矿山环境地表水系的硫同位素研究——以贵州赫章后河为例  

Sulfur Isotopic Geochemistry of the Water System in Mine Area:A Case Study of the Hou River in Hezhang County,Guizhou,China

作　　者：吴攀[1] 刘丛强[2] 张国平[2] 朱立军[1] 杨元根[2] 

机构地区：[1]贵州大学喀斯特环境与地质灾害防治教育部重点实验室,贵阳550003 [2]中国科学院地球化学研究所环境地球化学国家重点实验室,贵阳550002

出　　处：《矿物岩石地球化学通报》2007年第3期224-227,共4页Bulletin of Mineralogy, Petrology and Geochemistry

基　　金：中国科学院知识创新工程项目(KZCX2-105);国家自然科学基金资助项目(40663001)

摘　　要：为更好地了解矿山环境中元素迁移释放的地球化学过程,本文研究了赫章后河地表水系硫酸根和沉积物中的硫同位素组成。结果发现,水体和沉积物中硫同位素组成差异较大,不同水体中SO42-的浓度与δ34S值之间有较好的相关性,主河道水体和沉积物中的硫主要来自矿业活动的释放。水体中硫同位素组成不仅能反映水体的受污染情况和污染水体的扩散范围,还能反映沉积物中硫化物氧化作用的地球化学过程。In order to better understand the geochemical processes of transportation and release of elements in mine area,sulfur isotopic compositions of the dissolved sulfate and bed sediments in Hou River water system in Hezhang County have been investigated in this study.The results show that the sulfur isotopic compositions in water are obviously different from those of the sediment.There is a good correlation between the δ34S values and SO4^2- contents in different water samples.It is believed that the sulfur in river water and sediments was mainly come from the sulfur released by the mining activities.It is also indicated that sulfur isotopic compositions of the dissolved sulfate in water and bed sediments not only can reflect the water pollution degree and its diffusing distance or/and range of the polluted water,but also can show the geochemical processes of the oxidation of sulfides in sediments.

关 键 词：硫同位素 地表水系 矿山环境 

分 类 号：P641.46[天文地球—地质矿产勘探]