Planktic foraminifera abundance of Hole 6-47
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Relative abundance: D = dominant, A = abundant, C = common, F = few, R = rare, T = trace, P = present (numerical values are abundance in percent)
相对丰度(Relative abundance)的分级标准为:D代表优势种(dominant),A代表丰富种(abundant),C代表常见种(common),F代表少量种(few),R代表稀有种(rare),T代表痕量种(trace),P代表存在种(present);若采用数值形式表征丰度,则数值以百分比为单位。



