Depositional characteristics of the Hefei Basin indicated a good coupling with evolution of the Tan-Lu fault zone to the east of the basin. The structural pattern of the pre-Jurassic basement and Jurassic sedimentation revealed that the basin developing was controlled by, in addition to the Dabie orogen, the syn-orogenic sinistral transform strike-slip movement of the Tan-Lu fault zone. The Early Cretaceous Zhuxiang Formation showed the deposition being responses to intracontinental sinistral strike-slip movement of the fault zone, and a model of strike-slip flexure basin was proposed for development of the basin during this period. The Upper Cretaceous to Eogene sediments recorded an extensional activity along the Tan-Lu fault zone, during that time the basin was influenced by regional and intra-basinal extensions. The appearance of uplifting, closure and inversion structures on the eastern part of the basin during Neogene demonstrated that the thrusting occurred along the Tan-Lu fault zone. To synthesize the recent data of structural geology and isotopic datings from the fault zone, four evolutional stages of the Tan-Lu fault zone could be summarized, i.e. the synorogenic sinistral transform strike-slip movement in Jurassic, the early Early Cretaceous intracontinental left-lateral displacement, the extension from Late Cretaceous to Eogene and thrusting during Neogene.
Liu Guosheng,Zhu Guang,Niu Manlan et al. MESO-CENOZOIC EVOLUTION OF THE HEFEI BASIN (EASTERN PART) AND ITS RESPONSE TO ACTIVITIES OF THE TAN-LU FAULT ZONE[J]. Chinese Journal of Geology, 2006, (2): 256-269.