中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Cenozoic tectonic development in the northeastern Tibetan Plateau: Evidence from thermochronological and sedimentological records

文献类型:期刊论文

作者Yu, Jingxing3; Zheng, Dewen2,3; Wang, Weitao1; Pang, Jianzhang3; Li, Chaopeng2,3; Wang, Yizhou3; Hao, Yuqi3; Zhang, Huiping3; Zhang, Peizhen1,3
刊名GLOBAL AND PLANETARY CHANGE
出版日期2023
卷号224页码:104098
关键词APATITE FISSION-TRACK ALTYN-TAGH FAULT NORTHERN QILIAN SHAN RESOLUTION MAGNETO STRATIGRAPHY LATE QUATERNARY SLIP QAIDAM BASIN HEXI CORRIDOR TOPOGRAPHIC GROWTH COOLING HISTORY XINING BASIN
ISSN号0921-8181
DOI10.1016/j.gloplacha.2023.104098
英文摘要The northeastern Tibetan Plateau occupies the northernmost portion of the plateau, whose timing and pattern of deformation during its Cenozoic tectonic development provide constraints on the kinematics and dynamics of plateau formation and evolution of Asian climate. Our knowledge of the tectonic growth in the northeastern Tibetan Plateau has progressed immensely over the past decades, particularly the last decade, and thus calls for a review on the tectonic history recorded by mountain building and adjacent basin deposition. Although evidence for the Paleocene-Eocene deformation exist in the northeastern Tibetan Plateau, some of them remain questionable as indicated by recently published high-quality magnetostratigraphies and thermochronological data. The Paleogene crustal shortening, if occurred, may have been confined to the Qaidam Shan and West Qinling. Updated paleomagnetostratigraphies from the northern Qaidam Basin indicate that crustal shortening did not initiate until the Oligocene, but not soon after the India-Eurasia collision, if the deposition of the conglomerates from the Lulehe Formation can be attributed to tectonic origin. We highlight that more investigations are needed to verify the reliability and areal extent of the Paleogene crustal shortening in the northeastern Tibetan Plateau. Furthermore, more recent studies suggest that the middle-Miocene deformation is widely distributed across the Qilian Shan. Based on a synthesis of studies on deformation timing and pattern in the Qilian Shan and its adjacent foreland basins, such as the Hexi Corridor and northern Qaidam Basin, we indicate that the Qilian Shan underwent a phase of approximately synchronous deformation during the middle Miocene. Since then, the crustal deformation has progressively propagated outward, including northward into the Hexi Corridor and Gobi-Alxa Block, southward into the northern Qaidam Basin, and eastward along the left-lateral strike-slip Qilian-Haiyuan fault. The summarized spatiotemporal growth appears to preclude widespread collision-age deformation or monotonical northward migration of crustal shortening in the northern interior of the plateau. The synchronous middle-Miocene deformation across the Qilian Shan could be a consequence of progressive northward growth of the plateau or a far-field effect of mantle lithosphere removal that occurred in the southern or middle portion of the plateau. Since the middle-Miocene crustal deformation is widespread around the margins of the plateau, we suggest that the removal of the mantle lithosphere beneath the southern or middle portion of the plateau may be the most plausible dynamic mechanism. ? 2023 Elsevier B.V.
WOS研究方向Geography, Physical ; Geosciences, Multidisciplinary
语种英语
WOS记录号WOS:000971992200001
源URL[http://ir.gig.ac.cn/handle/344008/80276]  
专题同位素地球化学国家重点实验室
作者单位1.School of Earth Sciences and Geological Engineering, Sun Yat-Sen University, Guangzhou; 510275, China
2.State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou; 510640, China
3.State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing; 100029, China
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Yu, Jingxing,Zheng, Dewen,Wang, Weitao,et al. Cenozoic tectonic development in the northeastern Tibetan Plateau: Evidence from thermochronological and sedimentological records[J]. GLOBAL AND PLANETARY CHANGE,2023,224:104098.
APA Yu, Jingxing.,Zheng, Dewen.,Wang, Weitao.,Pang, Jianzhang.,Li, Chaopeng.,...&Zhang, Peizhen.(2023).Cenozoic tectonic development in the northeastern Tibetan Plateau: Evidence from thermochronological and sedimentological records.GLOBAL AND PLANETARY CHANGE,224,104098.
MLA Yu, Jingxing,et al."Cenozoic tectonic development in the northeastern Tibetan Plateau: Evidence from thermochronological and sedimentological records".GLOBAL AND PLANETARY CHANGE 224(2023):104098.

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来源:广州地球化学研究所

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