(Table 2) Distribution of calcareous nannofossils at ODP Site 189-1170, South...
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Magnification of 1000 X. Abundance of nannofossil taxa: V = very abundant more than 10 specimens per field of view, A = abundant 1-10 specimens per field of view, C = common 1...
放大倍数为1000倍。超微化石分类群（nannofossil taxa）的丰度分级规则如下：V代表极丰富（每个视野（field of view）内标本数量超过10个），A代表丰富（每个视野内标本数量为1~10个），C代表常见（1……
