论文部分内容阅读
在泛非造山运动期间，巴西东北的Ｂｏｒｂｏｒｅｍａ发生了大陆尺度的剪切带系统。该系统包括走向ＮＥ和走向ＥＷ的韧性走滑剪切带。遥感工作和构造填图已经揭示了这种弧形网结走滑剪切带，该带与由未变形的物质形成的Ｓ型透镜体分离而位于走向ＥＷ的Ｐａｔｏｓ剪切带西侧尽头，它是这个地区最大的剪切带之一。这个叠瓦状剪切带构造最初是在高温变形条件下形成的。它可以解释成一个韧性走滑双重体，代表了响应巨型韧性剪切带的弯曲而发生应变调节的运动学样式
During the Pan-African orogeny, a continental-scale shear zone system occurred in Borborema, northeastern Brazil. The system includes a ductile strike-slip shear zone that goes to the NE and to the EW. Remote sensing and tectonic mapping have revealed this arcuate network strike-slip shear band, separated from the S-shaped lens body of undeformed material and located at the western end of the Patos shear band towards EW, which Is one of the largest shear zones in the area. This imbricate shear zone structure was originally formed under high temperature deformation conditions. It can be interpreted as a ductile slippery dual body that represents the kinematic style of strain adjustment that responds to the bending of a giant ductile shear band