遇见数据集

(Appendix B) Stratigraphic range and relative abundance of Neogene planktonic foraminifer taxa in ODP Hole 120-748B@en

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DataONE2026-02-15 更新2026-05-19 收录
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Species abundance: A = abundant (>25%), C = common (16-24%), F = frequent (6-15%), R = rare (1-5%), - = absent, based on a random sample of 200-400 specimens from the >63 µm size fraction

物种丰度(Species abundance)的分级标准如下:A为丰富(abundant,占比>25%),C为常见(common,占比16%~24%),F为频见(frequent,占比6%~15%),R为稀有(rare,占比1%~5%),符号"-"代表缺失(absent);该分级基于从粒径>63μm的组分中随机抽取的200~400个标本制定。

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2026-04-09
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