| 长株潭近地表大气尘矿物特征及环境指示意义 |
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| 引用本文： | 赵晓斌,张广平,吴堑虹.长株潭近地表大气尘矿物特征及环境指示意义[J].四川地质学报,2013(2):189-191. |
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| 作者姓名： | 赵晓斌 张广平 吴堑虹 |
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| 作者单位： | [1]河南省地质矿产勘查开发局测绘队,郑州450006 [2]中南大学地学与环境工程学院,长沙410083 |
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| 摘 要： | 通过X射线粉末衍射(XRD)、扫描电镜/能谱(SEM/EDX)方法对长沙、株洲和湘潭(以下简称长株潭)地区近地表大气尘中矿物成份进行分析研究,结果显示大气尘中含有石英、石膏、方解石、白云石、硫酸镉等23种自然矿物,还含有SiS2、Cadmium Arsenide(Cd3As2)、RhZn、Cr2Nb、NiTi、HfMo2等14种非自然矿物;近地表大气尘矿物形貌特征显示Cd元素主要富集在有矿物颗粒的地方,且呈近浸染状分布,能谱半定量分析,Cd含量可达4%,表明Cd易被吸附在矿物表面。分析长株潭地区大气尘中矿物成份、空间分布特征及其来源,对长株潭城市一体化具有及其重要的环境指导意义。
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| 关 键 词： | 大气尘 环境指示 X—射线衍射 长株潭地区 |
Mineralogical Characteristics of Atmospheric Dust and Their Environmental Significance in the ChangshaZhuzhou-Xiangtan Region |
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| ZHAO Xiao-bin,ZHANG Guang-ping,WU Qian-hong.Mineralogical Characteristics of Atmospheric Dust and Their Environmental Significance in the ChangshaZhuzhou-Xiangtan Region[J].Acta Geologica Sichuan,2013(2):189-191. |
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| Authors: | ZHAO Xiao-bin ZHANG Guang-ping WU Qian-hong |
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| Institution: | 1-Henan General Institute of Surveying and Mapping of Geology, Zhengzhou 450006; 2-School of Geosciences and Environment Engineering, Central South University, Changsha 410083) |
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| Abstract: | Study of XRD and SEM/EDX indicates that atmospheric dust in the Changsha-Zhuzhou- Xiangtan region contains 23 natural minerals such as quartz, gypsum, calcite, dolomite, cadmium sulfate and so on as well as 14 synthetic crystals such as SIS2, Cadmium Arsenide（Cd3As2）, RhZn, Cr2Nb, NiTi, HfMo2. Element Cd with a content ofuo to 4% is mainly adsorbed on above-mentioned minerals. |
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| Keywords: | Changsha-Zhuzhou-Xiangtan atmospheric dust environmental indicator mineralogical characteristic X-ray diffraction |
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