气候变化领域集成服务门户(CCPortal): Continental lithospheric-scale subduction versus crustal-scale underthrusting in the collision zone: Numerical modeling

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DOI	10.1016/j.tecto.2019.03.007
	Continental lithospheric-scale subduction versus crustal-scale underthrusting in the collision zone: Numerical modeling
	Huangfu, Pengpeng; Li, Zhong-Hai; Fan, Weiming; Zhang, Kai-Jun; Shi, Yaolin
通讯作者	Li, ZH (通讯作者)
发表日期	2019
ISSN	0040-1951
EISSN	1879-3266
起始页码	68
结束页码	87
卷号	757
英文摘要	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.
关键词	MANTLE BENEATH TIBET SURROUNDING REGIONS TECTONIC EVOLUTION SEISMIC VELOCITY PLATE BOUNDARIES IRANIAN PLATEAU DYNAMICS DELAMINATION ARCHITECTURE DEFORMATION
英文关键词	Continental collision; Lithospheric-scale subduction; Crustal-scale underthrusting; Alpine-Himalayan belt; Tibetan plateau; Numerical modeling
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000467509000007
来源期刊	TECTONOPHYSICS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259464
推荐引用方式 GB/T 7714	Huangfu, Pengpeng,Li, Zhong-Hai,Fan, Weiming,et al. Continental lithospheric-scale subduction versus crustal-scale underthrusting in the collision zone: Numerical modeling[J]. 中国科学院青藏高原研究所,2019,757.
APA	Huangfu, Pengpeng,Li, Zhong-Hai,Fan, Weiming,Zhang, Kai-Jun,&Shi, Yaolin.(2019).Continental lithospheric-scale subduction versus crustal-scale underthrusting in the collision zone: Numerical modeling.TECTONOPHYSICS,757.
MLA	Huangfu, Pengpeng,et al."Continental lithospheric-scale subduction versus crustal-scale underthrusting in the collision zone: Numerical modeling".TECTONOPHYSICS 757(2019).