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Components and structures of the eastern Tethyan Himalayan Sequence in SW China: Not a passive margin shelf but a melange accretionary prism

文献类型：期刊论文

作者Ao, Songjian1,4; Xiao, Wenjiao1,2,4; Windley, Brian F.3; Zhang, Ji'en1; Zhang, Zhiyong1; Yang, Lei1,4
刊名GEOLOGICAL JOURNAL
出版日期2018-11-01
卷号53期号:6页码:2665-2689
关键词accretionary prism India-Asia collision melange ophiolite Tethyan Himalayan Sequence
ISSN号0072-1050
DOI10.1002/gj.3103
英文摘要The Tethyan Himalaya Sequence between the Yarlung-Zangbo Suture and South Tibetan Detachment is a fundamental component of the Himalayan orogenic belt, traditionally considered to belong to the passive continental margin of India. However, the eastern Tethyan Himalaya Sequence is poorly understood, compared with that in the central and western Himalaya. To improve general understanding, we undertook north-south geological-structural profiles across all the litho-tectonic units of the eastern Tethyan Himalaya Sequence and produced new isotopic-geochemical data from all units, to constrain their mode of occurrence, structure, tectonic setting, and time of formation. The whole Tethyan Himalaya Sequence consists of a thrust-imbricated melange that contains blocks of ophiolites (such as Lang County, Yumen, and Lhunze), oceanic islands (e.g., Comei) with ocean island basalts-type basalts, mafic greenschists, limestone olistoliths, and cherts in a turbiditic matrix of greywackes, siltstones, and slates in south-directed thrust slices. Our findings suggest that the eastern Tethyan Himalaya Sequence represents the evolution of an accretionary prism, rather than a passive margin of the Indian Plate. The prism was created during northward subduction of Neo-Tethys between similar to 130 and similar to 50 Ma. These data allow us to produce a new tectonic model for the structural development of the eastern Himalayan orogenic belt in relation to the India-Asia collision.
WOS关键词ZANGBO SUTURE ZONE ; ZIRCON U-PB ; HF ISOTOPIC CONSTRAINTS ; INDIA-ASIA COLLISION ; FOLD-THRUST BELT ; SOUTHERN TIBET ; TECTONIC EVOLUTION ; XIGAZE OPHIOLITE ; METAMORPHIC SOLE ; SUBDUCTION ZONE
资助项目National Natural Science Foundation of China[41472192] ; National Natural Science Foundation of China[41390441] ; National Natural Science Foundation of China[41202150] ; Chinese Academy of Sciences[XDB03010801]
WOS研究方向Geology
语种英语
WOS记录号WOS:000450653800016
出版者WILEY
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/89595]  
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Ao, Songjian
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
3.Univ Leicester, Dept Geol, Leicester, Leics, England
4.Univ Chinese Acad Sci, Dept Earth Sci, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Ao, Songjian,Xiao, Wenjiao,Windley, Brian F.,et al. Components and structures of the eastern Tethyan Himalayan Sequence in SW China: Not a passive margin shelf but a melange accretionary prism[J]. GEOLOGICAL JOURNAL,2018,53(6):2665-2689.
APA Ao, Songjian,Xiao, Wenjiao,Windley, Brian F.,Zhang, Ji'en,Zhang, Zhiyong,&Yang, Lei.(2018).Components and structures of the eastern Tethyan Himalayan Sequence in SW China: Not a passive margin shelf but a melange accretionary prism.GEOLOGICAL JOURNAL,53(6),2665-2689.
MLA Ao, Songjian,et al."Components and structures of the eastern Tethyan Himalayan Sequence in SW China: Not a passive margin shelf but a melange accretionary prism".GEOLOGICAL JOURNAL 53.6(2018):2665-2689.

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来源：地质与地球物理研究所

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