红外吸收光谱是鉴定云母族矿物的有效方法之一。通过云母红外光谱的分析,能够深入了解类质同像的取代关系。本文将叙述白云母-多硅白云母系列中,类质同像置换的红外吸收特征在矿物学和地质学方面的应用。实验所用样品中有五个采自河南信阳变质带,7个样品采自西藏喜马拉雅变质带、雅鲁藏布江变质带和嘉玉桥变质带,还有4个伟晶岩型的样品。红外光谱的样品制备,是采用通常的固体钾-溴压片法,仪器为IR-450型红外光谱仪。单位分子式中离子数的计算结果列于表1,表2列出所获得的红外吸收频率(厘米~(-1))。 Infrared absorption spectroscopy is one of the effective methods to identify mica minerals. Through the analysis of mica infrared spectroscopy, we can understand the relationship of the isomorphism. This article will describe the application of the isotopic substitution of the infrared absorption features in the muscovite and geology in the muscovite-polysilicone series. Five samples were collected from the Xinyang metamorphic belt in Henan Province, seven samples were collected from the Tibet Himalayan metamorphic belt, the Brahmaputra metamorphic belt and the Jiayuqiao metamorphic belt, and four pegmatite samples. The sample preparation of the infrared spectroscopy is the usual solid potassium-bromine method. The instrument is IR-450 type infrared spectrometer. The calculation results of the number of ions in the unit formula are shown in Table 1, and Table 2 shows the infrared absorption frequency (cm -1) obtained.