Distribution pattern of age and geochemistry of 2.18-2.14 Ga I- and A-type granites and their implication for the tectonics of the Liao-Ji belt in the North China Craton
文献类型：期刊论文
| 作者 | Wang, Xinping1,2,3; Oh, Chang Whan2,3; Peng, Peng4; Zhai, Mingguo4; Wang, Xiaohan2,3; Lee, Bo Young2,3 |
| 刊名 | LITHOS
 |
| 出版日期 | 2020-07-01 |
| 卷号 | 364页码:18 |
| 关键词 | Liao-Ji belt Paleoproterozoic Liaoji granites Arc-related I-type granites Back-arc basin |
| ISSN号 | 0024-4937 |
| DOI | 10.1016/j.lithos.2020.105518 |
| 英文摘要 | Determining the petrogenesis and tectonic environment of the 2.18-2.14 Ga Liaoji granites is important to understand the Paleoproterozoic tectonic evolution of the Liao-Ji belt in the North China Craton. The Muniuhe granitic pluton is one representative of the Liaoji granites; it is located in the northwestern part of the Liao-Ji belt and is composed of syenogranite and granodiorite that intruded at similar to 2.18 Ga and were metamorphosed at similar to 1.88 Ga. Geochemically, the Muniuhe granitic pluton shows a magnesian and weakly peraluminous character, with low REEs, 10,000 x Ga/Al and Zr + Nb + Ce + Y values, and negative Nb and Ta anomalies, typical of arc-related I-type granite. It was formed by partial melting of Archean crustal material at low temperatures in oxygenated and hydrous conditions and then underwent crystallization differentiation of feldspar. The results of this study, together with those of previous studies investigating the Liaoji granites, indicate that the formation of the 2.18-2.14 Ga Liaoji granites (including the Muniuhe granitic pluton) can be subdivided into three stages: 1) the formation of similar to 2.18 Ga granites with A(2)-type characteristics (the Mafeng-Longchang, Jiguanshan, and Laoheishan-Yongdian granitic plutons), and similar to 2.18 Ga granites with arc-related I-type characteristics (the Muniuhe granitic pluton) in the northwestern and southeastern parts of the Liao-Ji belt; 2) the formation of similar to 2.16 Ga granites with arc-related I- and A(2)-type characteristics (Hupiyu-Hadabei, Simenzi-Gujiabao, and Qianzhuogou granitic plutons) in the central part with a NE-trending distribution; and 3) the formation of similar to 2.14 Ga granites (the Dafangshen granitic pluton) with A(2)-type characteristics in the central part. The intrusion ages show a trend to become younger from the margins to the center and the geochemical characteristics of these plutons indicate that they formed during the extension of a back-arc basin related to partial melting of the Archean continental crust. Together with the Liaohe Group and 2.13-2.11 Ga mafic intrusions, the Liaoji granites indicate that the existence of a back-arc basin extension during 2.18-2.11 Ga in the Liao-Ji belt. (C) 2020 Elsevier 13.V. All rights reserved. |
| WOS关键词 | PALEOPROTEROZOIC MONZOGRANITIC GNEISSES ; HF ISOTOPIC COMPOSITIONS ; PB ZIRCON GEOCHRONOLOGY ; META-MAFIC ROCKS ; U-PB ; METASEDIMENTARY ROCKS ; METAMORPHIC ROCKS ; EASTERN BLOCK ; KUANDIAN AREA ; OROGENIC BELT |
| 资助项目 | National Research Foundation of Korea[NRF-2017R1A2B2011224] ; National Research Foundation of Korea[NRF-2017K1A1A201380] ; National Natural Science Foundation of China[NSFC-41890833] |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
| 语种 | 英语 |
| WOS记录号 | WOS:000536183500015 |
| 出版者 | ELSEVIER |
| 资助机构 | National Research Foundation of Korea ; National Research Foundation of Korea ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/96678]  |
| 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 | Oh, Chang Whan |
| 作者单位 | 1.Shanxi Normal Univ, Sch Geog Sci, Linfen 041000, Shanxi, Peoples R China 2.Jeonbuk Natl Univ, Dept Earth & Environm Sci, Jeonju 54896, South Korea 3.Jeonbuk Natl Univ, Earth & Environm Sci Syst Res Ctr, Jeonju 54896, South Korea 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xinping,Oh, Chang Whan,Peng, Peng,et al. Distribution pattern of age and geochemistry of 2.18-2.14 Ga I- and A-type granites and their implication for the tectonics of the Liao-Ji belt in the North China Craton[J]. LITHOS,2020,364:18. |
| APA | Wang, Xinping,Oh, Chang Whan,Peng, Peng,Zhai, Mingguo,Wang, Xiaohan,&Lee, Bo Young.(2020).Distribution pattern of age and geochemistry of 2.18-2.14 Ga I- and A-type granites and their implication for the tectonics of the Liao-Ji belt in the North China Craton.LITHOS,364,18. |
| MLA | Wang, Xinping,et al."Distribution pattern of age and geochemistry of 2.18-2.14 Ga I- and A-type granites and their implication for the tectonics of the Liao-Ji belt in the North China Craton".LITHOS 364(2020):18. |
入库方式： OAI收割
来源：地质与地球物理研究所
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