globalchange  > 气候变化与战略
DOI: 10.1016/j.tecto.2019.228279
论文题名:
Middle-late Miocene rapid exhumation of the southern Qilian Shan and implications for propagation of the Tibetan Plateau
作者: Meng Q.; Song C.; Nie J.; Liu C.; He P.; Liu F.; Li L.
刊名: Tectonophysics
ISSN: 00401951
出版年: 2020
卷: 774
语种: 英语
中文关键词: (U-Th)/He thermochronology ; Cenozoic ; Qilian Shan ; Rapid exhumation ; Tibetan Plateau
英文关键词: Phosphate minerals ; Tectonics ; Cenozoic ; Qilian Shan ; Rapid exhumation ; Thermochronology ; Tibetan Plateau ; Deformation ; Cenozoic ; deformation ; exhumation ; helium isotope ; tectonic evolution ; thermochronology ; uplift ; uranium series dating ; China ; Qilian Mountains ; Qinghai-Xizang Plateau
英文摘要: The northeastern Tibetan Plateau is a key place to test several contrasting tectonic models regarding uplift of the plateau. However, our understanding of the Cenozoic deformation history of the northeastern Tibetan Plateau is incomplete, preventing a clear understanding of the uplift and deformation mechanisms of this plateau. Here, we present new apatite (U-Th)/He ages from the hanging wall of the Qaidam Shan fault, which lies on the southern margin of the Qilian Shan. Our results reveal a phase of rapid exhumation during 15–10 Ma driven by thrusting accompanied by southward growth of the Qilian Shan. A review of the literature reveals that this phase of tectonic deformation is widespread in the northeastern Tibetan Plateau and some recent studies suggest ~25–20 Ma onset of sediment accumulation in the northern Qaidam Basin bounding the Qilian Shan. These results challenge models arguing for early deformation of northeastern margin of the Tibetan Plateau. © 2019 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170663
Appears in Collections:气候变化与战略

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作者单位: School of Earth Sciences & Key Laboratory of Mineral Resources in Western China (Gansu Province), Lanzhou University, Lanzhou, 730000, China; Key Laboratory of Western China's Environmental Systems (Ministry of Education) & College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China; College of Geographical Sciences, Southwest University, Chongqing, 400715, China; Géosciences, Université de Rennes 1, Rennes, 35700, France

Recommended Citation:
Meng Q.,Song C.,Nie J.,et al. Middle-late Miocene rapid exhumation of the southern Qilian Shan and implications for propagation of the Tibetan Plateau[J]. Tectonophysics,2020-01-01,774
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