(Table 5) Distribution chart of calcareous nannofossils of ODP Hole 135-836A
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Species abundances per traverse: R = rare (1-5 specimens), S = rare to frequent (6-15 specimens), F = frequent (16-35 specimens), M = frequent to common (36-75 specimens), C =...
各样带的物种丰度分级规则如下:R(Rare,稀有):标本数量为1~5件;S(Rare to Frequent,稀见至常见):标本数量为6~15件;F(Frequent,常见):标本数量为16~35件;M(Frequent to Common,常见至丰富):标本数量为36~75件;C=……



