论文部分内容阅读
本文采用双变法测定了花岗岩、片麻岩中一批低温斜长石的折光率色散曲线,总结有以下几个特征: 1.斜长石的折光率色散曲线特征与其主要成份无关,甚至An差值在20以上,只要在相似的生成条件与相近的生成年代,折光率色散曲线具有相互近于平行的特点。 2.地质年龄不同的斜长石,折光率色散曲线特征不同。 3.地质年龄相以、构造条件不同,折光率色散曲线不同。
In this paper, the refractive index dispersion curves of a group of low-temperature plagioclase in granite and gneiss are determined by double-change method, and the following characteristics are summarized: 1. The refractive index dispersion curve of plagioclase has nothing to do with its main components, Values above 20, as long as the similar generation conditions and the generation of similar generations, the refractive index dispersion curve with the characteristics of close to parallel with each other. 2. Geologists of different ages plagioclase, refractive index dispersion curve characteristics. 3. Geological age phase, the different tectonic conditions, refractive index dispersion curve is different.