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地球学报  2008 

粤西云浮含铊硫化物矿产利用对环境的影响:元素-铅同位素示踪研究

DOI: 10.3975/cagsb.2008.06.17

Keywords: ,铅同位素,云浮硫铁矿

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Abstract:

通过对粤西云浮含铊硫化物矿渣堆放场及周边土壤剖面的铊、铅元素含量和铅同位素组成特征的研究,试图示踪土壤中原存的铊和人为影响的铊的分布状况.土壤样品采于露天的含铊硫化物工业堆渣场和一个邻近的背景土壤剖面.结果表明来自于废渣的土壤铊污染是有限的,废渣的铊主要聚集在0~16.5cm的土壤上部且不同采样点数据变化较大,随着深度增加铊污染程度降低.由于铊和铅具有相似的地球化学行为,可以采用铅同位素示踪方法研究铊在土壤中的迁移过程.

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