变形岩石的超声波研究

岩石的结构、构造往往具有不均一性，因而表现出物理力学性质的各向异性。超声波技术就是通过研究岩石的各向异性来了解岩石的构造变形特征和微观构造。本文论述了这一方法的基本原理，介绍了检测方法，探讨了如何应用此法来确定主应变轴的空间方位和划分不同构造变形期次、确定岩石中微孔隙的排列方位和矿物定向组构、恢复古构造应力汤、区分原生和次生各向异性等。

ULTRA-SOUND STUDY OF DEFORMATION ROCKS

The texture and structure of rocks are often inhomogeneous and thus dis-play anisotropy of physical and mechanical properties.Ultra-sound techniques can be usedto recognize the rock structural deformation characteristics and microstructure throughstudy of their anisotropy.This paper discusses the basic principles of the method,explain-ing techniques for examination and measurement.The author further inquires into how touse the method to determine the space orientation of the principal strain axis and the ar-rangement of microvoid and mineral-oriented fabric in rocks,to recover the paleostructuralstress field and to distinguish between primary and secondary anisotropy.