中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Petrogenesis of similar to 2.1 Ga mafic and granitic magmatism and tectonic implication of Jiaobei Terrane in North China Craton

文献类型:期刊论文

作者Wang, Xinping1,3; Oh, Chang Whan1; Peng, Peng2; Zhao, Lei2; Zhai, Mingguo2; Lee, Seung Hwan1
刊名LITHOS
出版日期2020-12-15
卷号378页码:19
关键词North China Craton Jiao-Liao-Ji belt Jiaobei Terrane Paleoproterozoic magmatism Back-arc basin
ISSN号0024-4937
DOI10.1016/j.lithos.2020.105806
英文摘要Paleoproterozoic magmatism in the Jiaobei Terrane has not been well studied, but it is important for understanding the tectonic evolution of Jiao-Liao-Ji belt in the east North China Craton. In this work, similar to 2.1 Ga mafic and granitic intrusions in the Jiaobei Terrane, including the Xiliu amphibolite, Dongbaishishan granite and Gujiacun granite, are studied in detail. The Xiliu amphibolite intruded the Archean basement and the Dongbaishishan granite intruded the Paleoproterozoic Jingshan Group. SHRIMP zircon U-Pb geochronology shows that both amphibolite and granite were emplaced simultaneously at similar to 2.1 Ga and were metamorphosed at similar to 1.87-1.84 Ga. The similar to 2.1 Ga Xiliu amphibolite samples show a tholeiitic basalt composition; they exhibit enriched light rare earth elements (REEs) and large ion lithophile elements (LILEs, e.g., U and K), but depleted high field strength elements (HFSEs, e.g., Nb, Ta, P, Zr, Hf and Ti). They experienced the fractional crystallization of clinopyroxene. Whole-rock Nd isotopes show that the similar to 2.1 Ga amphibolites were generated from partial melting of the Archean enriched mantle, and that the mantle source was affected by the addition of subduction-related fluids/melts. The similar to 2.1 Ga Dongbaishishan and Gujiacun granite samples in the Jiaobei Terrane show granodiorite to granite compositions with metaluminous and calc-alkaline characteristics. They show decreasing Fe2O3T, TiO2, Al2O3, CaO, Na2O and P2O5, but increasing K2O, with increasing SiO2 contents. This indicates that Fe-Ti oxide, plagioclase and apatite were fractionated during magmatic evolution, which is confirmed by the negative Eu, Sr, P, and Ti anomalies. Compared with the 2.18 Ga A-type granites derived from partial melting of tonalites in the Jiaobei Terrane, major elemental geochemistry and zircon Hf isotopes showed that similar to 2.1 Ga granites were generated from partial melting of the low-K mafic lower crust possibly due to mantle-derived magmatic underplating. The similar to 2.1 Ga Jiaobei amphibolites show similar geochemical and isotopic characteristics to the contemporaneous mafic rocks in the north Liaoji and south Anhui areas of the Jiao-Liao-Ji belt. Together with the volcano-sedimentary series and A(2)- and I-type granitic gneiss in the belt, these similar to 2.1 Ga mafic rocks probably formed in a subduction-related back-arc extension environment. In addition, both episodes of the 2.18 Ga and 2.1 Ga granites in the Jiaobei Terrane show high-temperature magmatic characters, which can be attributed to mantle-derived magmatic heating. The younger episode (2.1 Ga) granites indicate that there was stronger mantle-derived magmatism in a back-arc extended zone. (C) 2020 Elsevier B.V. All rights reserved.
资助项目National Research Foundation of Korea[NRF-2017R1A2B2011224] ; National Research Foundation of Korea[NRF-2017K1A1A201380] ; Chinese Academy of Sciences[132A11KYSB20180042] ; National Natural Science Foundation of China[NSFC-41890833] ; National Natural Science Foundation of China[NSFC-41772192]
WOS研究方向Geochemistry & Geophysics ; Mineralogy
语种英语
WOS记录号WOS:000598169500004
出版者ELSEVIER
资助机构National Research Foundation of Korea ; National Research Foundation of Korea ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Research Foundation of Korea ; National Research Foundation of Korea ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Research Foundation of Korea ; National Research Foundation of Korea ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Research Foundation of Korea ; National Research Foundation of Korea ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/99935]  
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Wang, Xinping; Oh, Chang Whan
作者单位1.Jeonbuk Natl Univ, Dept Earth & Environm Sci, Jeonju 54896, South Korea
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
3.Shanxi Normal Univ, Sch Geog Sci, Linfen 041000, Shanxi, Peoples R China
推荐引用方式
GB/T 7714
Wang, Xinping,Oh, Chang Whan,Peng, Peng,et al. Petrogenesis of similar to 2.1 Ga mafic and granitic magmatism and tectonic implication of Jiaobei Terrane in North China Craton[J]. LITHOS,2020,378:19.
APA Wang, Xinping,Oh, Chang Whan,Peng, Peng,Zhao, Lei,Zhai, Mingguo,&Lee, Seung Hwan.(2020).Petrogenesis of similar to 2.1 Ga mafic and granitic magmatism and tectonic implication of Jiaobei Terrane in North China Craton.LITHOS,378,19.
MLA Wang, Xinping,et al."Petrogenesis of similar to 2.1 Ga mafic and granitic magmatism and tectonic implication of Jiaobei Terrane in North China Craton".LITHOS 378(2020):19.

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来源:地质与地球物理研究所

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