气候变化领域集成服务门户(CCPortal): Modes and dynamics of multi-terrane deformation during continental collision

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DOI	10.6038/cjg2019M0607
	Modes and dynamics of multi-terrane deformation during continental collision
	Huangfu PengPeng; Li ZhongHai; Fan WeiMing
通讯作者	Huangfu, PP (通讯作者)
发表日期	2019
ISSN	0001-5733
起始页码	1230
结束页码	1243
卷号	62 期号:4
英文摘要	Almost all the collisional orogens are constructed of accreted terranes, which are commonly regarded as an essential component. Previous studies have extensively investigated physical processes of terrane accretion as well as the corresponding geological records, but terrane deformation behaviors and the detachment modes due to continuous continental convergence are still poorly understood. In this work, we built a series of 2D numerical models involving two terranes representing multi-terrane structure of the natural orogens, to explore the effects of rheological properties and geometric parameters of the terrane on itself deformation and dynamic evolution of the collision zone. Model results reveal that the deformation behaviors of the terranes are mainly controlled by the rheological strength and the geometric width of the terrane that neighbors on the subduction zone, whereas the width of the farther terrane won't affect much. More importantly, according to the model results, intra-terrane underthrusting only occurs under the condition of a wide subduction-zone-neighboring terrane, and it is the weak terrane that usually underthrusts the relatively strong terrane. This study not only indicates two contrasting terrane deformation modes that might be applied to western and central Tibet, but also provides significant implications for lithospheric evolution of the natural orogens that contain a number of accreted terranes.
关键词	TECTONIC EVOLUTION CONSTRAINTS SUBDUCTION OROGENS PLATEAU BENEATH TIBET
英文关键词	Terrane deformation; Terrane detachment; Continental collision; Tibetan plateau; Numerical modelling
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000467680300005
来源期刊	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
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/259400
推荐引用方式 GB/T 7714	Huangfu PengPeng,Li ZhongHai,Fan WeiMing. Modes and dynamics of multi-terrane deformation during continental collision[J]. 中国科学院青藏高原研究所,2019,62(4).
APA	Huangfu PengPeng,Li ZhongHai,&Fan WeiMing.(2019).Modes and dynamics of multi-terrane deformation during continental collision.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,62(4).
MLA	Huangfu PengPeng,et al."Modes and dynamics of multi-terrane deformation during continental collision".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 62.4(2019).