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| 黔西南Au-As-Hg-Tl矿化区毒害金属元素的水地球化学 | |
| 引用本文： | 肖唐付,洪业汤,郑宝山,洪冰,Dan Boyle,Jayanta Guha.黔西南Au-As-Hg-Tl矿化区毒害金属元素的水地球化学[J].地球化学,2000,29(6):571-577. |
| 作者姓名： | 肖唐付 洪业汤 郑宝山 洪冰 Dan Boyle Jayanta Guha |
| 作者单位： | 1. 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,贵州,贵阳,550002 2. Mineral Resources Division,Geological Survey of Canada, Ottawa, Canada, K1A 0E8 3. Science de la Terre, Université du Québec á Chieoutimi, Québec, Canada, G7H 2B1 |
| 基金项目： | 加拿大国际开发署资助项目!(CIDA01-282/19156) |
| 摘 要： | 研究了黔西南典型Ａｕ－Ａｓ－Ｈｇ－Ｔｌ矿化区内毒害金属元素在采矿活动和自然状态影响下的水地球化学特征及其环境效应。结果表明，已开采的Ｈｇ－Ｔｌ矿区地下水和地表水中均有很高的毒害金属元素，煤采区地下水中亦表现出类似的特征，而Ｈｇ－Ｔｌ矿区外围地下水中金属元素保持在较低的水平。Ｈｇ－Ｔｌ矿区地素水中Ａｓ和Ｔｌ的分布模式表明，其含量的变化受矿区地下水排泄和尾矿淋滤作用的控制。在尚未开采的金矿区，浅层地下 |
| 关 键 词： | 水地球化学 毒害金属元素 贵州 金 砷 汞 矿化区 |
| 文章编号： | 0379-1726(2000)06-0571-07 |
| 修稿时间： | 2000年1月2日 |
Hydrogeochemistry of toxic metal elements in an Au-As-Hg-Tl mineralised area in Southwest Guizhou |
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| XIAO Tang-fu,HONG Ye-tang,ZHENG Bao-shan,HONG Bing,Dan Boyle,Jayanta Guha.Hydrogeochemistry of toxic metal elements in an Au-As-Hg-Tl mineralised area in Southwest Guizhou[J].Geochimica,2000,29(6):571-577. | |
| Authors: | XIAO Tang-fu HONG Ye-tang ZHENG Bao-shan HONG Bing Dan Boyle Jayanta Guha |
| Abstract: | Hydrogeochemistry and environmental effect of toxic metal elements have been studied related to both the mining activities and natural processes in a typical Au-As-Hg-Tl mineralized area in Southwest Guizhou Province. The results show high levels of toxic metal elements in both groundwater and surface stream water in the Lanmuchang Hg-Tl mineralised area and low concentrations in groundwater away from the mineralised area. High enrichment of metals was also detected in groundwater in the coal-mining areas. The dispersion of arsenic and thallium in surface stream water around the Hg-Tl mining area indicates that the concentration changes of As and Tl are controlled by the seepage of groundwater and the leaching of tailings from the mining area. On the contrary, no obvious enrichment of metals in shallow groundwater was found in the unmined Yanshang gold mineralised area. This may indicate that the natural process in the unmined area does not propose a hazard to the aquatic environment so far. It is demonstrated that the disturbed groundwater and the exposure of tailings related to mining activities are the main sources for the anomalous levels of toxic metal elements in the aquatic system, and that the hydrogeochemistry is a good approach for implicating the environmental impacts related to mining activities. |
| Keywords: | hydrogeochemistry toxic metal elements thallium mining activity Guizhou Province |
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