Table T7. Distribution of calcareous nannofossils, Hole U1303A.
Core, section | Age (Ma) |
Abundance | Preservation | Calcidiscus leptoporus | Coccolithus pelagicus | Coccolithus streckerii | Cyclolithella annula | Discolithina japonica | Discolithina spp. | Discosphaera tubifera | Emiliania huxleyi | Gephyrocapsa oceanica | Gephyrocapsa parallela | Gephyrocapsa spp. (small) | Helicosphaera carteri | Helicosphaera hyalina | Helicosphaera inversa | Pseudoemiliania lacunosa | Reticulofenestra asanoi | Reticulofenestra spp. (small) | Rhabdosphaera clavigera | Rhabdosphaera stylifera | Scapholithus fossilis | Syracosphaera pulchra | Umbilicosphaera sibogae | Reworked species | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Reticulofenestra gartneri | Cribrocentrum reticulatum | Reticulofenestra pseudoumbilicus | Isthmolithus recurvus | Reticulofenestra umbilicus | Cretarhabdulus spp. | Prediscosphaella cretacea (s.l.) | Watznaueria barnesae | ||||||||||||||||||||||||||
303-U1303A- | |||||||||||||||||||||||||||||||||
1H-CC | 0~0.25 | A | G | R | F | R | R | R | A | F | F | A | R | R | R | R | |||||||||||||||||
2H-CC | 0~0.25 | R | M | R | R | F | R | C | R | R | r | ||||||||||||||||||||||
3H-CC | 0~0.25 | A | M | R | C | R | R | F | C | C | A | R | R | R | R | ||||||||||||||||||
4H-CC | 0~0.25 | A | G | R | A | R | R | R | F | R | A | F | R | R | R | R | R | R | r | ||||||||||||||
5H-CC | 0.16~0.25 | A | M | R | C | R | R | R | F | R | A | F | R | R | R | R | |||||||||||||||||
6H-CC | 0.41~0.85 | R | P | + | + | + | ? | + | R | + | R | R | r | r | |||||||||||||||||||
7H-CC | 0.41~0.85 | A | G | R | F | + | + | R | R | + | A | R | C | A | + | + | |||||||||||||||||
8H-CC | 0.41~0.85 | A | G | R | C | + | + | R | + | A | R | + | C | R | R | ||||||||||||||||||
9H-CC | 0.41~0.85 | F | M | R | + | + | + | F | R | C | R | + | + | r | |||||||||||||||||||
10H-CC | 0.85~0.95 | F | M | + | + | R | + | F | + | F | + | F | r | r | r | r | r | r | r |
Notes: Abundance: A = abundant, C = common, F = few, R = rare, + = present, r = reworked. Preservation: G = good, M = moderate, P = poor.
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