【摘要】 <正> 一、前言利用放射性²¹⁰Pb的衰变规律来研究江、河、湖、海底质的沉积速率和沉积物的年龄,以及研究冰山的堆积速率和堆积层的年龄,在国外已有不少研究,我国也开展了这方面的工作。利用²¹⁰Pb研究沉积速率和沉积物的年龄,可为疏通河道、更多还原

【Abstract】 This paper reports briefly the important significance of ²¹⁰Pb method on dete- rmining modern sedimentation rates and sedimintal ages, the source of ²¹⁰Pb, the properties of nuclear and chmistry of ²¹⁰Pb, the fundamental of determining sedim- entation rates and sedimental ages by using ²¹⁰Pb method, the analytical method of ²¹⁰Pb in the sediments and some living samples in determining sedimentation rates and sedimental ages with ²¹⁰Pb etc.更多还原