Petrogenesis of the Neoarchean diorite-granite association in the Wangwushan area, southern North China Craton: Implications for continental crust evolution

doi:10.1016/j.precamres.2017.12.040

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

	Petrogenesis of the Neoarchean diorite-granite association in the Wangwushan area, southern North China Craton: Implications for continental crust evolution
	Zhou, Yanyan 1; Zhao, Taiping 2; Sun, Qianying 2; Zhai, Mingguo 1; Lan, Zhongwu 1; Hofmann, Axel 3
刊名	PRECAMBRIAN RESEARCH
	2019-06-15
卷号	326 页码:84-104
关键词	Diorites High-K granites Petrogenesis Subduction North China Craton
ISSN号	0301-9268
DOI	10.1016/j.precamres.2017.12.040
英文摘要	The crustal evolutionary scenarios and geodynamic driving mechanisms of the North China Craton (NCC) during the late Neoarchean (similar to 2.5 Ga) are still lacking comprehensive understanding due to subsequent strong deformation and metamorphic overprinting events. The widespread similar to 2.5 Ga tectono-thermal activities throughout the NCC can be studied to constrain the tectonic evolution at this period. The Wangwushan Neoarchean diorites and high-K granites in the southern NCC were formed at similar to 2.52-2.51 Ga. The diorites have high Mg#, Th, Y, low Sr and Sr/Y ratios and variably positive zircon epsilon(Hf)(t) (+2.4 - +8.4) and whole rock epsilon(Nd)(t) values (-0.26 - +3.24), indicating a depleted mantle wedge source which was metasomatized by the melted sub-ducted silicic sediments. The depleted Nb, Ti and enriched LILE and Pb features indicate that the diorites were derived from slightly metasomatized mantle wedge in a subduction-related setting. The high-K granites show a shoshonite affinity and peraluminous features. The rocks have low 10,000 Ga/Al ratios, Zr and Zr + Nb + Ce + Y concentrations, and calculated zircon saturation temperature (T-Zr = 686-837 degrees C, 774 degrees C on average), belong to fractionated I-type granite. Low Sr, Y, flat HREE, and negative Eu anomalies indicate the presence of Ca-rich plagioclase and absence of garnet in the residue during partial melting of the sources, thus further indicating a shallower source with a pressure of < 10 kbar and a depth less than 35 km. Zircon Hf and whole-rock Nd isotopic compositions (epsilon(Hf)(t) = -2.7 to +7.4, epsilon(Nd)(t) = +1.25 to +3.09, T-DM2 ages are 3.20-2.56 Ga and 3.20-2.65 Ga, respectively) are identical to those of the Neoarchean TTGs, amphibolites and diorites in the Wangwushan area, which likely represent plausible sources for the high-K granites. The partial melting was probably triggered by underplating of mantle-derived mafic magmas in a post-collision setting. Together with 2.57-2.52 Ga TTGs and amphibolites in this area, the magmatic spectrum of these igneous rocks are typical of subduction-related magmatism, involving multi-stage processes in a convergent plate margin, and likely record a transitional regime from early oceanic plate subduction to late post-collisional extension.
资助项目	National Natural Science Foundation of China[41572176] ; National Natural Science Foundation of China[41573041] ; Key Program of National Natural Science Foundation of China[41530208]
WOS关键词	U-PB GEOCHRONOLOGY ; A-TYPE GRANITES ; LU-HF ISOTOPES ; TRONDHJEMITE-GRANODIORITE TTG ; EASTERN HEBEI PROVINCE ; S-TYPE GRANITES ; I-TYPE GRANITES ; LIAO-JI BELT ; GREENSTONE-BELT ; TECTONIC EVOLUTION
WOS研究方向	Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000469157300006
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of National Natural Science Foundation of China ; Key Program of National Natural Science Foundation of China ; Key Program of National Natural Science Foundation of China ; Key Program of National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of National Natural Science Foundation of China ; Key Program of National Natural Science Foundation of China ; Key Program of National Natural Science Foundation of China ; Key Program of National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of National Natural Science Foundation of China ; Key Program of National Natural Science Foundation of China ; Key Program of National Natural Science Foundation of China ; Key Program of National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of National Natural Science Foundation of China ; Key Program of National Natural Science Foundation of China ; Key Program of National Natural Science Foundation of China ; Key Program of National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/92259]
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	Zhou, Yanyan
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou 510640, Guangdong, Peoples R China 3.Univ Johannesburg, Dept Geol, ZA-2006 Auckland Pk, South Africa
推荐引用方式 GB/T 7714	Zhou, Yanyan,Zhao, Taiping,Sun, Qianying,et al. Petrogenesis of the Neoarchean diorite-granite association in the Wangwushan area, southern North China Craton: Implications for continental crust evolution[J]. PRECAMBRIAN RESEARCH,2019,326:84-104.
APA	Zhou, Yanyan,Zhao, Taiping,Sun, Qianying,Zhai, Mingguo,Lan, Zhongwu,&Hofmann, Axel.(2019).Petrogenesis of the Neoarchean diorite-granite association in the Wangwushan area, southern North China Craton: Implications for continental crust evolution.PRECAMBRIAN RESEARCH,326,84-104.
MLA	Zhou, Yanyan,et al."Petrogenesis of the Neoarchean diorite-granite association in the Wangwushan area, southern North China Craton: Implications for continental crust evolution".PRECAMBRIAN RESEARCH 326(2019):84-104.