Abstract: Based on the interpretation of 3D seismic data, the differential deformation characteristics of faults in Yakela fault-salient were studied and the controlling factors were discussed.Controlled by the thick mudstone of the Cretaceous and gypsum rocks of the Jidike Formation, the development of different faults is observed in different in vertical domains.Large basement involved thrust faults were developed in the lower structural section.Echelon-distributed extensional-shear faults were developed in the middle structural section.Capping-sliding faults were developed in the upper structural layers.The intensity of fault deformation gradually decreased from bottom to top.Formation of the faults experienced 4 critical stages:thrust faults development stage in late Paleozoic, thrust faults rejuvenation stage in Mesozoic, extensional-shear faults development stage in early Neogene and capping-sliding faults development stage in late Neogene.The late Paleozoic thrusting was largely related to the collision between the Tarim continental block and the peripheral terrains due to the closing of the North Kunlun Ocean at the end of the early Ordovician, followed by the closing of the South Tienshan Ocean at the end of Permian.The fault activities in Mesozoic and Cenozoic were the tectonic response of the far-field effect of the India-Eurasia collision.

Key words: differential structural deformation, fault structure, Yakela fault-salient, Tarim Basin