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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
Wang, Xin-Shui1; Klemd, Reiner2; Li, Ji-Lei3; Gao, Jun3,4; Jiang, Tuo5; Zong, Ke-Qing1; Xue, Sheng-Chao6
2022-02-01
Source PublicationTECTONICS
ISSN0278-7407
Volume41Issue:2Pages:27
AbstractAccretionary 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.
Keywordsubduction accretionary complex Tianshan Central Asian Orogenic Belt metamorphism zircon U-Pb
DOI10.1029/2021TC006965
Funding OrganizationNational 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
WOS KeywordZIRCON U-PB ; OCEAN PLATE STRATIGRAPHY ; WESTERN TIANSHAN ; NW CHINA ; CONTINENTAL GROWTH ; TECTONIC EVOLUTION ; GEOCHRONOLOGICAL EVIDENCE ; METAMORPHIC EVOLUTION ; GEODYNAMIC EVOLUTION ; ALKALINE MAGMATISM
Language英语
Funding ProjectNational 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]
Funding OrganizationNational 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
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000763564800003
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/104979
Collection矿产资源研究院重点实验室
Corresponding AuthorWang, Xin-Shui; Li, Ji-Lei
Affiliation1.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
Corresponding Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
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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