珠江口以东陆架沉积物U、Th的分布  

GEOCHEMICAL STUDIES ON U AND Th IN SEDIMENTS FROM THE CONTINENTAL SHELF EAST OF THE PEARL RIVER MOUTH

作　　者：陈绍勇[1] 林植青[1] 郑建禄[1] 陈钧铭[2] 

机构地区：[1]中国科学院南海海洋研究所 [2]美国加洲大学

出　　处：《热带海洋》1989年第1期90-94,共5页

基　　金：国家自然科学基金资助项目

摘　　要：应用中子活化分析测定了南海东部沿岸沉积物U、Th和Fe的含量,沉积物U、Th和Fe的含量为和。研究了南海东部沿岸沉积物U和Th的分布规律,U和Fe含量的相关关系为:The concentrations of U, Th and Fe in sediments from the continental shelf east of the Pearl River Mouth have been determined by Neutron Activation Analysis.The region of investigation is located at 113°30'-118°E and 20°-24°N. The concentrations of U, Th and Fe in sediments are 1.0°-3.5× 10(-6)g/g, 4.0-21.0×10(-6)g/g and 1.0-5.6%.Geochemical studies of U and Th in sediments from eastern offshore South China Sea were carried out.The relationship of the concentration of U with Fe is as follows:U(10(-6)g/g)=1.08+0.49Fe(%)

关 键 词：大陆架 沉积物 铀 钍 珠江口 

分 类 号：P736.41[天文地球—海洋地质]