地质填图中花岗岩的构造分析

STRUCTURAL ANALYSES OF GRANITES DURING GEOLOGICAL MAPPING

本文简要介绍花岗岩构造分析的基本概念和野外工作方法,阐述流动组构和变形组构的区别,并以实例说明花岗岩构造分析的地质意义。

This paper gives a brief introduction about the concepts and field resea- rch method of structural analyses of granites,presents some of the most use- ful criteria for distinction between flow fabric and deformed fabric,and indi- cates the geologicai significance of strain analyses with an example.It is undoubtedly very important to integrate structural analyses with petrological and geochemical studies in order to gain a more comprehensive understand- ing of granites as a chemical systems and also as a physical system.