摘要
介绍了目前国外用费氏台测量斜长石组构的三种方法：（１）ＢＰＷ图解法；（２）（０１０）、（００１）双面交点法；（３）（０１０）消光角法。并分析了其适用范围及各自的优缺点。最后总结了确定斜长石组构的应用意义：（１）确定滑移系；（２）判断剪切方向；
The paper introduces three methods of measure plagioclase LPO by U stage: (1)BPW diagram; (2)two plane (010), (001); (3)(010) extinction angle .Their application ranges, qualities and defects are also discussed respectively. At last, the paper summarizes the application of plagioclase LPO: getting slide system,identifying the shear direction,calculating seismic wave velocity.
出处
《世界地质》
CAS
CSCD
1999年第1期31-38,共8页
World Geology
基金
国家自然科学基金
关键词
斜长石
晶格优选方法
岩石组构
显微测量法
plagioclase, lattice preferred orientation, middle and lower crust
