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Paleozoic Subduction-Accretion in the Southern Central Asian Orogenic Belt: Insights From the Wuwamen Accretionary Complex of the Chinese South Tianshan

文献类型：期刊论文

作者Wang, Xin-Shui1; Klemd, Reiner2; Li, Ji-Lei3; Gao, Jun3,4; Jiang, Tuo5; Zong, Ke-Qing1; Xue, Sheng-Chao6
刊名TECTONICS
出版日期2022-02-01
卷号41期号:2页码:27
关键词subduction accretionary complex Tianshan Central Asian Orogenic Belt metamorphism zircon U-Pb
ISSN号0278-7407
DOI10.1029/2021TC006965
英文摘要Accretionary complexes are a major component of the Central Asian Orogenic Belt (CAOB) and are important for understanding its architecture and evolution. The Wuwamen accretionary complex in the Chinese South Tianshan contains a tectonic melange that witnessed the dynamic evolution from early accretion to final collision of the western CAOB with the Tarim Craton. We present geochronological and geochemical studies on the exotic blocks and metasedimentary matrix of the tectonic melange in order to refine the subduction-accretion processes in the CAOB. Geochemical and age data reveal that the exotic blocks are of diverse origins, including arc-related granite and arc basalt-like garnet amphibolite from the upper plate, and MORB-like amphibolite from the subducting slab. The blocks underwent subduction-related high-temperature metamorphism between ca. 397 and 340 Ma. Detrital zircons in the metasedimentary matrix are dominated by Paleozoic ages corresponding to the continuous arc magmatism in the Yili-Central Tianshan Block. This finding is consistent with the accretion of the Wuwamen complex on the southern margin of the Yili-Central Tianshan Block above the northward subducting South Tianshan Ocean. A ca. 307 Ma post-accretion granite dyke intruded the Wuwamen complex, thereby providing a minimum age limit for its terminal accretion. In conjunction with subduction-related magmatism, metamorphism, and sedimentation, the accretion of the Wuwamen accretionary complex was active during the early Ordovician to the late Carboniferous. Our new results reiterate that long-lasting accretionary processes in the South Tianshan Ocean and the terminal collision due to its closure exert a major control on the architecture of the southwestern CAOB.
WOS关键词ZIRCON U-PB ; OCEAN PLATE STRATIGRAPHY ; WESTERN TIANSHAN ; NW CHINA ; CONTINENTAL GROWTH ; TECTONIC EVOLUTION ; GEOCHRONOLOGICAL EVIDENCE ; METAMORPHIC EVOLUTION ; GEODYNAMIC EVOLUTION ; ALKALINE MAGMATISM
资助项目National Natural Science Foundation of China[42072079] ; National Natural Science Foundation of China[42172234] ; National Natural Science Foundation of China[41902232] ; National Natural Science Foundation of China[41390445] ; China Geological Survey[DD20190060] ; China Postdoctoral Science Foundation[2016M600127]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000763564800003
出版者AMER GEOPHYSICAL UNION
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 ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Geological Survey ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
源URL[http://ir.iggcas.ac.cn/handle/132A11/104979]  
专题地质与地球物理研究所_中国科学院矿产资源研究重点实验室
通讯作者Wang, Xin-Shui; Li, Ji-Lei
作者单位1.China Univ Geosci, Sch Earth Sci, State Key Lab Geol Proc & Mineral Resources, Wuhan, Peoples R China
2.Friedrich Alexander Univ Erlangen Nurnberg, GeoZentrum Nordbayern, Erlangen, Germany
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
5.Wuhan Ctr China Geol Survey, Lab Isotope Geochem, Wuhan, Peoples R China
6.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Xin-Shui,Klemd, Reiner,Li, Ji-Lei,et al. Paleozoic Subduction-Accretion in the Southern Central Asian Orogenic Belt: Insights From the Wuwamen Accretionary Complex of the Chinese South Tianshan[J]. TECTONICS,2022,41(2):27.
APA Wang, Xin-Shui.,Klemd, Reiner.,Li, Ji-Lei.,Gao, Jun.,Jiang, Tuo.,...&Xue, Sheng-Chao.(2022).Paleozoic Subduction-Accretion in the Southern Central Asian Orogenic Belt: Insights From the Wuwamen Accretionary Complex of the Chinese South Tianshan.TECTONICS,41(2),27.
MLA Wang, Xin-Shui,et al."Paleozoic Subduction-Accretion in the Southern Central Asian Orogenic Belt: Insights From the Wuwamen Accretionary Complex of the Chinese South Tianshan".TECTONICS 41.2(2022):27.

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来源：地质与地球物理研究所

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