| Abstract: | Based on the sedimentary and subsiding features of Kuqa foreland basin, this paper presents the followingcharacteristics of Neogene coupling relationship between Kuqa Basin and Southern Tien Shan Orogen, Northwestern China:(1) The Southern Tien Shan Orogen underwent Neogene uplifting of 4 km in height and the Kuqa Basin underwent Neogenesubsidence of 4-6 km in depth accordingly beginning in 25 Ma; (2) The Southern Tien Shan Orogen moved continuouslytoward the Kuqa Basin, with largest structural shortening rate of greater than 53.7%, and the north boundary of the KuqaBasin retreated continuously southward accordingly since the Miocene; (3) There are two subsidence centers with highsubsiding rates and large subsiding extent, located in the eastern and western Kuqa Basin respectively, with the subsidingmaximizing in the deposition period of Kuqa Formation. |
