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长江口及其邻近陆架沉积物中226Ra和210Pb的分布特征
陈进兴1
国家海洋局第三海洋研究所
摘要:
本文利用放射化学分析法测定了长江口及其邻近陆架沉积物中226Ra和210Pb的含量。结果表明,在该海区的沉积物中,226Ra含量的水平分布随经度增加而直线下降,而210Pb含量的水平分布则随经度增加而直线上升,二者形成明显的同步反向分布。
关键词:  沉积物  210Pb  226Ra  分布
DOI：
分类号:
基金项目:
THE DISTRIBUTION OF 226Ra AND 210Pb IN THE SEDIMENTSAT THE ESTUARY OF CHANGJIANG RIVER AND ITSADJACENT CONTINENTAL SHELF
Abstract:
This paper reports the determination and distribition of 226Ra and 210Pb in the sediments of Chang Jiang River Estuary and its adjacent continental shelf. The contents of 226Ra in the sediments decreases gragually with the increase of longitude, but the contents of 210Pb does the opposite.
Key words:  Sediment  226Ra  210Pb  Distribution
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