Table T2. Depths and ages of calcareous nannofossil events at Site 1148.
Event
Age
(Ma)
Reference
Interval
Mean depth (mcd)
Top
Depth (mcd)
Bottom
Depth (mcd)
Hole
Core, section, interval (cm)
Hole
Core, section, interval (cm)
FO E. huxleyi Acme 0.09 1 1147B 2H-2, 80–81 12.30 1147B 2H-3, 80–81 13.80 13.05
FO E. huxleyi 0.26 2 1147C 4H-2, 80–81 25.95 1147A 3H-CC, 16–22 26.39 26.17
LO P. lacunosa 0.46 2 1148A 4H-CC, 30–37 34.35 1147B 4H-4, 80–81 35.50 34.93
LO R. asanoi 0.85 1 1148A 7H-3, 80–81 59.00 1148A 7H-4, 80–81 60.50 59.75
FO R. asanoi 1.16 1 1148B 8H-5, 80–81 77.62 1148A 9H-3, 80–81 78.77 78.20
LO C. macintyrei 1.58 2 1148A 11H-5, 80–81 101.82 1148B 11H-2, 80–81 103.22 102.52
FO Gephyrocapsa (medium) spp. 1.69 2 1148B 11H-6, 80–81 109.22 1148A 12H-3, 80–81 109.27 109.25
LO D. brouweri 1.96 2 1148A 13H-4, 80–81 121.70 1148A 13H-5, 80–81 122.95 122.33
LO D. pentaradiatus 2.52 2 1148B 14H-4, 80–81 136.60 1148B 14H-4, 80–81 136.60 136.60
LO D. surculus 2.63 2 1148B 15H-2, 80–81 144.15 1148A 15H-6, 80–81 144.60 144.38
LO D. tamalis 2.78 2 1148A 16H-6, 80–81 154.32 1148A 16H-CC, 0–8 155.44 154.88
LO S. abies/neoabies 3.66 2 1148A 18H-1, 80–81 165.92 1148A 18H-2, 80–81 167.42 166.67
LO R. pseudoumbilicus 3.82 2 1148A 18H-3, 80–81 168.92 1148A 18H-4, 80–81 170.42 169.67
LO Amaurolithus spp. 4.56 2 1148A 18H-5, 80–81 171.92 1148A 18H-CC, 44–51 173.76 172.84
FO D. asymmetricus 4.80 4 1148A 19H-1, 80–81 175.52 1148A 19H-2, 80–81 177.02 176.27
LO C. acutus 4.99 2 1148A 19H-2, 80–81 177.02 1148A 19H-3, 80–81 178.52 177.77
FO C. rugosus 5.07 2 1148A 20H-2, 80–81 186.62 1148A 20H-3, 80–81 188.12 187.37
FO C. acutus 5.34 2 1148A 20H-4, 80–81 189.62 1148A 20H-5, 80–81 191.12 190.37
LO T. rugosus 5.35 2 1148A 20H-5, 80–81 191.12 1148A 20H-6, 80–81 192.62 191.87
LO D. quinqueramus 5.55 2 1148A 20H-6, 80–81 192.62 1148A 20H-CC, 0–7 193.75 193.19
LO A. amplificus 5.93 2 1148A 21H-4, 80–81 199.32 1148A 21H-5, 80–81 200.82 200.07
FO A. amplificus 6.50 2 1148A 22H-5, 80–81 210.52 1148A 22H-6, 80–81 212.02 211.27
FO A. primus 7.17 2 1148A 23H-4, 80–81 218.62 1148A 23H-5, 80–81 220.12 219.37
FO D. berggrenii 8.45 2 1148A 25H-6, 80–81 240.92 1148A 25H-CC, 32–39 242.41 241.67
FO D. quinqueramus 8.45 2 1148A 25H-6, 80–81 240.92 1148A 25H-CC, 32–39 242.41 241.67
FO D. pentaradiatus 8.55 2 1148A 27H-1, 80–81 252.62 1148A 27H-2, 80–81 254.12 253.37
LO D. hamatus 9.40 2 1148A 27H-5, 80–81 258.62 1148A 27H-6, 80–81 260.12 259.37
LO C. calyculus 9.50 4 1148A 27H-CC, 45–52 261.66 1148A 28H-1, 80–81 262.22 261.94
LO C. coalitus 9.80 4 1148A 28H-4, 80–81 266.72 1148A 28H-5, 80–81 268.22 267.47
FO D. hamatus 10.38 2 1148A 29H-3, 80–81 274.82 1148A 29H-4, 80–81 276.32 275.57
FO C. calyculus 10.50 4 1148A 29H-4, 80–81 276.32 1148A 29H-5, 80–81 277.82 277.07
FO C. coalitus 10.73 2 1148A 29H-CC, 26–33 279.46 1148A 30H-1, 80–81 281.42 280.44
LO D. kugleri 11.36 2 1148A 30H-5, 80–81 287.42 1148A 30H-6, 80–81 288.92 288.17
FO D. kugleri 12.20 2 1148A 31H-2, 80–81 292.52 1148A 31H-3, 80–81 294.02 293.27
FO T. rugosus 12.62 2 1148A 32H-2, 80–81 302.12 1148A 32H-3, 80–81 303.62 302.87
LO C. floridanus 13.19 2 1148A 32H-2, 80–81 302.12 1148A 32H-3, 80–81 303.62 302.87
LO S. heteromorphus 13.57 2 1148A 32H-6, 80–81 308.12 1148A 32H-CC, 16–26 309.50 308.81
LO H. ampliaperta 15.87 2 1148A 35H-2, 80–81 331.12 1148A 35H-3, 80–81 332.62 331.87
FO S. heteromorphus 18.20 3 1148A 39H-2, 80–81 369.42 1148A 39H-3, 80–81 370.92 370.17
LO S. belemnos 18.30 3 1148A 39H-4, 60– 372.22 1148A 39H-4, 80–81 372.42 372.32
FO S. belemnos 19.20 3 1148A 41H-3, 80–81 390.22 1148A 41H-4, 80–81 391.72 390.97
LO T. carinatus 19.80 3 1148A 42H-3, 80–81 399.92 1148A 42H-4, 80–81 401.42 400.67
FO D. druggii 23.20 3 1148A 47H-CC, 41–48 454.35 1148A 48H-1, 80–81 454.82 454.59
LO S. capricornutus 23.70 3 1148A 48H-3, 80–81 457.82 1148A 48H-4, 80–81 459.32 458.57
LO S. delphix 23.80 3 1148A 48H-3, 80–81 457.82 1148A 48H-4, 80–81 459.32 458.57
LO R. bisectus 23.90 3 1148A 48H-5, 80–81 460.82 1148A 48H-6, 80–81 462.32 461.57
LO Z. bijugatus 24.50 3 1148A 48H-5, 80–81 460.82 1148A 48H-6, 80–81 462.32 461.57
LO S. ciperoensis 24.75 3 1148A 48H-5, 80–81 460.82 1148A 48H-6, 80–81 462.32 461.57
LO S. distentus 27.50 3 1148B 18H-CC, 38–45 474.85 1148A 50H-CC, 34–41 477.34 476.10
LO S. predistentus 27.50 3 1148B 18H-CC, 38–45 474.85 1148A 50H-CC, 34–41 477.34 476.10
FO S. ciperoensis 29.90 3 1148B 34H-CC, 26–33 617.16 1148A 67H-CC, 30–37 620.00 618.58
FO S. distentus 31.50 3 1148A 73H-3, 77–78 671.89 1148A 73H-5, 80–81 674.92 673.41
LO R. umbilicus 32.30 3 1148B 41H-3, 80–81 729.12 1148B 41H-5, 80–81 731.54 730.33

Notes: 1 = Su (1996), 2 = Shackleton et al. (1995), 3 = Berggren et al. (1995), 4 = ages from various references. FO = first occurrence, LO = last occurrence.