铊的分布、存在形式与环境危害
DISTRIBUTION AND OCCURRING FORMS OF THALLIUM AND ITS POTENTIAL DAMAGE TO THE ENVIRONMENTS
查看参考文献44篇
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文摘
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铊(Tl)是一种分散元素,Tl在变质岩中的平均含量一般为0.65 μg/g,在沉积岩中的含量一般为0.1～3.0 μg/g,而在火山岩中含量一般为0.05～1.5 μg/g,但在花岗岩中可达到3.2 μg/g.Tl的显著矿化特征就是在硫化物矿床中形成Tl-As-Hg-Sb-S元素共生组合.迄今为止有报道发现的Tl矿物有53种,其中多数为Tl的硫化物矿物和硫盐矿物,在表生地球化学作用下Tl很容易被释放出来,而成为一种潜在的环境危害. |
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其他语种文摘
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Thallium (Tl) is a toxic metal that is widely distributed and dispersed in natural environments. The average concentrations of Tl in metamorphic rocks are 0.65 j^g/g; 0.1-3.0 fig/g in sedimentary rocks, and 0.05 - 1.5 fxg/g in igneous rocks, against a higher value of up to 3.2 ptg/g in granites. The typical mineralization characteristics of Tl are reflected by the formation of Tl-As-Hg-Sb-S association in sulfide deposits. There are a total of 54 Tl-bearing minerals already identified in the world, and most of them are Tl-sulfide minerals and Tl-sulfosalt minerals. Thallium is easy to release in the process of supergene geochemistry and would become a potential damage to the environment. |
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来源
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矿物学报
,2005,25(3):230-236 【核心库】
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关键词
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铊
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矿化
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铊矿物
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环境危害
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地址
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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
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山东省地质科学实验研究院, 山东, 济南, 250013
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-4734 |
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学科
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地质学;环境科学基础理论 |
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基金
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国家自然科学基金项目
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文献收藏号
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CSCD:2020695
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