摘要
本文对衡山复式花岗岩体西缘韧性剪切带中变形岩石的磁性组构与变形组构进行了比较研究,表明岩石磁化率各向异性椭球体与应变椭球体之间有一定的对应关系,岩石的磁化率各向异性技术可望成为构造地质学的一种新手段。岩石磁性组构资料可应用于变形岩石的应变分析,特别是在没有宏观应变标志或者通常的岩石组构分析方法太费时间的情况下更显出其优越性。
The comparing study of the magnetic fabric with the deformation fabric has been made for the Western Margin ductile shear zone of Hengshan Composite Granite.The result shows that the AMS(Aniso- tropy of Magnetic Susceptibility)ellipsoids are related to the total strain ellipsoids,and therefore the AMS technique can be applied to strain analysis and structural geology.Magnetic fabric data may be applicable to the strain analysis in deformed rocks for which the stan- dard petrofabric techniques are too cursory and time-consuming,and for which thers aren't visible strain markers.
