| X射线粉晶衍射仪在千枚岩鉴定与分类中的应用 |
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| 引用本文： | 迟广成,肖刚,陈英丽,伍月,胡建飞,王海娇,岳明新,王鑫.X射线粉晶衍射仪在千枚岩鉴定与分类中的应用[J].地质与资源,2013,22(5):409-414,434. |
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| 作者姓名： | 迟广成 肖刚 陈英丽 伍月 胡建飞 王海娇 岳明新 王鑫 |
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| 作者单位： | 沈阳地质矿产研究所/中国地质调查局 沈阳地质调查中心, 辽宁 沈阳 110032 |
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| 基金项目： | 国土资源部“变质岩岩石矿物鉴定现代检测技术研究”项目（201011029-3）资助. |
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| 摘 要： | 以往千枚岩是依据显微镜下观察岩石结构构造及矿物成分进行分类定名.实际上千枚岩中鳞片状绿泥石和黑云母以及微粒石英、钾长石和斜长石在岩石薄片中区分十分困难.为了准确鉴定千枚岩中鳞片状和微粒状造岩矿物种类及其相对含量,利用X射线粉晶衍射半定量技术对19件千枚岩岩石进行分析测试.研究结果显示:利用云母、绿泥石、石英、钾长石和斜长石等造岩矿物X射线衍射峰的明显差异,结合X射线衍射全谱拟合半定量分析测试技术,能快速检测云母、绿泥石、石英、钾长石和斜长石等造岩矿物种类与含量.实践证明,将千枚岩岩石野外观察、岩石薄片鉴定和X射线粉晶衍射技术紧密结合起来,才能准确定出千枚岩岩石的名称.
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| 关 键 词： | 千枚岩 岩石薄片鉴定 X射线衍射分析 分类命名 |
| 收稿时间： | 2013-04-12 |
APPLICATION OF X-RAY POWDER DIFFRACTOMETER IN THE IDENTIFICATION AND CLASSIFICATION OF PHYLLITE |
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| CHI Guang-cheng,XIAO Gang,CHEN Ying-li,WU Yue,HU Jian-fei,WANG Hai-jiao,YUE Ming-xin,WANG Xin.APPLICATION OF X-RAY POWDER DIFFRACTOMETER IN THE IDENTIFICATION AND CLASSIFICATION OF PHYLLITE[J].Geology and Resources,2013,22(5):409-414,434. |
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| Authors: | CHI Guang-cheng XIAO Gang CHEN Ying-li WU Yue HU Jian-fei WANG Hai-jiao YUE Ming-xin WANG Xin |
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| Institution: | Shenyang Institute of Geology and Mineral Resources, CGS, Shenyang 110032, China |
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| Abstract: | Phyllite is traditionally classified and defined based on the microscopic observation of rock structure and mineral composition.Actually,it is quite difficult to distinguish the scaly chlorite from biotite,and microgranular quartz and K-feldspar from plagioclase in the slices of phyllite.In order to accurately identify the scaly and microgranular rockforming minerals and their relative contents in phyllite,the semi-quantitative technique of X-ray powder diffraction is adopted to analyze 19 pieces of phyllite samples.The results show that,by the obvious differences of X-ray diffraction （XRD） peaks between mica,chlorite,quartz,K-feldspar and plagioclase,in combination with the X-ray diffraction spectrum fitting technique,the minerals and their contents can be quickly detected.Practice has proved that the integrated application of field observation,slice identification and X-ray powder diffraction will determine the accurate name of phyllite. |
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| Keywords: | phyllite microscopic identification X-ray diffraction analysis classification and definition |
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