FABRIC AND DYNAMIC IMPLICATION OF THE DUCTILE DEFORMATION ZONE IN JIAOLUOTAGE AREA IN XINJIANG AUTONOMOUS REGION

The ductile deformation zone in Jiaoluotage area in Xinjiang Autonomous Region developed in E-W-trending Carboniferous volcanic and sedimentary formation between the Tuha Block and the Mid-Tianshan Block,and comprises a set of E-W-striking and upright penetrative foliation.The deformation features can be broadly divided into four orders in size.Fabric analysis of them indicates a symmetry of the deformation,implying an origin of symmetrical tectonic deformation.Development of many compressive structural features parallel to the major boundary shows that they may result from compression perpendicular to the deformation zone (plane).The ductile deformation zone in Jiaoluotage area is,therefore,a ductile compressed zone.