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  4. 岩石圈演化国家重点实验室
Oroclinal buckling and associated lithospheric-scale material flow - insights from physical modelling: Implication for the Mongol-Hingan orocline

文献类型：期刊论文

作者Kryza, Ondrej4,5; Lexa, Ondrej4; Schulmann, Karel6,7; Guy, Alexandra6; Gapais, Denis8; Cosgrove, John9; Xiao, Wenjiao1,2,3
刊名TECTONOPHYSICS
出版日期2021-02-05
卷号800页码:17
关键词Analogue modelling Mongolian orocline Hingan orocline Oroclinal buckling
ISSN号0040-1951
DOI10.1016/j.tecto.2020.228712
英文摘要We present a new analogue model of omclinal buckling, which is based on recent advances in our geological understanding of the Mongolian orocline in the Central Asian Orogenic Belt. The model simulates an amplification of a preexisting, gently arcuated accretionary system. In the analogue models, we established three neighboring subdomains that represent contrasting lithospheric domains separated by a steep "subduction" interface. The shortening of the model is parallel to the pseudo-linear interface between these subdomains and produces two different deformation patterns in the amplified interlimb areas of the orocline. We used analogue modelling techniques to investigate both the flow of a ductile lithosphere and the brittle deformation of an upper crust that is associated with the development of an orocline. The modelling results show that: (1) two types of regional-scale folds develop both of which are upright. The largest are steeply plunging omclines and the smaller have sub-horizontal axes; (2) the overall deformation distribution displays significant thickening/thinning and exhumation of the lower ductile layers with variations of upward transfer of crustal material; (3) the hinge regions of the two adjacent oroclines studied consist of different materials, one contains oceanic and the other felsic lower crustal rocks. It is found that the geometry of the lithosphere beneath the two regions is very different; (4) the geometry of the omcline is non-cylindrical and exhibits an increasing plunge of fold axes when traced from the upper-crust to deeper lithospheric layers. The resulting model is used to geophysically constrain deep crustal structures and surface deformation patterns in Mongolia.
资助项目Czech Science Foundation GACR EXPRO grant[GX19-27682X] ; Center for Geosphere Dynamics[UNCE/SCI/006] ; National Natural Science Foundation of China[41888101]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000615712300006
出版者ELSEVIER
资助机构Czech Science Foundation GACR EXPRO grant ; Czech Science Foundation GACR EXPRO grant ; Center for Geosphere Dynamics ; Center for Geosphere Dynamics ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Czech Science Foundation GACR EXPRO grant ; Czech Science Foundation GACR EXPRO grant ; Center for Geosphere Dynamics ; Center for Geosphere Dynamics ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Czech Science Foundation GACR EXPRO grant ; Czech Science Foundation GACR EXPRO grant ; Center for Geosphere Dynamics ; Center for Geosphere Dynamics ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Czech Science Foundation GACR EXPRO grant ; Czech Science Foundation GACR EXPRO grant ; Center for Geosphere Dynamics ; Center for Geosphere Dynamics ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/100131]  
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Kryza, Ondrej
作者单位1.Chinese Acad Sci, Xinjiang Res Ctr Mineral Resources, Xinjiang Inst Ecol & Geog, Urumqi 830011, Xinjiang, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
4.Charles Univ Prague, Inst Petrol & Struct Geol, Albertov 6, Prague 12843, Czech Republic
5.Czech Acad Sci, Inst Geophys, Bocni 2-1401, Prague 14131 4, Czech Republic
6.Czech Geol Survey, Ctr Lithosphere Res, Klarov 3, Prague 11821 1, Czech Republic
7.Univ Strasbourg, Inst Phys Globe Strasbourg, CNRS, UMR7516, Strasbourg, France
8.Univ Rennes 1, Geosci Rennes, UMR 6118, CNRS, F-35042 Rennes, France
9.Imperial Coll London, Dept Earth Sci & Engn, Prince Consort Rd, London SW7 2AZ, England
推荐引用方式
GB/T 7714		 Kryza, Ondrej,Lexa, Ondrej,Schulmann, Karel,et al. Oroclinal buckling and associated lithospheric-scale material flow - insights from physical modelling: Implication for the Mongol-Hingan orocline[J]. TECTONOPHYSICS,2021,800:17.
APA Kryza, Ondrej.,Lexa, Ondrej.,Schulmann, Karel.,Guy, Alexandra.,Gapais, Denis.,...&Xiao, Wenjiao.(2021).Oroclinal buckling and associated lithospheric-scale material flow - insights from physical modelling: Implication for the Mongol-Hingan orocline.TECTONOPHYSICS,800,17.
MLA Kryza, Ondrej,et al."Oroclinal buckling and associated lithospheric-scale material flow - insights from physical modelling: Implication for the Mongol-Hingan orocline".TECTONOPHYSICS 800(2021):17.

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来源：地质与地球物理研究所

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