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Composition, Provenance, and Tectonic Setting of the Southern Kangurtag Accretionary Complex in the Eastern Tianshan, NW China: Implications for the Late Paleozoic Evolution of the North Tianshan Ocean

文献类型：期刊论文

作者Chen, Zhenyu1,3; Xiao, Wenjiao1,3,4; Windley, Brian F.5; Schulmann, Karel2,6; Mao, Qigui7; Zhang, Zhiyong1,3; Zhang, Ji'en1,3; Deng, Chen1,3; Song, Shuaihua1,3
刊名TECTONICS
出版日期2019-08-01
卷号38期号:8页码:2779-2802
关键词Central Asian Orogenic Belt Eastern Tianshan Late Carboniferous-Permian accretionary complex ocean plate stratigraphy
ISSN号0278-7407
DOI10.1029/2018TC005385
英文摘要The Kangurtag belt in the Eastern Tianshan, connecting the Dananhu Arc with the Central Tianshan Arc, contains diagnostic rocks of accretionary origin, and thus provides key information about the evolution of the North Tianshan Ocean. The Southern Kangurtag belt is composed of two types of melange. Type I melange consists of Enriched Mid-Ocean Ridge Basalt-type pillow basalts, draped by biohermal limestones and carbonate-siliceous sediments of a slope facies, and siliceous argillites from a hemipelagic-pelagic environment that together make up a seamount assemblage. In Type II melange, Normal Mid-Ocean Ridge Basalt and ribbon cherts were dismembered and entrained in a clastic matrix, showing a "block-in-matrix" structure. Detrital zircons of four sandstones from Devonian and Carboniferous strata within the melanges have a predominant age population of 410-430 Ma and a distinct Proterozoic cluster around 1.4-1.6 Ga. The epsilon Hf(t) values of Phanerozoic zircons range from -25.1 to +8.6. Such age patterns, typical of the Central Tianshan Arc, and the Hf isotopic data indicate that these sedimentary successions were deposited on the northern margin of the Central Tianshan Arc. The youngest detrital zircon age of 317 Ma provides an upper limit for the time of formation of the Southern Kangurtag accretionary complex. Therefore, we suggest that the Southern Kangurtag belt comprises an accretionary complex that developed during southward subduction of the North Tianshan Ocean beneath the Central Tianshan Arc. This subduction began in the Early Ordovician and may have lasted until the Late Carboniferous-Permian.
WOS关键词ZIRCON U-PB ; ASIAN OROGENIC BELT ; MID-ATLANTIC RIDGE ; HF ISOTOPIC COMPOSITIONS ; DETRITAL ZIRCON ; TRACE-ELEMENT ; GEOCHEMICAL CHARACTERISTICS ; PLATE STRATIGRAPHY ; KANGGUERTAGE OPHIOLITE ; CONTINENTAL GROWTH
资助项目National Key R&D Program of China[2017YFC0601206] ; National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41730210] ; National Natural Science Foundation of China[41390441] ; National Natural Science Foundation of China[41230207] ; National Natural Science Foundation of China[41202150] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-SYS012] ; Charles University[PROGRESS Q45]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000497850300010
出版者AMER GEOPHYSICAL UNION
资助机构National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Charles University ; Charles University ; Charles University ; Charles University ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Charles University ; Charles University ; Charles University ; Charles University ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Charles University ; Charles University ; Charles University ; Charles University ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Charles University ; Charles University ; Charles University ; Charles University
源URL[http://ir.iggcas.ac.cn/handle/132A11/95811]  
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Xiao, Wenjiao
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
2.Geosci Montpellier UMR CNRS 5243, Montpellier, France
3.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resources, Urumqi, Peoples R China
5.Univ Leicester, Dept Geol, Leicester, Leics, England
6.Charles Univ Prague, IPSG, Fac Sci, Prague, Czech Republic
7.Beijing Inst Geol Mineral Resources, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Zhenyu,Xiao, Wenjiao,Windley, Brian F.,et al. Composition, Provenance, and Tectonic Setting of the Southern Kangurtag Accretionary Complex in the Eastern Tianshan, NW China: Implications for the Late Paleozoic Evolution of the North Tianshan Ocean[J]. TECTONICS,2019,38(8):2779-2802.
APA Chen, Zhenyu.,Xiao, Wenjiao.,Windley, Brian F..,Schulmann, Karel.,Mao, Qigui.,...&Song, Shuaihua.(2019).Composition, Provenance, and Tectonic Setting of the Southern Kangurtag Accretionary Complex in the Eastern Tianshan, NW China: Implications for the Late Paleozoic Evolution of the North Tianshan Ocean.TECTONICS,38(8),2779-2802.
MLA Chen, Zhenyu,et al."Composition, Provenance, and Tectonic Setting of the Southern Kangurtag Accretionary Complex in the Eastern Tianshan, NW China: Implications for the Late Paleozoic Evolution of the North Tianshan Ocean".TECTONICS 38.8(2019):2779-2802.

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来源：地质与地球物理研究所

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