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Final Assembly of the Southwestern Central Asian Orogenic Belt as Constrained by the Evolution of the South Tianshan Orogen: Links With Gondwana and Pangea

文献类型：期刊论文

作者Wang, Xin-Shui1,2,3; Klemd, Reiner3; Gao, Jun1,2,4; Jiang, Tuo5; Li, Ji-Lei1,2; Xue, Sheng-Chao6
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
出版日期2018-09-01
卷号123期号:9页码:7361-7388
关键词Central Asian orogenic belt Tianshan Wuwamen ophiolite Gondwana Pangea
ISSN号2169-9313
DOI10.1029/2018JB015689
英文摘要The South Tianshan Orogen marks the final assembly of the southwestern Central Asian Orogenic Belt (CAOB) and the Karakum-Tarim cratons. Here we present an integrated mineralogical, geochemical, and geochronological study of the Wuwamen ophiolitic melange in the South Tianshan to better understand the tectonic evolution of the western CAOB and its links to Gondwana and Pangea. Mantle peridotites with mineral compositions similar to those of abyssal peridotites and basalts with N-MORB geochemical affinities suggest that the Wuwamen ophiolite was formed in a mid-ocean ridge setting. Arc-related gabbro and plagiogranite stocks intruding the mantle peridotites yielded zircon U-Pb ages of 441.14.2 and 442.82.4Ma, indicating that the Wuwamen ophiolite got emplaced prior to similar to 440Ma. Sericite-quartz schist from the ophiolitic melange matrix with abundant 481-319 Ma detrital zircon grains is crosscut by a two-mica granite dike with a zircon U-Pb age of 321.31.7Ma, thereby constraining the formation of the Wuwamen ophiolitic melange at similar to 320Ma. In conjunction with published data, we propose that the South Tianshan Ocean opened in the late Neoproterozoic and promoted the subsequent separation of microcontinents in the western CAOB from the northeast Gondwana margin during Gondwana assembly. Furthermore, the closure of the South Tianshan Ocean led to the final assembly of the southwestern CAOB and the Karakum-Tarim cratons and their incorporation into Pangea at similar to 320Ma.
WOS关键词PALEOZOIC TECTONIC EVOLUTION ; U-PB GEOCHRONOLOGY ; TRACE-ELEMENT COMPOSITION ; OCEAN PLATE STRATIGRAPHY ; WESTERN CHINESE TIANSHAN ; PERMIAN VOLCANIC-ROCKS ; NORTHERN TARIM CRATON ; KYRGYZ TIEN-SHAN ; HP-UHP ROCKS ; NW-CHINA
资助项目National Natural Science Foundation of China[41390445] ; National Natural Science Foundation of China[41025008] ; China Geological Survey[DD20160345] ; China Postdoctoral Science Foundation[2016M600127] ; Sino-German (CSC-DAAD) Postdoc Scholarship Program
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000447858800012
出版者AMER GEOPHYSICAL UNION
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geological Survey ; China Geological Survey ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Sino-German (CSC-DAAD) Postdoc Scholarship Program ; Sino-German (CSC-DAAD) Postdoc Scholarship Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geological Survey ; China Geological Survey ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Sino-German (CSC-DAAD) Postdoc Scholarship Program ; Sino-German (CSC-DAAD) Postdoc Scholarship Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geological Survey ; China Geological Survey ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Sino-German (CSC-DAAD) Postdoc Scholarship Program ; Sino-German (CSC-DAAD) Postdoc Scholarship Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Geological Survey ; China Geological Survey ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Sino-German (CSC-DAAD) Postdoc Scholarship Program ; Sino-German (CSC-DAAD) Postdoc Scholarship Program
源URL[http://ir.iggcas.ac.cn/handle/132A11/89131]  
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; Gao, Jun
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China
3.Univ Erlangen Nurnberg, GeoZentrum Nordbayern, Erlangen, Germany
4.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China
5.China Geol Survey, Lab Isotope Geochem, Wuhan Ctr, Wuhan, Hubei, 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,Gao, Jun,et al. Final Assembly of the Southwestern Central Asian Orogenic Belt as Constrained by the Evolution of the South Tianshan Orogen: Links With Gondwana and Pangea[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2018,123(9):7361-7388.
APA Wang, Xin-Shui,Klemd, Reiner,Gao, Jun,Jiang, Tuo,Li, Ji-Lei,&Xue, Sheng-Chao.(2018).Final Assembly of the Southwestern Central Asian Orogenic Belt as Constrained by the Evolution of the South Tianshan Orogen: Links With Gondwana and Pangea.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,123(9),7361-7388.
MLA Wang, Xin-Shui,et al."Final Assembly of the Southwestern Central Asian Orogenic Belt as Constrained by the Evolution of the South Tianshan Orogen: Links With Gondwana and Pangea".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 123.9(2018):7361-7388.

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来源：地质与地球物理研究所

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