摘要
基于长沙、株洲和湘潭地区大气尘(可吸入颗粒和近地表积尘)和表层土壤的X-射线衍射(XRD)分析数据,采用微量相鉴定方法获得的结果显示,大气尘和表层土壤中包含石英、石膏、方解石、白云石、硫酸镉等自然矿物及SiS_2、NiTi、Cd_3As_2、FeOCl等非自然源晶体。比较了长沙、株洲、湘潭地区大气尘与表层土壤的晶体组成,分析了大气尘矿物及非自然源晶体的空间分布,探讨了其环境指示意义。
X-ray diffraction analysis and trace phase identification were performed on the atmospheric dust （inhalable particles and near-surface dust） and topsoils in Changsha, Xiangtan and Zhuzhou. The resttlts show that the atmospheric dust and topsoils contain natural minerals （crystals） such as quartz, gypsum, calcite, dolomite and cadmium sulfate and synthetic crystals such as SIS2, NiTi, Cd3Ah and FeOC1. The authors compared the mineral components in the atmospheric dust and topsoils of the three cities and ana- lyzed the spatial distributions of natural minerals and synthetic crystals in the atmospheric dust. Finally, the significance of natural minerals and synthetic crystals in atmospheric dust for indicating the environment is discussed.
出处
《地质通报》
CAS
CSCD
北大核心
2007年第11期1459-1462,共4页
Geological Bulletin of China
基金
中国地质调查局地质调查项目(编号:200401204)
国家自然科学基金项目(编号:40473029)资助
关键词
长沙市
大气尘
土壤
自然矿物晶体
非自然源晶体
X-射线衍射
Changsha City
atmospheric dust
soil
naturally occurring mineral crystal
synthetic crystal
X-ray diffraction
