摘要
介绍一种在费氏台上由一个光率体定位与实测双晶轴相结合的改进双晶法。该法与以往方法相比,测试精度和测试效率都有较大提高,测试步骤相对减少。该法的运用,在一定程度上解决了多年来采用双晶法测试中酸性斜长石中的一些问题。
This paper Introduces an improved twin operation method by meansof an indicatrix symmetry axis orientation in combination with a measuredtwin axis.This method can solve a difficult problem how to increaseprecision of measurement of intermediate-acid plagioclase.
关键词
斜长石
成分
双晶法
测定
结构态
plagioclase
twin operation method
determination
measurement of universal stage
indicatrix orientation
