变差系数法在伊/蒙混层矿物混层有序性判断中的应用  

Coefficient of variation and its application in orderliness judgment of illite-montmorillonite mixed-layer mineral

作　　者：徐博会[1] 丁述理[1] 

机构地区：[1]河北工程大学资源学院,河北邯郸056038

出　　处：《河北工程大学学报（自然科学版）》2009年第2期59-61,共3页Journal of Hebei University of Engineering:Natural Science Edition

基　　金：河北省自然基金项目(D2007000695;D2009000833)

摘　　要：基于数理统计理论,利用变差系数对伊/蒙混层矿物的混层结构有序性进行判断。通过对样品进行X射线衍射测试,获得各个样品中伊/蒙混层矿物的特征峰值,并将所得数据作为统计对象,采用变差系数法对所得数据进行统计计算。结果表明6个样品的变差系数均小于0.75,据此可判断所有样品中伊/蒙混层矿物的混层结构为规则混层结构。与采用间隔层数法相比,差异系数法可以较为快捷而准确的判断伊/蒙混层矿物的混层有序性。Order structure of illite - montmoriUonite mixed - layer mineral was judged by coefficient of variation, based on mathematical statistics theory. Through the X - ray diffraction, characteristic peak height of illite - montmorillonite mixed - layer mineral was obtained. Being statistical object, these data were progressed in statistical calculation by coefficient of variation method. It was shown that coemeient of variation of 6 samples was below 0.75. Mixed - layer structure of illite - montmorillonite in all samples was regular mixed - layer. Difference coefficient method is rapid and accurate for the judgement of orderliness of illite - montrnorillonite mixed - layer mineral, compared with interval coefficient method.

关 键 词：伊/蒙混层 变差系数 有序性 

分 类 号：P578[天文地球—矿物学]