Table T4. Distribution of calcareous nannofossils, Hole U1307B.
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Core, section
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Age (Ma)
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Abundance
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Preservation
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Calcidiscus leptoporus
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Calcidiscus macintyrei
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Ceratolithus cristatus
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Coccolithus streckerii
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Coccolithus pelagicus
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Discoaster asymmetricus
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Discoaster brouweri
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Discoaster pentaradiatus
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Discoaster surculus
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Discoaster triradiatus
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Discoaster spp.
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Discolithina japonica
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Discolithina spp.
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Emiliania huxleyi
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Gephyrocapsa caribbeanica
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Gephyrocapsa oceanica
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Gephyrocapsa parallela
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Gephyrocapsa spp. (large)
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Gephyrocapsa spp. (small)
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Helicosphaera carteri
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Helicosphaera sellii
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Pseudoemiliania lacunosa
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Reticulofenestra ampla
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Reticulofenestra asanoi
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Reticulofenestra spp. (small)
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Reworked species
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Nannofossil datum age (Ma)
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Reticulofenestra pseudoumbilicus
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Cribrosphaerella ehrenbergii
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Eiffellithus turriseiffeli
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Watznaueria barnesae
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303-U1307B- |
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| 1H-CC | 0~0.25 | R | M |
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+ |
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+ |
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+ |
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| 2H-CC | ? | R | P |
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+ |
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| 3H-CC | 0.41~0.85 | F | M | + |
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+ |
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+ |
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+ |
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+ | + |
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R |
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+ |
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r | r | r |
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| 4H-CC | 0.41~0.85 | R | P | + |
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+ |
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+ |
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+ |
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r |
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| 5H-CC | 0.95~1.16 | F | M | R |
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+ |
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+ | R |
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R |
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F | F |
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| 6H-CC | ? | R | P | + |
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+ |
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R |
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+ |
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r |
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| 7H-CC | ? | B |
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| 8H-CC | 1.45~1.65 | F | P | + |
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F |
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R | + |
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F | + |
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+ |
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+ |
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r |
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| 9H-CC | ? | R | P |
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+ |
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+ |
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| 10H-CC | 1.73~2.74 | C | G |
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R | C |
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+ | R | R | R |
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+ |
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r | r | r |
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| 11H-CC | ? | R | P |
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+ |
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+ |
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| 12H-CC | ? | B |
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| 13H-CC | ? | B |
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| 14H-CC | 2.74~3.85 | C | M | F | R | + | R | A | + | + | R | R | + | + | + |
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R | R | R | R |
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A | r |
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| 15H-CC | ? | B |
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| 16H-CC | ? | B |
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| 17H-CC | 2.74~3.85 | C | M | F | + |
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R | C | + | + | + | + |
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+ | + |
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+ | R | + |
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A | r |
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Notes: Abundance: A = abundant, C = common, F = few, R = rare, B = barren, + = present, r = reworked. Preservation: G = good, M = moderate, P = poor.
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