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Three-dimensional structural model of the Qaidam basin: Implications for crustal shortening and growth of the northeast Tibet

文献类型：期刊论文

作者Guo, Jianming1; Wei, Xuebing2; Long, Guohui2; Wang, Bo2; Fan, Hailong1,3; Xu, Shiyang1,3
刊名OPEN GEOSCIENCES
出版日期2017
卷号9期号:1页码:174-185
关键词Qaidam basin 3D modeling Structral restoration Altyn Tagh fault Crust-buckling model
ISSN号2391-5447
DOI10.1515/geo-2017-0015
文献子类Article
英文摘要The Qaidam basin, bounded by the Altyn Tagh fault in the north, is located in the northeast of the Tibet plateau, and it has important implications for understanding the history and mechanism of Tibetan plateau formation during the Cenozoic Indo-Eurasia collision. In this study, we constructed the main geological structures and surfaces in three dimensions through the interpolation of regularly spaced 2D seismic sections, constrained by wells data and surface geology of the Qaidam basin in northeast Tibet. Meanwhile the Cenozoic tectonic history of the Qaidam basin was reconstructed and the uplift mechanism of the Tibetan plateau was discussed. This study presents the subsurface data in conjunction with observations and analysis of the stratigraphic and sedimentary evolution. The Cenozoic deformation history of the Qaidam basin shows geologic synchroneity with uplifting history of the Tibet Plateau. It is therefore proposed that the deformation and uplifting in the south and north edges of the Tibet Plateau was almost synchronous. The total shortening and shortening rate during Cenozoic reached 25.5 km and 11.2% respectively across the Qaidam basin, indicating that the loss of the left-lateral strike slip rates of the Altyn Tagh fault has been structurally transformed into local crustal thickening across NW-trending folds and thrust faults. Meanwhile there is an about 11(omicron) vertical component along the strike-slip Altyn Tagh fault, the block oblique slip shows one more growth mechanism of the northeast Tibet.
WOS关键词CENOZOIC TECTONIC EVOLUTION ; ALTYN-TAGH FAULT ; NORTHWEST CHINA ; HEXI CORRIDOR ; KUNLUN RANGE ; STRIKE-SLIP ; PLATEAU ; DEFORMATION ; FLOW ; RECONSTRUCTION
WOS研究方向Geology
语种英语
WOS记录号WOS:000403111600005
出版者DE GRUYTER OPEN LTD
资助机构Important Direction Project of Knowledge Innovation in Resource and Environment Field, Chinese Academy of Sciences(KZCX2-EW-QN112) ; Key Laboratory of Petroleum Resources, Gansu Province, Institute of Geology and Geophysics, Chinese Academy of Sciences(135CCJJ20160517) ; Important Direction Project of Knowledge Innovation in Resource and Environment Field, Chinese Academy of Sciences(KZCX2-EW-QN112) ; Key Laboratory of Petroleum Resources, Gansu Province, Institute of Geology and Geophysics, Chinese Academy of Sciences(135CCJJ20160517) ; Important Direction Project of Knowledge Innovation in Resource and Environment Field, Chinese Academy of Sciences(KZCX2-EW-QN112) ; Key Laboratory of Petroleum Resources, Gansu Province, Institute of Geology and Geophysics, Chinese Academy of Sciences(135CCJJ20160517) ; Important Direction Project of Knowledge Innovation in Resource and Environment Field, Chinese Academy of Sciences(KZCX2-EW-QN112) ; Key Laboratory of Petroleum Resources, Gansu Province, Institute of Geology and Geophysics, Chinese Academy of Sciences(135CCJJ20160517)
源URL[http://ir.iggcas.ac.cn/handle/132A11/46367]  
专题地质与地球物理研究所_兰州油气中心
通讯作者Guo, Jianming
作者单位1.Chinese Acad Sci, Key Lab Petr Resources, Gansu Prov Key Lab Petr Resources Res, Inst Geol & Geophys, Lanzhou 730000, Peoples R China
2.PetroChina Qinghai Oilfield Co, Res Inst Petr Explorat & Dev, Dunhuang 736202, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Jianming,Wei, Xuebing,Long, Guohui,et al. Three-dimensional structural model of the Qaidam basin: Implications for crustal shortening and growth of the northeast Tibet[J]. OPEN GEOSCIENCES,2017,9(1):174-185.
APA Guo, Jianming,Wei, Xuebing,Long, Guohui,Wang, Bo,Fan, Hailong,&Xu, Shiyang.(2017).Three-dimensional structural model of the Qaidam basin: Implications for crustal shortening and growth of the northeast Tibet.OPEN GEOSCIENCES,9(1),174-185.
MLA Guo, Jianming,et al."Three-dimensional structural model of the Qaidam basin: Implications for crustal shortening and growth of the northeast Tibet".OPEN GEOSCIENCES 9.1(2017):174-185.

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来源：地质与地球物理研究所

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