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Tectonic nature of the NE Asian continental margin during the Late Jurassic?Early Cretaceous: constraints from the geochronology and geochemistry of igneous rocks in the NE North China Craton
Zhang, Xiao-Ming1; Xu, Wen-Liang1,2; Sun, Chen-Yang1; Wang, Feng1; Li, Yu3
2019-10-17
Source PublicationINTERNATIONAL GEOLOGY REVIEW
ISSN0020-6814
Pages22
AbstractThis paper presents geochronological, geochemical, and zircon Hf?O isotope data for late Mesozoic intrusive rocks from the northeastern North China Craton (NCC), with the aim of constraining the late Mesozoic tectonic nature of the NE Asian continental margin. U?Pb zircon data indicate that the Late Mesozoic magmatism in the northeastern NCC can be subdivided into two stages: Late Jurassic (161???156?Ma) and Early Cretaceous (125???120?Ma). Late Jurassic magmatism consists mainly of monzogranites. These monzogranites display high Sr/Y ratios and the tetrad effect in their REE, respectively, and have negative ?(Hf)(t) values (?22.6 to ?15.8). The former indicates that the primary magma was generated by partial melting of thickened NCC lower crust, the latter suggests that the monzogranites were crystallized from highly fractionated magma, with the primary magma derived from partial melting of lower continental crust. Combined with the spatial distribution and rock associations of the Late Jurassic granitoids, we conclude that the Late Jurassic magmatism in the eastern NCC formed in a compressional environment related to oblique subduction of the Paleo-Pacific Plate beneath the Eurasia. The Early Cretaceous magmatism consists mainly of granitoids and quartz diorites. The quartz diorites formed by mixing of melts derived from the mantle and lower crust. The coeval granitoids are classified as high-K calc-alkaline and metaluminous to weakly peraluminous series. Some of the granitoids are similar to A-type granites. The granitoid ?(Hf)(t) values and T-DM2 range from ?14.3 to ?1.4 and 2089 to 1274?Ma, respectively. These values indicate that their primary magma was derived from partial melting of lower crustal material of the NCC, but with a contribution of mantle-derived material. We therefore conclude that Early Cretaceous magmatism in the northeastern NCC occurred in an extensional environment related to westward subduction of the Paleo-Pacific Plate beneath Eurasia.
KeywordNorth China Craton late Mesozoic magmatism geochronology geochemistry Paleo-Pacific Plate
DOI10.1080/00206814.2019.1678074
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project
WOS KeywordZIRCON U-PB ; MESOZOIC VOLCANIC-ROCKS ; GREAT XINGAN RANGE ; TRONDHJEMITE-GRANODIORITE TTG ; METAMORPHIC CORE COMPLEX ; ACCRETIONARY COMPLEX ; LIAODONG PENINSULA ; JILIN PROVINCE ; PACIFIC PLATE ; INTRUSIVE ROCKS
Language英语
Funding ProjectNational Natural Science Foundation of China[91858211] ; National Key Research and Development Project[2016YFC0600103]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project
WOS Research AreaGeology
WOS SubjectGeology
WOS IDWOS:000490481700001
PublisherTAYLOR & FRANCIS INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/93875
Collection岩石圈演化国家重点实验室
Corresponding AuthorXu, Wen-Liang
Affiliation1.Jilin Univ, Coll Earth Sci, 2199 Jianshe St, Changchun 130061, Jilin, Peoples R China
2.Minist Land & Resources China, Key Lab Mineral Resources Evaluat Northeast Asia, Changchun, Jilin, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Xiao-Ming,Xu, Wen-Liang,Sun, Chen-Yang,et al. Tectonic nature of the NE Asian continental margin during the Late Jurassic?Early Cretaceous: constraints from the geochronology and geochemistry of igneous rocks in the NE North China Craton[J]. INTERNATIONAL GEOLOGY REVIEW,2019:22.
APA Zhang, Xiao-Ming,Xu, Wen-Liang,Sun, Chen-Yang,Wang, Feng,&Li, Yu.(2019).Tectonic nature of the NE Asian continental margin during the Late Jurassic?Early Cretaceous: constraints from the geochronology and geochemistry of igneous rocks in the NE North China Craton.INTERNATIONAL GEOLOGY REVIEW,22.
MLA Zhang, Xiao-Ming,et al."Tectonic nature of the NE Asian continental margin during the Late Jurassic?Early Cretaceous: constraints from the geochronology and geochemistry of igneous rocks in the NE North China Craton".INTERNATIONAL GEOLOGY REVIEW (2019):22.
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