Size fraction >63 µm determination of sediment core LV76-21

Sediment for IRD determination was sampled from 1 cm-thick slices with steps of 2–4 cm through the core. Samples with a dry weight of approximately 10 g were wet sieved using a...用于冰筏碎屑（Ice-Rafted Debris，IRD）测定的沉积物样品，通过沿岩心以2~4cm的采样间隔截取1cm厚的切片采集得到。称取干重约10g的样品，采用……进行湿筛操作。