前言地球本身就是一个应力场,赋存在地壳內的任何岩石及矿物都受到应力的作用,不过,应力效应有的明显,有的隐约。例如,我们经常见到的花岗岩,具花岗结构和块状构造,应力似乎对它并未起显著作用,可是,片麻状花岗岩的情况就不同了,它有明显的应力效应,产生片麻状构造。据此,我们称它为受应力作用的花岗岩,或广义的变质花岗岩。对于那些在岩浆固结过程中尚未完全固结之前,因受应力作用而形成的片麻状花岗岩及条 Foreword The Earth itself is a stress field, and any rocks and minerals present in the earth’s crust are stressed. However, the stress effect is obvious and some vague. For example, we often see the granite, granite and block structure, the stress does not seem to have played a significant role in it, but the gneissic granite is different, it has obvious stress effects, resulting in flax Like structure. According to this, we call it stress-bearing granite, or broad metamorphic granite. For those who have not yet been fully consolidated in the magma consolidation process, due to stress caused by the formation of gneissic granite and Article