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桂东南那卜地区宁潭超单元及其围岩中 ,主期变形变质作用形成的韧性剪切带可分为 2类 :NE向右行走滑性质的韧性剪切带 ;NW向逆冲推覆性质的韧性剪切带。通过对以上 2类韧性剪切带的构造样式、显微组构以及运动学特征等的综合分析表明 ,它们形成的构造应力是NE -SW向的 ,在这一应力的作用下 ,使早期NE向和NW向构造重新活动 ,从而构成了一种NE向走滑—NW向逆冲的相互转换程式 ,即NE向右行走滑性质韧性剪切带和NW向逆冲推覆性质韧性剪切带相互转换的韧性变形体系
The ductile shear zones formed by the main deformation and metamorphism in the Ningtan super-unit and its surrounding rocks in the NaBu area of southeastern Guangxi can be divided into two types: the ductile shear zone with NE-to-right strike-slip property; the NW-trending thrust nappe The nature of the ductile shear band. The comprehensive analysis of the tectonic styles, microstructures and kinematic characteristics of the above two types of ductile shear zones shows that the tectonic stress they form is NE-SW direction. Under the action of this stress, the early NE NW-trending tectonic reactivation, thus forming a NE-strike-slip-NW-thrust reversal process, namely NE-to-right strike-slip ductile shear zone and NW-trending thrust-nappe ductile shear zone Mutual transformation of the ductile deformation system