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Petrogenesis of Early Paleozoic high Sr/Y intrusive rocks from the North Qilian orogen: Implication for diachronous continental collision

文献类型：期刊论文

作者Yang, He1,3,4,5; Zhang, Hongfei1,4; Xiao, Wenjiao2,5; Luo, Biji1,4; Gao, Zhong1,4; Tao, Lu1,4; Zhang, Liqi1,4; Guo, Liang1,4
刊名LITHOSPHERE
出版日期2020-02-01
卷号12期号:1页码:53-73
ISSN号1941-8264
DOI10.1130/L1129.1
英文摘要A combination of U-Pb zircon ages and geochemical and Sr-Nd-Hf isotopic data are presented for the Early Paleozoic granodiorites from the Haoquangou and Baimawa plutons in order to probe the crustal thickness variation of the eastern North Qilian and the diachronous evolution of the North Qilian orogen.The granodiorites formed at 436-435 Ma and have high Sr/Y ratios (63-117). Elemental and isotopic data combined with geochemical modeling and comparisons with experimental data suggest that they were produced from the melting of relatively juvenile mafic rocks in the thickened lower crust.Together with other petrological and geochemical data and the calculation of variation in crustal thickness, this indicates that the eastern North Qilian experienced clear crustal thickening and thinning from the Late Ordovician to Late Silurian. Based on available data, we suggest that diachronous collision from east to west, which probably resulted in the distinct intensity of orogenesis between eastern and western North Qilian, can well account for the differential distribution of Early Paleozoic high Sr/Y magmatism and other geological differences between the eastern and western parts of the North Qilian. Our study also implies that diachronous collision may lead to, apart from distinct metamorphic, structural and sedimentary responses, the large differences in magmatism and deep crustal processes along the orogenic strike.
WOS关键词MG ADAKITIC ROCKS ; U-PB ; SUBDUCTION-ZONE ; NW CHINA ; EXPERIMENTAL CONSTRAINTS ; TECTONIC EVOLUTION ; TIBETAN PLATEAU ; SOUTHERN MARGIN ; CRUSTAL THICKNESS ; MAGMATIC HISTORY
资助项目National Natural Science Foundation of China[41703041] ; National Natural Science Foundation of China[41573021] ; CAS "Light of West China" Program[2016-QNXZ-B-19] ; China Postdoctoral Science Foundation[2017M613262]
WOS研究方向Geochemistry & Geophysics ; Geology
语种英语
出版者GEOLOGICAL SOC AMER, INC
WOS记录号WOS:000517774400004
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS "Light of West China" Program ; CAS "Light of West China" Program ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS "Light of West China" Program ; CAS "Light of West China" Program ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS "Light of West China" Program ; CAS "Light of West China" Program ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS "Light of West China" Program ; CAS "Light of West China" Program ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
源URL[http://ir.iggcas.ac.cn/handle/132A11/95615]  
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Yang, He
作者单位1.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China
4.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Peoples R China
5.Chinese Acad Sci, Xinjiang Res Ctr Mineral Resources, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China
推荐引用方式
GB/T 7714		 Yang, He,Zhang, Hongfei,Xiao, Wenjiao,et al. Petrogenesis of Early Paleozoic high Sr/Y intrusive rocks from the North Qilian orogen: Implication for diachronous continental collision[J]. LITHOSPHERE,2020,12(1):53-73.
APA Yang, He.,Zhang, Hongfei.,Xiao, Wenjiao.,Luo, Biji.,Gao, Zhong.,...&Guo, Liang.(2020).Petrogenesis of Early Paleozoic high Sr/Y intrusive rocks from the North Qilian orogen: Implication for diachronous continental collision.LITHOSPHERE,12(1),53-73.
MLA Yang, He,et al."Petrogenesis of Early Paleozoic high Sr/Y intrusive rocks from the North Qilian orogen: Implication for diachronous continental collision".LITHOSPHERE 12.1(2020):53-73.

入库方式： OAI收割

来源：地质与地球物理研究所

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