Table T8. Calcareous nannofossil events, Site 1138.
Events
Core, section, interval (cm)
Depth
(mbsf)
Age
(Ma)
Top
Bottom

183-1138A- 183-1138A-

FO Isthmolithus recurvus 37R-2, 25-26 37R-2, 100-101 344.73 36
FO Chiasmolithus oamaruensis 37R-3, 25-26 37R-3, 100-101 346.23 37
LO Chiasmolithus grandis 37R-3, 100-101 37R-4, 25-026 346.98 37.1
LO Chiasmolithus solitus 37R-6, 100-101 37R-CC 351.52 37.9
FCO Reticulofenestra umbilica 43R-1, 100-101 43R-2, 25-26 401.78 43.7
LO Chiasmolithus gigas 43R-4, 100-101 43R-5, 25-26 406.28 44.5
FO Chiasmolithus gigas 45R-CC 46R-1, 25-26 425.82 46.1
FO Nannotetrina fulgens 46R-1, 25-26 46R-CC 429.96 47.3
FO Discoaster sublodoensis 47R-CC 48R-1, 25-26 445.38 49.7
FO Tribrachiatus orthostylus 48R-1, 100-101 48R-2, 25-26 449.96 53.6
FO Discoaster multiradiatus 49R-1, 25-26 49R-1, 100-101 458.83 56.2
FO Discoaster mohleri 49R-1, 100-101 49R-2, 25-26 459.58 57.5
FO Heliolithus kleinpellii 49R-2, 25-26 49R-2, 100-101 460.33 58.4
FO Fasciculithus tympaniformis 49R-CC 50R-1, 25-26 464.72 59.7
FO Chiasmolithus bidens 50R-CC 51R-1, 25-26 473.89 60.7
FO Prinsius martinii 51R-1, 25-26 51R-1, 100-101 477.73 62.4
FO Chiasmolithus danicus 51R-4, 100-101 52R-1, 3-3 484.29 63.8
FO Cruciplacolithus tenuis 52R-3, 4-4 52R-3, 10-11 489.76 64.5
FO Hornibrookina sp. 52R-3, 29-29 52R-3, 40-42 490.05 64.83

Notes: Depth is the midpoint between two samples. FO = first occurrence, FCO = first common occurrence, LO = last occurrence.