(Figure 3) Occurrence of diatoms at DSDP Hole 72-516F@en

Counts indicate the number of specimens observed in two traverses of 22 x 22 mm cover slip at x 400; #11 = 11 to 50 specimens observed in two traverses.统计数值代表在400倍放大倍率下，对22×22毫米盖玻片（cover slip）开展两次扫描遍历后观测到的标本数量；其中编号#11对应两次扫描遍历过程中可观测到11至50个标本的情况。