Abstract: This paper discussed the main Mesozoic-Cenozoic tectonic-events, basin evolution, thermochronology and crustal shortening of Tian Shan and its adjacent basins.The basins of south and north Tian Shan have underwent various dynamics stages in Mesozoic-Cenozoic era. The Mesozoic-Cenozoic strata in the basins of south and north Tian Shan showed much information about tectonic e volution. Conglomeratic sedimentation of the latest Jurassic-earliest Cretaceous is consistent with the amalgamation at south margin of Eurasia block, and that of late Cenozoic is related to the India-Asia collision during late Oligocene to early Miocene. So far, the thermochronology data about Mesozoic-Cenozoic cooling events can be divided into three stages: early cretaceous, late OligoceneMiocene and after Pliocene. These thermochronology data is the direct notes of tectonics events in the latest Jurassic-earliest Cretaceous and late Cenozoic. Tian Shan rose quickly during these two periods. Sedimentologic and thermochronological information proved that Tian Shan Area was active in tectonics during the latest Jurassicearliest Cretaceous and late Cenozoic, which were the signs of transformation of basin types. Tarim basin and Junggar basin have the same evolution history: intra-continent faulteddepression basin in Jurassic, intra-continent depression basin from Cretaceous to Eocene,and Rejuvenated foreland basin form Neocene to Quaternary. The deformation of Tian Shan was propagating form west to east, which have illustrated by rate of crustal shortening, timetransgression of Xiyu Conglomerate, and GPS observations. The differential deformation of Tian Shan was related to northward extrusion of Pamir Syntaxis.

Key words: Tian Shan Area, Mesozoic-Cenozoic, basin evolution, cooling event, crustal shortening

摘要： 天山两侧中新生代盆地中的沉积记录、沉积中心展布及其迁移特征反映了盆地演化特征，天山地区的年代学数据则是构造活动的响应。这些沉积学记录、年代学记录及山前构造变形与天山地区的构造演化、天山快速隆升和区域地壳缩短相对应，反映晚侏罗世晚期—早白垩世早期、晚新生代是天山快速隆升的2个时期，也是盆地性质发生转变的重要时期。综合分析认为，天山两侧盆地早中侏罗世为陆内断陷坳陷盆地阶段，晚侏罗世—早白垩世早期盆地开始进入挤压背景下的陆内坳陷盆地阶段，晚新生代开始发育再生前陆盆地。天山晚新生代构造变形总体显示西强东弱的特点，这种变形差异可能与帕米尔构造结的向北推挤有关。

关键词: 中新生代, 盆地演化, 冷却事件, 地壳缩短, 天山