Age model of sediment core V20-241

Ages for 4 and 22 kyrs have been interpolated from sedimentation rates, stratigraphy after CaCO3 and grain size distribution4千年及22千年的年龄数据系结合沉积速率、碳酸钙（CaCO₃）约束的地层序列与粒度分布，通过插值方法计算得到。