis s.s. 64.5 64.5 12H-CC 193.25 212.03 13H-CC 203.69 224.73 218.38
B Cruciplacolithus primus 64.8 64.8 12H-CC 193.25 212.03 13H-CC 203.69 224.73 218.38
B Micula prinsii 65.4 65.4 13H-CC 203.69 224.73 14H-CC 212.96 236.38 230.56

Note: T = top, B = bottom.