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

doi:10.1080/00206814.2019.1678074

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 岩石圈演化国家重点实验室

	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-Ming 3; Xu, Wen-Liang 2,3; Sun, Chen-Yang 3; Wang, Feng 3; Li, Yu 1
刊名	INTERNATIONAL GEOLOGY REVIEW
	2019-10-17
页码	22
关键词	North China Craton late Mesozoic magmatism geochronology geochemistry Paleo-Pacific Plate
ISSN号	0020-6814
DOI	10.1080/00206814.2019.1678074
英文摘要	This 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.
资助项目	National Natural Science Foundation of China[91858211] ; National Key Research and Development Project[2016YFC0600103]
WOS关键词	ZIRCON U-PB ; MESOZOIC VOLCANIC-ROCKS ; GREAT XINGAN RANGE ; TRONDHJEMITE-GRANODIORITE TTG ; METAMORPHIC CORE COMPLEX ; ACCRETIONARY COMPLEX ; LIAODONG PENINSULA ; JILIN PROVINCE ; PACIFIC PLATE ; INTRUSIVE ROCKS
WOS研究方向	Geology
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000490481700001
资助机构	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 ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Project ; National Key Research and Development Project
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/93875]
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	Xu, Wen-Liang
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China 2.Minist Land & Resources China, Key Lab Mineral Resources Evaluat Northeast Asia, Changchun, Jilin, Peoples R China 3.Jilin Univ, Coll Earth Sci, 2199 Jianshe St, Changchun 130061, Jilin, Peoples R China
推荐引用方式 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.