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Petrogenesis of Early Paleozoic high Sr/Y intrusive rocks from the North Qilian orogen: Implication for diachronous continental collision
Yang, He1,2,3,4; Zhang, Hongfei2,3; Xiao, Wenjiao1,5; Luo, Biji2,3; Gao, Zhong2,3; Tao, Lu2,3; Zhang, Liqi2,3; Guo, Liang2,3
2020-02-01
Source PublicationLITHOSPHERE
ISSN1941-8264
Volume12Issue:1Pages:53-73
AbstractA 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.
DOI10.1130/L1129.1
Funding OrganizationNational 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
WOS KeywordMG ADAKITIC ROCKS ; U-PB ; SUBDUCTION-ZONE ; NW CHINA ; EXPERIMENTAL CONSTRAINTS ; TECTONIC EVOLUTION ; TIBETAN PLATEAU ; SOUTHERN MARGIN ; CRUSTAL THICKNESS ; MAGMATIC HISTORY
Language英语
Funding ProjectNational 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]
Funding OrganizationNational 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
WOS Research AreaGeochemistry & Geophysics ; Geology
WOS SubjectGeochemistry & Geophysics ; Geology
WOS IDWOS:000517774400004
PublisherGEOLOGICAL SOC AMER, INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95615
Collection岩石圈演化国家重点实验室
Corresponding AuthorYang, He
Affiliation1.Chinese Acad Sci, Xinjiang Res Ctr Mineral Resources, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China
2.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China
3.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Peoples R China
4.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
Recommended Citation
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.
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