(Table 8) Miocene-Pleistocene diatom biostratigraphy of ODP Hole 120-748B
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R = rare ( one specimen of a particular species encountered in 5-20 fields of view using a 40X objective and 10X ocular), F = frequent (one specimen in every 5 fields), C =...
R = 稀有(rare,使用40倍物镜(objective)与10倍目镜(ocular)观察时,在5至20个视野(field of view)内仅能检出某一特定物种的1份标本),F = 常见(frequent,每5个视野即可检出1份标本),C =……



