厦门海域沉积物中^(210)Pb的分布和来源的研究

THE DISTRIBUTION AND SOURCE OF ^(210)Pb IN THE SEDIMENTS OF XIAMEN SEA REGION

一、前言^(210)Pb是^(238)U天然放射系的衰变子体核素之一,利用它作为研究沉积年代学和同位素地球化学的重要工具之一是七十年代才发展起来的。现在^(210)Pb已被用于测定江、河、湖、海的沉积速率和一百年左右的沉积物年龄;

The paper reports the distribution and source of ^(210)Pb in the sediments of Xiamen Sea Region The horizontal distributions of ^(210)Pb in the sediments are non-uniform. ^(210)Pb content increases gradually by the ordinal of Jiulong River Estuary(include outside Xiamen Harbor), West Xiamen Harbor and Dongzui Harbor. It is shown that the source of ^(210)Pb in the sediments of Xiamen Sea Region is not from seashore, but from marine.