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《Chinese Journal of Geophysics》 2017-01
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Tomographic images of crustal structure beneath the Bohai Strait and surrounding areas,eastern China

WANG Sheng;XU Yi;MENG Xiao-Chun;Key laboratory of petroleum resource research,Institute of Geology and Geophysics,Chinese Academy of Sciences;University of Chinese Academy of Sciences;Science and Technology Institute of Disaster Prevention;  
The Bohai Strait is an important channel to link the Liaodong peninsula and the Shandong peninsula of eastern China. To estimate the stability of the crustal structure of the strait and adjacent areas, we used seismic tomography to construct a three-dimensional P-wave velocity model for this region. Distinct velocity variations are observed beneath the Bohai Strait.Its northern part is featured by a high-velocity curst with stable structure, less affected by tectonic alternations, with weak seismicity. However, a thin low-velocity layer is found in the lowermost crust, which extends from the northern strait toward the Liaodong peninsula, and may be a detachment layer between the crust and the upper mantle. We need to confirm this layer through future studies. On the contrary, the southern part of the strait is featured by a lowvelocity crust with active seismicity likely associated with the Zhangjiakou-Penglai fault zone.Tectonic activity along this fault zone greatly affects the stability of the crustal structure of the southern strait. In the southern Bohai Sea, prominent velocity variations are observed in the east and west of the Tan-Lu fault zone. Compared to the high-velocity crust in the west, the east of the fault zone adjacent to the Bohai Strait is featured by the low-velocity crust. This is probably related to a broadly distributed fault system and frequent earthquakes of the area. Additionally,affected by the North China Craton destruction and mantle upwelling, low velocity characterizes the deep crust and upper mantle of the Bohai Sea. Evidence of heat flows can be found in the uppermost mantle beneath the Tan-Lu fault zone and the Bohai Strait, which reflects the thinning of the lithosphere and the local rise of the asthenosphere.
【Fund】: 中国地质调查局项目(GZH201200504 GZH200900504)资助
【CateGory Index】: P736
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【Citations】
Chinese Journal Full-text Database 10 Hits
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Guang ZHU;Cheng LIU;Chengchuan GU;Shuai ZHANG;Yunjian LI;Nan SU;Shiye XIAO;School of Resource and Environmental Engineering,Hefei University of Technology;;Oceanic plate subduction history in the western Pacific Ocean:Constraint from late Mesozoic evolution of the Tan-Lu Fault Zone[J];Science China(Earth Sciences);2018-04
2 Jianping ZHENG;Hongkun DAI;School of Earth Sciences, State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences;;Subduction and retreating of the western Pacific plate resulted in lithospheric mantle replacement and coupled basin-mountain respond in the North China Craton[J];Science China(Earth Sciences);2018-04
3 Yongfei ZHENG;Zheng XU;Zifu ZHAO;Liqun DAI;CAS Key Laboratory of Crust-Mantle Materials and Environments,School of Earth and Space Science,University of Science and Technology of China;;Mesozoic mafic magmatism in North China:Implications for thinning and destruction of cratonic lithosphere[J];Science China(Earth Sciences);2018-04
4 CAO Guangyue;XUE Huaimin;LIU Zhe;LU Zenglong;Institute of Geology,Chinese Academy of Geological Sciences;;Geochronology,Geochemistry and Petrogenesis of the Early Cretaceous Volcanic Rocks of the Qingshan Group in the Linqu Area,Western Shandong Province[J];地质学报;2018-03
5 LI Li;ZHONG Dailai;CHEN Xiafei;CHEN Yan;School of Geosciences,China University of Petroleum;Laboratory for Marine Mineral Resources,Qingdao National laboratory for Marine Science and Technology;Institute of the Geology and Geophysics,Chinese Academy of Sciences;;Characteristics of NW-Trending Faults and Evidence of Fission Track in the Luxi Block[J];地质学报;2018-03
6 Shaopeng Dong;Peizhen Zhang;Huiping Zhang;Wenjun Zheng;Huixian Chen;Key Laboratory of Active Tectonics and Volcano, Institute of Geology China Earthquake Administration;State Key Laboratory of Earthquake Dynamics, Institute of Geology China Earthquake Administration;School of Earth Science and Geological Engineering, Sun Yan-Sen University;Map Supervision Center of SBSM;;Drainage Responses to the Activity of the Langshan Range-Front Fault and Tectonic Implications[J];Journal of Earth Science;2018-01
7 AI Hao;ZHAO Xinmin;CHEN Qian;LONG Qiuli;QIN Juanying;Gemmological Institute,Shaanxi Fashion Engineering University;;Gemmological and Geochemical Characteristic of Zircon Megacryst Related to Cenozoic Alkaline Basalt from Eastern China[J];宝石和宝石学杂志;2018-01
8 ZHANG YaoYang;CHEN Ling;AI YinShuang;JIANG MingMing;XU WeiWei;SHEN ZhongYin;Institute of Geology and Geophysics,Chinese Academy of Sciences;University of Chinese Academy of Sciences;Institute of Geophysical and Geochemical Exploration;Institute of Geophysics,China Earthquake Administration;;Lithospheric structure of the South China Block from S-receiver function[J];地球物理学报;2018-01
9 WANG Guiling;ZHANG Wei;LIN Wenjing;LIU Feng;ZHU Xi;LIU Yanguang;LI jun;;Research on formation mode and development potential of geothermal resources in Beijing-Tianjin-Hebei region[J];中国地质;2017-06
10 LIN Xiang-Dong;YUAN Huai-Yu;XU Ping;YANG Xuan;XU Zhi-Guo;SUN Hai-Xia;HOU Li-Juan;XU Sheng-Tao;XI Chong-Xiao;Earthquake Administration of Beijing Municipality;ARC Centre of Excellence from Core to Crust Fluid Systems,Macquarie University;Earthquake Administration of Guangdong Province;National Marine Environmental Forecasting Center;;Zonational characteristics of earthquake focal mechanism solutions in North China[J];地球物理学报;2017-12
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Chinese Journal Full-text Database 10 Hits
1 HAO Tian-Yao;HU Wei-Jian;XING Jian;HU Li-Tian;XU Ya;QIN Jing-Xin;LIU Shao-Hua;LEI Shou-Min;Key Laboratory of Petroleum Resources Research,Institute of Geology and Geophysics, Chinese Academy of Sciences;University of Chinese Academy of Sciences;Institute of Remote Sensing and Digital Earth,Chinese Academy of Sciences;Qingdao Institute of Marine Geology,Ministry of Land & Resources of China;;The Moho depth map(1:5000000) in the land and seas of China and adjacent areas and its geological implications[J];地球物理学报;2014-12
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9 WANG Shuqin1), SUN Xiaomeng2), DU Jiyu2),WANG Yingde2), XU Qiangwei 2),TIAN Jingxiong2) 1)Jilin Geological Exploration Institute of China Chemical Geology and Mine Bureau, Changchun, 130033; 2) College of Earth Sciences, Jilin University, Changchun, 130026;Analysis of Structural Styles in Northern Segment of Tancheng—Lujiang Fault Zone[J];地质论评;2012-03
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