摘要
本文对灞源地区不同时代的韧性剪切带的运动学、动力学特征进行了研究。笔者认为,前人所称的部分太华群(Arth_3b)是太古宙末期太华群韧性变形的产物;张家坪花岗岩以左旋螺旋式上升侵位;燕山期,多期活动韧性剪切带是本区金矿形成富集的主要原因之一。
The Kinematic and dynamic characteristics of the ductile shear zones of different times in the Bayuan area are discussed in this paper. The authors believe that part of the Taihua Group (Arthb3b) named by predecessors is due to ductile deformation of Taihua Group in the end Archean. The Zhangjiaping granite was intruded by a sinistral uprising. The polyphasic ductile shear zones are one of the main reasons for the formation and enrichment of gold ore in the Yenshanian.
关键词
灞源
韧性剪切带
地质意义
Bayuan, Ductile shear zones, Archean, Geological significance
