安徽香泉独立铊矿床中含铊黄铁矿的X衍射研究及其矿物学意义  

XRD analysis and mineralogical significance of Tl-bearing pyrite in Xiangquan independent thallium deposit

作　　者：范裕[1] 袁峰[1] 张千明[2] 吴明安[3] 侯明金[3] 胡清华[2] 

机构地区：[1]合肥工业大学资源与环境工程学院,安徽合肥230009 [2]安徽省地矿局327地质队,安徽合肥230001 [3]安徽省地质调查院,安徽合肥230001

出　　处：《合肥工业大学学报（自然科学版）》2008年第7期995-999,共5页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(40672062,40272048);高等学校博士学科点科研基金资助项目(20050359013);安徽省优秀青年科技基金资助项目(04045063)

摘　　要：文章对香泉独立铊矿床中7件含铊黄铁矿进行X射线分析,结果表明,含铊黄铁矿的X射线特征衍射峰和强度相对标准黄铁矿均发生变化,表现为衍射线宽化,晶胞参数变大;黄铁矿的晶胞参数与黄铁矿中铊含量有明显的正相关关系,证实铊在黄铁矿中有2种赋存状态,铊主要以类质同象形式替代铁进入黄铁矿晶格,其次以微细铊矿物包裹体形式产出。Based on the XRD data of seven Tl-bearing pyrites from the Xiangquan independent thallium deposit in the northeastern margin of the Yangtze block, eastern China, it is found that the Tl-bearing pyrite＇s diffraction peak and diffraction line have changed in comparison with the normal pyrite. The diffraction line is wider and the crystal parameter is larger. The thallium content and the crystal parameter have positive relationship. The XRD results show that most of thallium is in the crystal lattice of pyrite and the remainder occurs as tiny individual grains in pyrite.

关 键 词：X射线衍射 含铊黄铁矿 香泉铊矿床 

分 类 号：P578[天文地球—矿物学] P618.88[天文地球—地质学]