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Continental lithospheric-scale subduction versus crustal-scale underthrusting in the collision zone: Numerical modeling
Huangfu, PP (Huangfu, Pengpeng)1; Li, ZH (Li, Zhong-Hai)1,2; Fan, WM (Fan, Weiming)1,3,4; Zhang, KJ (Zhang, Kai-Jun)1; Shi, YL (Shi, Yaolin)1
Source PublicationTECTONOPHYSICS
2019
Volume757Issue:0Pages:68-87
DOI10.1016/j.tecto.2019.03.007
Abstract

Two distinct styles of continental collision are observed in nature, i.e. lithospheric-scale subduction versus crustal-scale underthrusting. The former refers to a collision scenario where the lower plate subducts below the lithospheric mantle of the overriding plate, whereas the latter is characterized by the underthrusting of the subducting plate beneath the crust of the overriding plate. Systematic numerical models were constructed to study the dynamics of these two different collision modes. The model results indicate that low convergence rate and cold overriding plate contribute to the lithospheric-scale subduction, which incorporates limited shortening of the overriding lithosphere during collision. In contrast, the crustal-scale underthrusting requires relatively high convergence rate and hot/weak overriding plate, in which the thickened lithospheric mantle of the over-riding plate is progressively delaminated from the overlying crust and is replaced by the sub-horizontally underthrusted plate. The model results were systematically compared with four ongoing collisional orogens along the Alpine-Himalayan belt, i.e. the central-western Alps, the East Anatolian plateau, the Zagros-Iranian plateau, and the southern Tibetan plateau. It indicates that the lithospheric-scale subduction is widely observed and generally consistent with the natural orogens, for example, the Alps, Anatolia, and Zagros. On the other hand, the crustal-scale underthrusting is reconciled with the India-Asia collision zone, with respect to the geodynamic conditions, crustal-lithospheric structure, as well as the uplift history.

Subject AreaGeoscience
WOS IDWOS:000467509000007
Language英语
Indexed BySCI
KeywordMantle Beneath Tibet Surrounding Regions Tectonic Evolution Seismic Velocity Plate Boundaries Iranian Plateau Dynamics Delamination Architecture Deformation
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
Cooperation Status国内
ISSN0040-1951
Department大陆碰撞与高原隆升
URL查看原文
PublisherELSEVIER SCIENCE BV
SubtypeArticle
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Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/9330
Collection图书馆
Corresponding AuthorLi, ZH (Li, Zhong-Hai)
Affiliation1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Key Lab Computat Geodynam, Beijing 100049, Peoples R China;
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266237, Shandong, Peoples R China;
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China;
4.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing 100101, Peoples R China.
Recommended Citation
GB/T 7714
Huangfu, PP ,Li, ZH ,Fan, WM ,et al. Continental lithospheric-scale subduction versus crustal-scale underthrusting in the collision zone: Numerical modeling[J]. TECTONOPHYSICS,2019,757(0):68-87.
APA Huangfu, PP ,Li, ZH ,Fan, WM ,Zhang, KJ ,&Shi, YL .(2019).Continental lithospheric-scale subduction versus crustal-scale underthrusting in the collision zone: Numerical modeling.TECTONOPHYSICS,757(0),68-87.
MLA Huangfu, PP ,et al."Continental lithospheric-scale subduction versus crustal-scale underthrusting in the collision zone: Numerical modeling".TECTONOPHYSICS 757.0(2019):68-87.
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