Radiolaria abundance of Hole 18-177A

Relative abundance: D = dominant, A = abundant, C = common, F = few, R = rare, T = trace, P = present (numerical values are abundance in percent)相对丰度分级规则如下：D对应优势（dominant）等级，A对应丰富（abundant）等级，C对应常见（common）等级，F对应少量（few）等级，R对应稀有（rare）等级，T对应痕量（trace）等级，P对应存在（present）等级；数值型丰度值以百分比为单位。