气候变化领域集成服务门户(CCPortal): Cenozoic multi-phase deformation in the Qilian Shan and out-of-sequence development of the northern Tibetan Plateau

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DOI	10.1016/j.tecto.2020.228423
	Cenozoic multi-phase deformation in the Qilian Shan and out-of-sequence development of the northern Tibetan Plateau
	Li B.; Zuza A.V.; Chen X.; Hu D.; Shao Z.; Qi B.; Wang Z.-Z.; Levy D.A.; Xiong X.
发表日期	2020
ISSN	00401951
卷号	782-783
英文摘要	Uplift of the Tibetan Plateau and the distribution of deformation across it are the result of India-Asia collision, which bring an opportunity of understanding intracontinental tectonics in the context of continent-continent collision. The Tibetan Plateau is bound on the northern margin by the Qilian Shan thrust belt and the strike-slip Haiyuan fault. These Cenozoic fault systems play a critical role in accommodating continental convergence, yet the initiation age, deformation sequence and mechanisms of deformation are debated. In this study, integrated geologic mapping, field observations, and apatite fission track thermochronology were conducted to constrain the initiation ages of the localized thrust faults and the exhumation history of the central and northern Qilian Shan, northern Tibet. Our analyses reveal the central and northern Qilian Shan underwent rapid cooling during the Cretaceous as a result of a far-field tectonic event. In the Eocene-Oligocene, a period of thrust-related cooling occurred along the Shule Nan Shan, Tuolai Nan Shan and Tuolai Shan faults. Reactivation of the proximal thrust faults and initiation of the western segment of the Haiyuan fault occurred at ca. 16 Ma and drove final accelerated Miocene cooling and denudation to the surface. We argue that the Qilian Shan thrust belt has persisted as the stationary and internally deformed northern boundary of the Himalayan-Tibetan orogen since the early Cenozoic, involved overprinting out-of-sequence development starting by Eocene related to initiation of India-Asia collision, and the basins and ranges across the northern Tibetan Plateau have since experienced multi-phase of growth. © 2020
关键词	Cenozoic Multi-phase Northern Tibetan Plateau Out-of-sequence development Qilian Shan
英文关键词	Deformation; Fission reactions; Phosphate minerals; Apatite fission track thermochronology; Continent-continent collisions; Deformation sequences; Field observations; Geologic mapping; Northern Tibetan plateaux; Out of sequences; Phase deformation; Strike-slip faults; Cenozoic; continental collision; deformation; exhumation; fission track dating; strike-slip fault; thermochronology; thrust; uplift; China; Qilian Mountains; Qinghai-Xizang Plateau
语种	英语
来源期刊	Tectonophysics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207805
作者单位	Chinese Academy of Geological Sciences, Beijing, 100037, China; SinoProbe Center, Chinese Academy of Geological Sciences and China Geological Survey, Beijing, 100037, China; Nevada Bureau of Mines and Geology, University of Nevada, Reno, Nevada, 89557, United States; Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, 100081, China
推荐引用方式 GB/T 7714	Li B.,Zuza A.V.,Chen X.,et al. Cenozoic multi-phase deformation in the Qilian Shan and out-of-sequence development of the northern Tibetan Plateau[J],2020,782-783.
APA	Li B..,Zuza A.V..,Chen X..,Hu D..,Shao Z..,...&Xiong X..(2020).Cenozoic multi-phase deformation in the Qilian Shan and out-of-sequence development of the northern Tibetan Plateau.Tectonophysics,782-783.
MLA	Li B.,et al."Cenozoic multi-phase deformation in the Qilian Shan and out-of-sequence development of the northern Tibetan Plateau".Tectonophysics 782-783(2020).