Table T4. Biostratigraphic datums, Site 1192.

 
Datum Core, section,
interval (cm)
Depth (mbsf) Mean
depth
(mbsf)
Age
(Ma)
First
absence or
presence
Last
presence or
absence

194-1192A-



LO Globorotalia tosaensis 1H-1, 0, to 1H-CC 0.00 9.55 4.78 0.60
LO Reticulofenestra asanoi 1H-1, 0, to 1H-CC 0.00 9.55 4.78 0.88
LO Calcidiscus macintyrei 2H-CC to 3H-CC 14.42 28.61 21.52 1.70
LO Globigerinoides fistulosus 2H-CC to 3H-CC 14.42 28.61 21.52 1.77
FO Globorotalia truncatulinoides 3H-CC to 5H-CC 28.61 38.67 33.64 2.00
LO Discoaster surculus 2H-CC to 3H-CC 14.42 28.61 21.52 2.60
LO Discoaster tamalis 3H-CC to 5H-CC 28.61 38.67 33.64 2.80
LO Dentoglobigerina altispira 6H-CC to 7H-CC 48.98 58.38 53.68 3.09
LO Reticulofenestra pseudoumbilica 6H-CC to 7H-CC 48.98 58.38 53.68 3.70
LO Globigerina nepenthes 8H-CC to 9H-1, 80-82 68.03 68.30 68.17 4.18
LO Discoaster quinqueramus 10H-3, 80-82, to 10H-4, 80-82 80.80 82.30 81.55 5.60
FO Discoaster surculus 15H-CC to 16H-CC 125.70 134.80 130.25 7.50
FO Discoaster quinqueramus 17H-CC to 19H-CC 144.80 163.98 154.39 8.50
LO Discoaster neohamatus 19H-CC to 20H-CC 163.98 173.44 168.71 9.40
LO Cyclicargolithus floridanus 21H-CC to 24H-CC 182.25 241.81 212.03 11.90

194-1192B-



LO Discoaster hamatus 6H-CC to 7H-CC 210.94 211.44 211.19 9.50
FO Discoaster hamatus 8H-CC to 9H-CC 230.01 236.93 233.47 10.50
FO Neogloboquadrina mayeri 14X-CC to 15X-CC 277.68 291.88 284.78 11.40
LO Sphenolithus heteromorphus 16X-CC to 17X-CC 301.41 313.38 307.40 13.60
FO Praeorbuliua sicana 21X-CC to 22X-CC 344.27 346.98 345.63 16.40
FO Sphenolithus heteromorphus Below 22X-CC >347.00

18.20

Note: FO = first occurrence, LO = last occurrence.