摘要
闪锌矿中的铁包括结构铁和以六配位形式存在的出溶铁，本文提出了应用Ｘ射线衍射测定闪锌矿中结构铁质量分数的新方法。通过对一系列不同结构铁质量分数闪锌矿的主要衍射线强度的理论计算发现，随着闪锌矿中结构铁质量分数的增加，其主要衍射线强度比值Ｉ（００２）／Ｉ（１１１），Ｉ（１３３）／Ｉ（１１１），Ｉ（１３３）／Ｉ（１１３）和Ｉ（００２）／Ｉ（１１３）逐渐递减，尤以Ｉ（００２）／Ｉ（１１３）比值递减最为明显，两者几乎呈线性负相关。利用该原理对国内典型铅锌矿床中闪锌矿的结构铁质量分数进行了测定，并与化学分析结果进行对比。
Iron in sphalerite include structural iron and exsolvent iron.A new method for determining structural iron mass fraction in sphalerite by using Xray diffraction is suggested.According to theoretical calculation of intensity of main Xray diffraction lines of sphalerite with a series of structural iron mass fraction,we discovered that the ratio of intensity of Xray diffraction lines(I(002)/I(111),I(113)/I(111),I(133)/I(113),I(002)/I(113))decrease successively with the increasement of structural iron mass fraction in sphalerite.Especially,the ratio I(002)/I(113) decrease obviously.The ratio of intensity and iron mass fraction present a linear negative correlation.According to this principle,we also tested structural iron mass fraction of sphelerite in typical PbZn deposite in China,and compared with results of chemical analysis.
出处
《矿物岩石》
CAS
CSCD
北大核心
1998年第2期31-34,共4页
Mineralogy and Petrology
基金
国家自然科学基金
关键词
闪锌矿
结构铁
X射线衍射
定量分析
sphalerite structural iron Xray diffraction intensity ratio of Xray diffraction lines quantitative analysisSynopsis of the first author Lin Jinhui,male,32 years old,Lecturer,M Sc of Mineralogy with Chengdu University of Technology.Now he is en
