Table T7. Age-depth control points, Hole 1236A.
Datum
Source
Age (Ma)
Top sample
(FO presence/LO absence)
Bottom sample
(LO presence/FO absence)
Age (Ma)
Depth
Core, section, interval (cm)
Depth (mbsf)
Core, section, interval (cm)
Depth (mbsf)
Average
Uncertainty (±)
Average (mbsf)
Average (mcd)
Uncertainty (±m)
Minimum
Maximum




202-1236A-
202-1236A-





LO Pseudoemiliania lacunosa CN 0.46 0.46 1H-1, 75 0.75 1H-2, 75 2.25 0.46 0.00 1.50 1.53 0.75
LO Reticulofenestra asanoi CN 0.88 0.88 1H-2, 75 2.25 1H-3, 75 3.76 0.88 0.00 3.01 3.04 0.76
FO Reticulofenestra asanoi CN 1.08 1.08 1H-3, 75 3.76 1H-CC, 13 4.57 1.08 0.00 4.17 4.20 0.41
LO Gephyrocapsa (large) CN 1.24 1.24 1H-3, 75 3.76 1H-CC, 13 4.57 1.24 0.00 4.17 4.20 0.41
FO Gephyrocapsa (large) CN 1.45 1.45 1H-CC, 13 5.57 2H-1, 76 5.36 1.45 0.00 5.47 5.89 -0.11
LO Calcidiscus macintyrei CN 1.59 1.59 1H-CC, 13 5.57 2H-1, 76 5.36 1.59 0.00 5.47 5.89 -0.11
FO Globorotalia inflata PF 2.09 2.09 1H-CC, 13 5.57 2H-CC, 14 5.36 2.09 0.00 5.47 10.06 -0.11
LO Discoaster brouweri CN 1.96 1.96 2H-1, 76 5.36 2H-2, 76 6.87 1.96 0.00 6.12 7.93 0.76
LO Discoaster pentaradiatus CN 2.44 2.44 2H-3, 76 8.38 2H-4, 76 9.89 2.44 0.00 9.14 10.95 0.76
LO Discoaster surculus CN 2.61 2.61 2H-3, 76 8.38 3H-4, 76 9.89 2.61 0.00 9.14 10.95 0.76
LO Discoaster tamalis CN 2.76 2.76 2H-4, 76 9.89 2H-5, 76 11.41 2.76 0.00 10.65 12.46 0.76
LO Sphaeroidinellopsis seminula CN 3.12 3.12 1H-CC, 13 5.57 2H-CC, 14 13.64 3.12 0.00 9.61 10.10 4.04
FO Globorotalia tosaensis PF 3.35 3.35 2H-CC, 14 13.64 3H-CC, 13 23.46 3.35 0.00 18.55 20.48 4.91
LO Reticulofenestra pseudoumbilicus CN 3.80 3.80 3H-2, 76 16.19 3H-3, 76 17.70 3.80 0.00 16.95 18.86 0.75
FO Pseudoemiliania lacunosa CN 4.00 4.00 3H-3, 76 17.70 3H-4, 76 19.21 4.00 0.00 18.46 20.37 0.75
LO Globoturborotalia nepenthes PF 4.20 4.20 2H-CC, 14 13.64 3H-CC, 13 23.46 4.20 0.00 18.55 20.48 4.91
LO Triquetrorhabdulus rugosus CN 5.35 5.35 5H-CC, 11 41.98 6H-1, 76 43.36 5.35 0.00 42.67 49.36 0.69
LO Absence interval Reticulofenestra pseudoumbilicus >7 µm CN 6.80 6.80 5H-CC, 11 41.98 6H-1, 76 43.36 6.80 0.00 42.67 49.36 0.69
FO Amaurolithus primus CN 7.24 7.24 6H-1, 76 43.36 6H-2, 76 44.87 7.24 0.00 44.12 51.30 0.75
FO Globorotalia plesiotumida PF 8.58 8.58 6H-CC, 13 51.82 7H-CC, 14 62.10 8.58 0.00 56.96 64.03 5.14
FO Absence interval Reticulofenestra pseudoumbilicus >7 µm CN 8.85 8.85 6H-CC, 13 51.20 7H-1, 76 52.86 8.85 0.00 52.03 59.41 0.83
LO Coccolithus miopelagicus CN 10.40 10.40 7H-6, 76 60.42 7H-CC, 14 62.10 10.40 0.00 61.26 68.83 0.84
FO Globoturborotalia nepenthes PF 11.19 11.19 7H-CC, 14 62.10 8H-CC, 14 69.52 11.19 0.00 65.81 75.35 3.71
LO Coronocyclus nitescens CN 12.43 12.43 7H-CC, 14 62.10 8H-1, 76 62.36 12.43 0.00 62.23 71.76 0.13
Coscinodiscus lewisianus Zone D 12.47 13.51 9H-1, 64 71.74 9H-1, 66 71.76 12.99 0.52 71.75 82.28 0.01
LO Cyclicargolithus floridanus CN 11.6 13.19 7H-CC, 14 62.10 8H-1, 76 62.36 12.40 0.80 62.23 71.76 0.13
LO Calcidiscus premacintyrei CN 12.65 12.65 8H-1, 76 62.36 8H-2, 76 63.86 12.65 0.00 63.11 74.60 0.75
FO Globorotalia fohsi robusta PF 13.42 13.42 8H-CC, 14 69.52 9H-CC, 12 80.29 13.42 0.00 74.91 85.95 5.39
LO Sphenolithus heteromorphus CN 13.57 13.57 9H-2, 76 73.37 9H-3, 76 74.88 13.57 0.00 74.13 84.66 0.75
LO Praeorbulina sicana PF 14.80 14.80 8H-CC, 14 69.52 9H-CC, 12 80.29 14.80 0.00 74.91 85.95 5.39
FO Orbulina suturalis PF 15.10 15.10 9H-CC, 12 80.29 10H-CC, 15 88.79 15.10 0.00 84.54 96.90 4.25
FO Praeorbulina sicana PF 16.40 16.40 11H-CC, 11 99.52 12H-CC, 17 109.56 16.40 0.00 104.54 118.01 5.02
FO Sphenolithus heteromorphus CN 18.20 18.20 13H-6, 76 117.41 13H-CC, 1 118.38 18.20 0.00 117.90 132.27 0.48
LO Sphenolithus belemnos CN 18.50 18.50 13H-6, 76 117.41 13H-CC, 1 118.38 18.50 0.00 117.90 132.27 0.48
FO Sphenolithus belemnos CN 19.20 19.20 15H-3, 76 131.88 15H-5, 76 134.90 19.20 0.00 133.39 147.94 1.51
LO Globoturborotalia angulisuturalis PF 21.60 21.60 17H-CC, 11 151.04 18H-CC, 16 160.56 21.60 0.00 155.80 170.68 4.76
FO Globoquadrina dehiscens PF 23.20 23.20 18H-CC, 16 160.56 19H-CC, 21 170.37 23.20 0.00 165.47 180.34 4.91
LO Reticulofenestra bisecta CN 23.90 23.90 18H-3, 75 154.87 18H-4, 75 156.35 23.90 0.00 155.61 170.44 0.74
LO Zygrhabdolithus bijugatus CN 24.50 24.50 18H-3, 75 154.87 18H-4, 75 156.35 24.50 0.00 155.61 170.44 0.74
LO Sphenolithus ciperoensis CN 24.75 24.75 22X-3, 75 186.56 22X-5, 75 189.58 24.75 0.00 188.07 203.19 1.51

Notes: FO = first occurrence, LO = last occurrence. CN = calcareous nannofossils, PF = planktonic foraminifers, D = diatoms.