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  4. 岩石圈演化国家重点实验室
New Crustal Vs Model Along an Array in South-East China: Seismic Characters and Paleo-Tethys Continental Amalgamation

文献类型：期刊论文

作者Li, Tingzi1,2,3,5; Zhao, Liang2,3; Wan, Bo2,3; Li, Zheng-Xiang4,7; Bodin, Thomas6; Wang, Kun2; Yuan, Huaiyu1,5
刊名GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
出版日期2020-07-01
卷号21期号:7页码:18
关键词Paleo-Tethys continental collision shear wave velocity ambient noise south-east China wedge tectonics
DOI10.1029/2020GC009024
英文摘要The assembly of East Asia was closely linked to the closure of the Tethyan oceans. In south-east China, the closure of the Paleo-Tethys ocean led to a continental collision between the South China and North China blocks (SCB and NCB), forming the world renowned (ultra-) high pressure (UHP) metamorphic belt of the Dabie-Sulu Orogen. The region was subsequently reworked by postorogenic extensional processes. These tectonic processes likely have left lithospheric scars identifiable by seismic imaging techniques. Here we characterize seismic structures across the orogen and analyze processes related to the closure of the Paleo-Tethys. Using cutting-edge tomographic approaches and ambient noise dispersion data, we developed a fine-scale crustal shear-wave velocity model beneath key crustal domains in the region. Distinct crustal scale velocity domains are identified, corresponding to the normal Precambrian crust, slow-velocity suture zones and fault systems, and fast-velocity orogens, suggesting a deep root of the corresponding surface geological features. By combining recent models of active-source, gravity and magnetotellurics, characteristic lithospheric deformation patterns such as crustal thrust systems and lithospheric wedges can be inferred, which are attributed to a northward subduction of the SCB lithosphere and the eventual continental collision after the closure of the Paleo-Tethys Ocean.
WOS关键词YANGTZE METALLOGENIC BELT ; SURROUNDING AREAS CONSTRAINTS ; PRESSURE METAMORPHIC ROCKS ; UPPER-MANTLE DEFORMATION ; SURFACE-WAVE DISPERSION ; NORTH CHINA ; VELOCITY STRUCTURE ; AMBIENT NOISE ; STRUCTURE BENEATH ; TRANSDIMENSIONAL INVERSION
资助项目NSFC[91955210] ; NSFC[41625016] ; NSFC[41888101] ; NSFC[91755000] ; NSFC[Y201715] ; CAS program[GJHZ1776] ; European Union's Horizon 2020 research and innovation programme[716542] ; Australian Government ; Government of Western Australia
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000557248500028
出版者AMER GEOPHYSICAL UNION
资助机构NSFC ; NSFC ; NSFC ; NSFC ; CAS program ; CAS program ; CAS program ; CAS program ; European Union's Horizon 2020 research and innovation programme ; European Union's Horizon 2020 research and innovation programme ; European Union's Horizon 2020 research and innovation programme ; European Union's Horizon 2020 research and innovation programme ; Australian Government ; Australian Government ; Australian Government ; Australian Government ; Government of Western Australia ; Government of Western Australia ; Government of Western Australia ; Government of Western Australia ; NSFC ; NSFC ; NSFC ; NSFC ; CAS program ; CAS program ; CAS program ; CAS program ; European Union's Horizon 2020 research and innovation programme ; European Union's Horizon 2020 research and innovation programme ; European Union's Horizon 2020 research and innovation programme ; European Union's Horizon 2020 research and innovation programme ; Australian Government ; Australian Government ; Australian Government ; Australian Government ; Government of Western Australia ; Government of Western Australia ; Government of Western Australia ; Government of Western Australia ; NSFC ; NSFC ; NSFC ; NSFC ; CAS program ; CAS program ; CAS program ; CAS program ; European Union's Horizon 2020 research and innovation programme ; European Union's Horizon 2020 research and innovation programme ; European Union's Horizon 2020 research and innovation programme ; European Union's Horizon 2020 research and innovation programme ; Australian Government ; Australian Government ; Australian Government ; Australian Government ; Government of Western Australia ; Government of Western Australia ; Government of Western Australia ; Government of Western Australia ; NSFC ; NSFC ; NSFC ; NSFC ; CAS program ; CAS program ; CAS program ; CAS program ; European Union's Horizon 2020 research and innovation programme ; European Union's Horizon 2020 research and innovation programme ; European Union's Horizon 2020 research and innovation programme ; European Union's Horizon 2020 research and innovation programme ; Australian Government ; Australian Government ; Australian Government ; Australian Government ; Government of Western Australia ; Government of Western Australia ; Government of Western Australia ; Government of Western Australia
源URL[http://ir.iggcas.ac.cn/handle/132A11/97614]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Yuan, Huaiyu
作者单位1.Macquarie Univ, ARC Ctr Excellence Core Crust Fluid Syst, Dept Earth & Environm Sci, N Ryde, NSW, Australia
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.Curtin Univ, Earth Dynam Res Grp, ARC Ctr Excellence Core Crust Fluid Syst, Perth, WA, Australia
5.Univ Western Australia, Ctr Explorat Targeting, Crawley, WA, Australia
6.Univ Lyon 1, CNRS, ENS Lyon, Lyon, France
7.Curtin Univ, Sch Earth & Planetary Sci, Inst Geosci Res, Perth, WA, Australia
推荐引用方式
GB/T 7714		 Li, Tingzi,Zhao, Liang,Wan, Bo,et al. New Crustal Vs Model Along an Array in South-East China: Seismic Characters and Paleo-Tethys Continental Amalgamation[J]. GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,2020,21(7):18.
APA Li, Tingzi.,Zhao, Liang.,Wan, Bo.,Li, Zheng-Xiang.,Bodin, Thomas.,...&Yuan, Huaiyu.(2020).New Crustal Vs Model Along an Array in South-East China: Seismic Characters and Paleo-Tethys Continental Amalgamation.GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,21(7),18.
MLA Li, Tingzi,et al."New Crustal Vs Model Along an Array in South-East China: Seismic Characters and Paleo-Tethys Continental Amalgamation".GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 21.7(2020):18.

入库方式： OAI收割

来源：地质与地球物理研究所

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