Crustal and upper mantle structure of the Northeastern Tibetan Plateau imaged from EGM2008

PreviousNext No AccessInternational Workshop and Gravity, Electrical & Magnetic Methods and their Applications, Chenghu, China, 19-22 April 2015Crustal and upper mantle structure of the Northeastern Tibetan Plateau imaged from EGM2008Authors: Benteng BiXiangyun HuLiqing LiYingjie PengXihan LiBenteng BiChina University of Geosciences, Wuhan, Hubei, ChinaSearch for more papers by this author, Xiangyun HuChina University of Geosciences, Wuhan, Hubei, ChinaSearch for more papers by this author, Liqing LiChina University of Geosciences, Wuhan, Hubei, ChinaSearch for more papers by this author, Yingjie PengChina University of Geosciences, Wuhan, Hubei, ChinaSearch for more papers by this author, and Xihan LiChina University of Geosciences, Wuhan, Hubei, ChinaSearch for more papers by this authorhttps://doi.org/10.1190/GEM2015-068 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract The Northeastern Tibetan Plateau, located at an important tectonic junction, is an ideal site to study continental dynamics. To clarify the detailed knowledge of the lithosphere in the Northeastern Tibetan Plateau, this paper presents results from the Earth Gravitational Model 2008 (EGM2008) data in the region. We used multi-scale wavelet analysis theory to separate the Bouguer gravity anomaly into different parts of shallow to deep, and then estimated the corresponding source depths by the logarithmic power spectrum technique. Moreover, we calculated the crustal thickness and described the Moho topography. The results show that the crust-mantle structure in the Northeastern Tibetan Plateau is different from the peripheral areas. The Northeastern Tibetan Plateau experienced intense deformation due to the eastward shift of the Tibetan Plateau and the strong obstruction of the surrounding blocks. At the margin of the Plateau, which is extruded most intensely, partial melting may occur in the lower crust and upper mantle. Keywords: gravity, crustal structure, topographyPermalink: https://doi.org/10.1190/GEM2015-068FiguresReferencesRelatedDetails International Workshop and Gravity, Electrical & Magnetic Methods and their Applications, Chenghu, China, 19-22 April 2015ISSN (online):2159-6832Copyright: 2015 Pages: 520 publication data© 2015 Published in electronic format with permission by the Society of Exploration Geophysicists and the Chinese Geophysical SocietyPublisher:Society of Exploration Geophysicists HistoryPublished Online: 22 Apr 2015 CITATION INFORMATION Benteng Bi, Xiangyun Hu, Liqing Li, Yingjie Peng, and Xihan Li, (2015), "Crustal and upper mantle structure of the Northeastern Tibetan Plateau imaged from EGM2008," SEG Global Meeting Abstracts : 262-265. https://doi.org/10.1190/GEM2015-068 Plain-Language Summary Keywordsgravitycrustal structuretopographyPDF DownloadLoading ...