Ice-rafted debris of Late Cenozoic sediments from ODP Leg 104 holes

The abundance and composition of the upper Cenozoic terrigenous coarse-sand fraction (250 µm-2 mm) at ODP Sites 642, 643, and 644 were investigated to date the onset of...本研究针对大洋钻探计划（Ocean Drilling Program, ODP）642、643及644站位的晚新生代陆源粗砂组分（粒径250微米~2毫米）的丰度与组成展开调查，以确定……的起始时间。