Detrital apatite fission track constraints on Cenozoic tectonic evolution of the northeastern Qinghai-Tibet Plateau, China： Evidence from Cenozoic strata in Lulehe section, Northern Qaidam Basin

作     者：DU Ding-ding ZHANG Cheng-jun MUGHAL Muhammad Saleem WANG Xiao-yu BLAISE Dembele GAO Jun-ping MA Yuan LUO Xin-rong 

作者机构：School of Earth Sciences and Mineral Resources Lanzhou University Lanzhou 730000 China Key Laboratory of Western China's Mineral Resources of Gansu Prouince Lanzhou 730000 China Institute of Geology University of Azad Jammu and Kashmir Muzaffarabad 13100 Pakistan 

出 版 物：《Journal of Mountain Science》 (山地科学学报（英文）)

年 卷 期：2018年第15卷第3期

页      面：532-547页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 081803[工学-地质工程] 07[理学] 08[工学] 0303[法学-社会学] 070904[理学-构造地质学] 0708[理学-地球物理学] 0818[工学-地质资源与地质工程] 0705[理学-地理学] 0815[工学-水利工程] 0706[理学-大气科学] 0816[工学-测绘科学与技术] 0813[工学-建筑学] 0704[理学-天文学] 0833[工学-城乡规划学] 0713[理学-生态学] 0834[工学-风景园林学（可授工学、农学学位）] 

基　　金：funded by the Natural Science Foundation of China (Grants No. 41501209 and 41571177) the Fundamental Research Funds for the Central Universities (862457, lzujbky-2016-22) 

主　　题：Northern Qaidam Basin Apatite Fission-Track Tectonic evolution Provenance analysis 

摘      要：The Northern Qaidam Basin is located at the northeastern part of the Qinghai-Tibetan Plateau. It contains very thick Cenozoic terrestrial clastic sediments, which records the formation of the northern Qaidam Basin due to compressional deformation during the Indo-Asian collision. In this paper, we used detrital apatite fission-track thermochronology, including 4 sandstones and 2 conglomerates samples from the Lulehe section, to reveal the Cenozoic evolution of the northern Qaidam Basin. Fission-track dating indicated the source region of the Lulehe section has experiencedimportant cooling and uplifting in the Late Cretaceous(at ~85.1 Ma and ~65 Ma) and the Eocene(~52 Ma), respectively. The AFT age distribution on the section suggested that the provenance of Lulehe section sediments were mainly derived from the south Qilian Shan(Qilian Mountains) and Altun Shan(Altun Mountains), and two significantly provenance changes may occur at 43.4-46.1 Ma and ~37.8 Ma, respectively. The results may have strong constrains on the Cenozoic deformation and tectonic evolution of the northern Qaidam Basin and Qinghai-Tibet Plateau.