(Appendix A) Diatom abundance index from ODP Hole 175-1084A
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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:极丰富(占比>50%);5级:丰富(占比35%~50%);4级:常见(占比20%~35%);3级:稀少(占比5%~20%);2级:罕见(占比1%~5%);1级:痕量(占比<1%)



