(Appendix A) Diatom abundance index from ODP Hole 175-1083A@en
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Definition of DAI numbers is 6: very abundant >50%; 5: abundant35-50%; 4: common 20-35 %; 3: few 5-20%; 2: rare 1-5%; 1: trace <1%
DAI数值(DAI numbers)的定义如下:6级为极丰富,占比大于50%;5级为丰富,占比35%至50%;4级为常见,占比20%至35%;3级为少见,占比5%至20%;2级为稀有,占比1%至5%;1级为痕量,占比小于1%。
创建时间:
2026-04-10



