Early Mesozoic alkaline complexes in the northern North China Craton:;Implications for cratonic lithospheric destruction

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	Early Mesozoic alkaline complexes in the northern North China Craton:;Implications for cratonic lithospheric destruction
	Zhang, Shuan-Hong 4; Zhao, Yue ; Ye, Hao ; Hou, Ke-Jun ; Li, Chao-Feng
刊名	LITHOS
	2012
卷号	155 页码:1-18
关键词	Zircon and baddeleyite U-Pb dating Alkaline complex Triassic Lithospheric destruction Asthenosphere-lithospheric mantle interaction North China Craton (NCC)
ISSN号	058EN
英文摘要	Early Mesozoic alkaline intrusive complexes are widespread in the northern North China Craton (NCC) and constitute an E-W trending alkaline magmatic belt that is more than 1500 km long along the northern Sino-Korean Craton. Our new zircon and baddeleyite U-Pb dating results of the Yongfucun. Yaojiazhuang and Sungezhuang alkaline complexes combined with previous geochronological data indicate emplacement of the E-W trending alkaline belt in the northern NCC during the Middle-Late Triassic at around 235-220 Ma. Geochemical and Sr-Nd-Hf isotopic data suggest a common source region for the syenites, pyroxene syenites and mafic rocks within the complexes. They were mainly derived from a metasomatized enriched lithospheric mantle; however some materials from depleted asthenospheric mantle have been involved during formation of these alkaline complexes. Involvement of depleted asthenospheric mantle materials indicates upwelling of the asthenospheric mantle and asthenosphere-lithospheric mantle interaction in northern NCC during the Early Mesozoic. Initiation of lithospheric thinning and destruction of the northern NCC occurred in the Middle-late Triassic, which is much earlier than in other parts of the NCC during the Late Mesozoic. Delamination at the root of the subduction-induced thick lithospheric mantle is likely main mechanism for the Early Mesozoic lithospheric thinning and destruction of the northern NCC. Multiple subduction of oceanic plates beneath the northern, southern and eastern parts of the NCC and interactions of the surrounding orogenesis during the Late Paleozoic to Mesozoic may play important roles on the Late Mesozoic lithospheric destruction of the NCC. (C) 2012 Elsevier B.V. All rights reserved.
学科主题	固体地球物理学
WOS关键词	SINO-KOREAN CRATON ; ULTRAMAFITE-SYENITE COMPLEX ; CRUST-MANTLE ; INTERACTION ; SOUTHERN SIERRA-NEVADA ; U-PB GEOCHRONOLOGY ; A-TYPE ; GRANITOIDS ; TECTONIC IMPLICATIONS ; INNER-MONGOLIA ; ISOTOPIC ; CHARACTERISTICS ; HEBEI PROVINCE
WOS研究方向	Geochemistry & Geophysics ; Mineralogy
语种	英语
出版者	This research was financially supported by the National Natural Science;Foundation of China (40972149), the China Geological Survey;(1212011085476) and the SinoProbe Program of China (SinoProbe-08-01-03).;We thank X.H. Li, Q.L Li, Y. Liu, G.Q. Tang, B., Song, Y.S. Liu, X.M.;Liu, Z.C. Hu, H. Li, X.D. Jin, X. Yan and A.P. Yu for their analytical;assistance. Careful and constructive reviews by F. Aydin, G.N. Eby;(Editor) and an anonymous reviewer significantly improved the quality of;the manuscript.
WOS记录号	WOS:000312617000001
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39886]
专题	中国地质科学院矿产资源研究所
作者单位	1.Chinese Acad Geol Sci, Inst Geomech, MLR Key Lab Paleomagnetism & Paleotecton Reconstr, Beijing 100081, Peoples R China. 2.Chinese Acad Geol Sci, Inst Mineral Resources, MLR Key Lab Metallogeny & Mineral Assessment, Beijing 100037, Peoples R China. 3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China. 4.中国地质科学院地质力学研究所
推荐引用方式 GB/T 7714	Zhang, Shuan-Hong,Zhao, Yue,Ye, Hao,et al. Early Mesozoic alkaline complexes in the northern North China Craton:;Implications for cratonic lithospheric destruction[J]. LITHOS,2012,155:1-18.
APA	Zhang, Shuan-Hong,Zhao, Yue,Ye, Hao,Hou, Ke-Jun,&Li, Chao-Feng.(2012).Early Mesozoic alkaline complexes in the northern North China Craton:;Implications for cratonic lithospheric destruction.LITHOS,155,1-18.
MLA	Zhang, Shuan-Hong,et al."Early Mesozoic alkaline complexes in the northern North China Craton:;Implications for cratonic lithospheric destruction".LITHOS 155(2012):1-18.