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初步构造变形分析表明 ,柴北缘锡铁山地区的早古生代变质火山岩系 -滩间山群在加里东期碰撞造山过程中经历了两期构造变形 :第一期为垂直造山带的挤压缩短变形 ,形成一系列紧闭褶皱、区域片理和大型韧性剪切带 ;第二期为平行造山带的挤压缩短变形 ,形成区域透入性共轭破劈理或膝折带。这两期变形是柴北缘加里东期碰撞造山带的斜向碰撞造山过程中不同阶段变形特征的体现。这种构造型式可能对于认识斜向碰撞造山带的构造动力学的转换过程具有重要意义。
Preliminary tectonic deformation analysis shows that the Early Paleozoic metamorphic volcanic series - Tanmian Mountain Group experienced two stages of structural deformation during the Caledonian collision orogeny. The first stage was the compression and shortening deformation of the vertical orogenic belt , Forming a series of tight fold, regional management and large ductile shear zone; the second phase of the parallel orogenic compression shortened deformation, the formation of regional penetration conjugate broken cleft or knee zone. These two phases of deformation are the characteristics of deformation at different stages in the process of oblique collision orogeny in the Caledonian collision orogen of the northern margin of the Qaam. This type of tectonics may be of great significance for understanding the structural dynamics of the diagonal strike orogenic belt.