某榴辉岩工艺矿物学及矿物快速定量方法研究  

Study on Process Mineralogy of an Eclogite and the Mineral Fast Quantitative Method

作　　者：王守敬[1,2] 卞孝东[1,2] 马驰[1,2] 

机构地区：[1]中国地质科学院郑州矿产综合利用研究所 [2]国家非金属矿资源综合利用工程技术研究中心,河南郑州450006

出　　处：《矿产保护与利用》2011年第5期24-27,共4页Conservation and Utilization of Mineral Resources

基　　金：国土资源地质调查项目(编号:1212011120303)

摘　　要：对某榴辉岩进行了详细的工艺矿物学研究。研究显示,其主要有用矿物为绿辉石、铁铝榴石、白云母和金红石,含量分别为50.6%、25.8%、14.7%、1.9%,平均粒度分别为0.23 mm、0.19 mm、0.54 mm和0.08mm。由于金红石粒度细,部分被其它矿物包裹,可能会影响其回收率。电子探针分析显示,矿石中仅有白云母含K2O,绿辉石含Na2O,铁铝榴石中FeO含量最高。单矿物分析表明白云母中K2O含量为10.02%,绿辉石中Na2O含量为7.70%,铁铝榴石中FeO含量为24.32%,可以将K2O、Na2O和FeO做为特征元素对产品中白云母、绿辉石和铁铝榴石进行快速定量。The process mineralogy study on an eclogite ore had been done.The results showed that the main useful minerals were omphacite,almandine,muscovite,rutile and so on.Their mineral content were 50.6%,25.8%,14.7%,1.9% respectively,and their mean grain sizes were 0.23 mm,0.19 mm,0.54 mm,0.08 mm respectively.Because of the rutile with slender grain size and bound up by others mineral,its recovery may be affected during the mineral separation.The result of X-ray microanalysis showed that only muscovite contains K2O,meanwhile only omphacite contains Na2O,and FeO contained in almandine was highest in all the minerals of the eclogite.The result of individual mineral analyses showed that K2O content of muscovite was 10.02%,Na2O content of omphacite was 7.70%,and FeO content of almandine was 24.32%.The K2O,Na2O and FeO could be the eigen-element to quantify the content of omphacite,almandine and muscovite in a product of the mineral separation.

关 键 词：榴辉岩 工艺矿物学 绿辉石 铁铝榴石 白云母 金红石 矿物快速定量方法 

分 类 号：P588.34[天文地球—岩石学]