DOI: 10.1016/j.tecto.2020.228423
论文题名: Cenozoic multi-phase deformation in the Qilian Shan and out-of-sequence development of the northern Tibetan Plateau
作者: Li B. ; Zuza A.V. ; Chen X. ; Hu D. ; Shao Z. ; Qi B. ; Wang Z.-Z. ; Levy D.A. ; Xiong X.
刊名: Tectonophysics
ISSN: 00401951
出版年: 2020
卷: 782-783 语种: 英语
中文关键词: 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
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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170638
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
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]. Tectonophysics,2020-01-01,782-783