Nannofossil abundance of Hole 1-7

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（Relative abundance）分级标准为：D为优势（dominant）级，A为丰盛（abundant）级，C为常见（common）级，F为少量（few）级，R为稀有（rare）级，T为痕量（trace）级，P为存在（present）级；括号内说明：数值为以百分比表示的丰度值。