Table T2. Calcareous nannofossil age assignments for Unit I, Site U1348. (See table notes.)
|
Core, section, interval (cm) |
Age-diagnostic species (Abundance) |
Stratigraphic range (Zone) | Age (Ma) |
|---|---|---|---|
| 324-U1348A- | |||
| 1W-1, 0–6 | Discoaster broweri (F) | Miocene–Pleistocene (NN8–NN19) | 16.4–14.7 (?) |
| Discoaster challengeri (C) | Miocene (NN8–NN16/CN12b) | ||
| Discoaster deflandrei (F) | Eocene–Miocene (NN5–NN10) | ||
| Discoaster druggii (?) (F) | Miocene (NN2–NN6) | ||
| Reticulofenestra pseudoumbilicus (C) | Miocene–Pliocene (CN4/NN4–NN15) | ||
| Uniplanarius gothicus (R) | Campanian–Maastrichtian (CC17–CC24) | ||
| 2R-1, 1* | Amaurolithus delicatus (R) | Miocene–Pliocene (NN/NP11–NN/NP14) | 14–11.19 |
| Calcidiscus macintyrei (C) | Miocene–Pleistocene (NN4–NN19) | ||
| Discoaster challengeri (C) | Miocene (NN8–NN16/CN12b) | ||
| Discoaster broweri (F) | Miocene–Pleistocene (NN8–NN19) | ||
| 2R-1, 2 | Calcidiscus macintyrei (C) | Miocene–Pleistocene (NN4–NN19) | 16.4 (?)–9.82 |
| Discoaster challengeri (C) | Miocene–Pliocene (NN8–NN16/CN12b) | ||
| Discoaster broweri (F) | Miocene–Pleistocene (NN8–NN19) | ||
| Discoaster druggii (?) (F) | Miocene (NN2–NN6) | ||
| 2R-1, 6* | Discoaster pentaradiatus (R) | Miocene–Pliocene (NN9/CN7–NN18) | 15.1–8.58 |
| Discoaster challengeri (F) | Miocene (NN8–NN16/CN12b) | ||
| Discoaster broweri (C) | Miocene–Pleistocene (NN8–NN19) | ||
| Calcidiscus macintyrei (C) | Miocene–Pleistocene (NN4–NN19) | ||
| 2R-1, 6† | Uniplanarius gothicus (R) | Campanian–Maastrichtian (CC17–CC24) | 89.3–87.2 |
| Arkhangelskiella cybiformis (R) | Santonian–Campanian (UC13) | ||
| Cretarhabdus striatus (R) | Aptian–Cenomanian (?–UC4) | ||
| 2R-1, 60 | Uniplanarius gothicus (R) | Campanian–Maastrichtian (CC17–CC24) | 84–69.6 |
| Reinhardites levis (R) | late Campanian–Maastrichtian (?–CC25/UC19) | ||
| 2R-1, 91 | Micula decussata (R) | Coniacian–Maastrichtian (CC14–CC27) | 87.2–69.2 |
| Lithraphidites decoratus (R) | Albian–Maastrichtian (CC9–CC25) | ||
| 2R-1, 94.5 | Micula decussata (R) | Coniacian–Maasstrichtian (CC14–CC27) | 77–69.6 |
| Uniplanarius sissinghii (R) | Campanian–Maastrichtian (CC21–CC24) | ||
| 2R-1, 95 | Uniplanarius gothicus (R) | Campanian–Maastrichtian (CC17–CC24) | 77–69.6 |
| Micula decussata (R) | Coniacian–Maasstrichtian (CC14–CC27) | ||
| Uniplanarius sissinghii (R) | Campanian–Maastrichtian (CC21–CC24) | ||
| 2R-CC, 12–15 | Micula staurophora (R) | Coniacian–Maastrichtian (UC10–NP1) | 85.5–75.5 |
| Lithrastrinus grillii (R) | Santonian–Campanian (UC11–CC22b) | ||
| Microrhabdulus decoratus (R) | Cenomanian–Maastrichtian (CC10/UC3–top CC26) | ||
| 4R-1, 0–1 | Micula decussata (R) | Coniacian–Maastrichtian (CC14–CC27) | 84.8–83.4 |
| Zeugrhabdotus bicrescenticus (F) | Albian–Maastrichtian (?) | ||
| Eprolithus floralis (C) | Aptian–Santonian (NC7a–CC16) | ||
| Uniplanarius gothicus (R) | Campanian–Maastrichtian (CC17–CC24) | ||
| 7R-1, 6–7 | Eprolithus floralis (C) | Aptian–Santonian (NC7a–CC16) | 119.5–84 |
| 9R-1, 19–20 | Rhagodiscus robustus (R) | Barremian–Albian (NC5–NC10a) | 121.1–99.1 |
| Cretarhabdus striatus (R) | Aptian–Cenomanian (?–UC4) | ||
| 9R-1, 57–60 | Eprolithus floralis (C) | Aptian–Santonian (NC7a–CC16) | 119.5–84 |
| 10R-1, 1 | Eprolithus floralis (R) | Aptian–Santonian (NC7a–CC16) | 119.5–84 |
| 10R-1, 17 | Eprolithus floralis (R) | Aptian–Santonian (NC7a–CC16) | 119.5–84 |
| 10R-1, 20–21 | Eprolithus floralis (R) | Aptian–Santonian (NC7a–CC16) | 119.5–84 |
Notes: * = gray sediment, † = white sediment. Abundance: C = common, F = frequent, R = rare. Zone ranges are only given for properly defined taxa.
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