Late Cretaceous-earliest Paleogene deformation in the Longmen Shan fold-and-thrust belt, eastern Tibetan Plateau margin: Pre-Cenozoic thickened crust?
文献类型：期刊论文
| 作者 | Tian, Yuntao1,2,3; Kohn, Barry P.1; Phillips, David1; Hu, Shengbiao4; Gleadow, Andrew J. W.1; Carter, Andrew5 |
| 刊名 | TECTONICS
 |
| 出版日期 | 2016-10-01 |
| 卷号 | 35期号:10页码:2293-2312 |
| DOI | 10.1002/2016TC004182 |
| 文献子类 | Article |
| 英文摘要 | This study presents structural and Ar-40/Ar-39 geochronological data from the southern part of the Longmen Shan fold-and-thrust belt that forms the eastern margin of the Tibetan Plateau. Investigations focused on hinterland ductile top-to-the-WNW shear deformation, which has been linked previously to late Cenozoic lower crustal flow. Consistent with previous studies, the sense of deformation is mapped as top-to-the-WNW in the Longmen Shan hinterland. The timing of the deformation is constrained by Ar-40/Ar-39 geochronological data of recrystallized minerals aligned along the shear foliation as Late Cretaceous-earliest Paleogene, thus predating the inferred late Cenozoic crustal flow. This deformation is contemporaneous with SE verging thrusting and loading along the Longmen Shan front, which formed a coeval similar to 2-3 km thick foredeep sequence along the southwestern margin of the Sichuan Basin. In the context of the regional geology, this tectonic configuration could result from either extrusion of a crustal wedge or back thrust in a duplex. Compared to other orogens, where similar crustal configurations have been reported, it is speculated that the eastern Tibetan Plateau margin acquired thickened crust and highly elevated topography in Late Cretaceous-earliest Paleogene time. |
| WOS关键词 | HIMALAYAN CRYSTALLINE COMPLEX ; SOUTHERN QUEBEC APPALACHIANS ; TECTONIC EVOLUTION ; SICHUAN BASIN ; WESTERN CHINA ; AGE CONSTRAINTS ; FORELAND BASIN ; LEADING-EDGE ; FAULT ZONE ; HEAT-FLOW |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000389332000004 |
| 资助机构 | National Collaborative Research Infrastructure Strategy AuScope program ; National Collaborative Research Infrastructure Strategy AuScope program ; National Collaborative Research Infrastructure Strategy AuScope program ; National Collaborative Research Infrastructure Strategy AuScope program |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/53182]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 作者单位 | 1.Univ Melbourne, Sch Earth Sci, Melbourne, Vic, Australia 2.UCL, Dept Earth Sci, London, England 3.Sun Yat Sen Univ, Dept Earth Sci & Geol Engn, Guangzhou, Guangdong, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China 5.Birkbeck Univ London, Dept Earth & Planetary Sci, London, England |
| 推荐引用方式 GB/T 7714 | Tian, Yuntao,Kohn, Barry P.,Phillips, David,et al. Late Cretaceous-earliest Paleogene deformation in the Longmen Shan fold-and-thrust belt, eastern Tibetan Plateau margin: Pre-Cenozoic thickened crust?[J]. TECTONICS,2016,35(10):2293-2312. |
| APA | Tian, Yuntao,Kohn, Barry P.,Phillips, David,Hu, Shengbiao,Gleadow, Andrew J. W.,&Carter, Andrew.(2016).Late Cretaceous-earliest Paleogene deformation in the Longmen Shan fold-and-thrust belt, eastern Tibetan Plateau margin: Pre-Cenozoic thickened crust?.TECTONICS,35(10),2293-2312. |
| MLA | Tian, Yuntao,et al."Late Cretaceous-earliest Paleogene deformation in the Longmen Shan fold-and-thrust belt, eastern Tibetan Plateau margin: Pre-Cenozoic thickened crust?".TECTONICS 35.10(2016):2293-2312. |
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来源：地质与地球物理研究所
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