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High-temperature S-type granitoids (charnockites) in the Jining complex, North China Craton: Restite entrainment and hybridization with mafic magma

文献类型：期刊论文

作者Wang, Luo-Juan1,2; Guo, Jing-Hui3,4; Yin, Changqing1,2; Peng, Peng3,4; Zhang, Jian1,2; Spencer, Christopher J.5; Qian, Jia-Hui1,2
刊名LITHOS
出版日期2018-11-01
卷号320页码:435-453
ISSN号0024-4937
关键词Strongly peraluminous Garnet granitoid Crustal anatexis Magma hybridization North China Craton
DOI10.1016/j.lithos.2018.09.035
英文摘要The Liangcheng garnet granitoids are parautochthonous S-type granites that occur within granulite-facies metasediments in the ultrahigh-temperature (UHT) Jining Complex, eastern part of the Khondalite Belt, North China Craton. These garnet granitoids contain mafic microgranular enclaves and are intimately associated with numerous small intrusions of the Xuwujia gabbronorites, showing magma mingling and mixing textures. Typical mineralogy in the garnet granitoids is plagioclase + K-feldspar + quartz + garnet + biotite +/- orthopyroxene. U-Pb ion microprobe dating of zircon suggests that garnet granitoids and associated gabbronorites were coeval with UHT metamorphism at similar to 1.93-1.92 Ga, and also recorded similar to 1.92 Ga metamorphism during slow cooling. Garnet granitoids are characterized by the presence of orthopyroxene, high modal proportion of garnet (up to 25%) and strongly peraluminous (ASI = 1.11-1.55) along with lower SiO2 (57.8-70.1 wt%) and higher FeOt + MgO (5.6-14.4 wt%) contents than typical S-type granites. Mineral chemistry (high Ti biotite and high Al orthopyroxene), high Al-in-orthopyroxene temperature (910-989 degrees C) and Zr saturation temperature (825-901 degrees C), and low whole-rock Al2O3/TiO2 ratios (11-28), indicate that garnet granitoids were derived from biotite dehydration melting of metasedimentary rocks under UHT granulite-facies conditions. Textural and compositional evidence suggests that a significant proportion of garnets in the Liangcheng garnet granitoids are potentially a peritectic phase entrained from the source. Garnet aggregates may also represent entrained garnet-rich restites. The large HREE variations of garnet granitoids also support the entrainment of garnet-rich restites. Garnet granitoids display nearly linear trends with the mafic enclaves and gabbronorite for most major elements that demonstrates the involvement of mafic magma in the granitoid petrogenesis. The epsilon Hf-(t) values (-1.0 - +5.6) and delta O-18 values (9.2-11.6%) of zircons in garnet granitoids partly overlap with those in gabbronorites (epsilon Hf-(t) = -2.9 - +3.5, delta O-18 = 7.7-10.9%), suggesting the strong interaction and mixing process between them. Major element modelling suggests that the addition of 20-40% restites (garnetites) and gabbronorites to the anatectic melts was responsible for the large chemical variations. Therefore, the Liangcheng garnet granitoids represent high-temperature (> 900 degrees C), H2O-undersaturated, strongly peraluminous granitoids, and are produced by large-scale melting of metasedimentary rocks and subsequent mixing between restite-rich anatectic melt and mafic magma. The voluminous high-temperature granitoids, coupled with UHT granulites in the Jining Complex, manifest the thermal response of a granulitic lower crust to the mafic underplating. (C) 2018 Elsevier B.V. All rights reserved.
WOS关键词PERITECTIC GARNET ENTRAINMENT ; PRESSURE PELITIC GRANULITES ; SIERRA-NEVADA BATHOLITH ; U-PB GEOCHRONOLOGY ; KHONDALITE BELT ; WESTERN BLOCK ; METASEDIMENTARY ROCKS ; ISOTOPIC COMPOSITIONS ; TECTONIC EVOLUTION ; METAMORPHIC EVENTS
资助项目National Nature Science Foundation of China[41602197] ; National Nature Science Foundation of China[41672190] ; National Nature Science Foundation of China[41672184] ; Talent Award under the 1000 Young Talents Program of the Chinese Government ; Talent Award under the Zhuhai Scholar Program of the Chinese Government
WOS研究方向Geochemistry & Geophysics ; Mineralogy
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000453111800029
资助机构National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; Talent Award under the 1000 Young Talents Program of the Chinese Government ; Talent Award under the 1000 Young Talents Program of the Chinese Government ; Talent Award under the 1000 Young Talents Program of the Chinese Government ; Talent Award under the 1000 Young Talents Program of the Chinese Government ; Talent Award under the Zhuhai Scholar Program of the Chinese Government ; Talent Award under the Zhuhai Scholar Program of the Chinese Government ; Talent Award under the Zhuhai Scholar Program of the Chinese Government ; Talent Award under the Zhuhai Scholar Program of the Chinese Government ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; Talent Award under the 1000 Young Talents Program of the Chinese Government ; Talent Award under the 1000 Young Talents Program of the Chinese Government ; Talent Award under the 1000 Young Talents Program of the Chinese Government ; Talent Award under the 1000 Young Talents Program of the Chinese Government ; Talent Award under the Zhuhai Scholar Program of the Chinese Government ; Talent Award under the Zhuhai Scholar Program of the Chinese Government ; Talent Award under the Zhuhai Scholar Program of the Chinese Government ; Talent Award under the Zhuhai Scholar Program of the Chinese Government ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; Talent Award under the 1000 Young Talents Program of the Chinese Government ; Talent Award under the 1000 Young Talents Program of the Chinese Government ; Talent Award under the 1000 Young Talents Program of the Chinese Government ; Talent Award under the 1000 Young Talents Program of the Chinese Government ; Talent Award under the Zhuhai Scholar Program of the Chinese Government ; Talent Award under the Zhuhai Scholar Program of the Chinese Government ; Talent Award under the Zhuhai Scholar Program of the Chinese Government ; Talent Award under the Zhuhai Scholar Program of the Chinese Government ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; Talent Award under the 1000 Young Talents Program of the Chinese Government ; Talent Award under the 1000 Young Talents Program of the Chinese Government ; Talent Award under the 1000 Young Talents Program of the Chinese Government ; Talent Award under the 1000 Young Talents Program of the Chinese Government ; Talent Award under the Zhuhai Scholar Program of the Chinese Government ; Talent Award under the Zhuhai Scholar Program of the Chinese Government ; Talent Award under the Zhuhai Scholar Program of the Chinese Government ; Talent Award under the Zhuhai Scholar Program of the Chinese Government
源URL[http://ir.iggcas.ac.cn/handle/132A11/90271]  
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Guo, Jing-Hui; Yin, Changqing
作者单位1.Sun Yat Sen Univ, Sch Earth Sci & Engn, Guangzhou 510275, Guangdong, Peoples R China
2.Sun Yat Sen Univ, Guangdong Prov Key Lab Geodynam & Geohazards, Guangzhou 510275, Guangdong, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Curtin Univ, Sch Earth & Planetary Sci, Earth Dynam Res Grp, Perth, WA 6102, Australia
推荐引用方式
GB/T 7714		 Wang, Luo-Juan,Guo, Jing-Hui,Yin, Changqing,et al. High-temperature S-type granitoids (charnockites) in the Jining complex, North China Craton: Restite entrainment and hybridization with mafic magma[J]. LITHOS,2018,320:435-453.
APA Wang, Luo-Juan.,Guo, Jing-Hui.,Yin, Changqing.,Peng, Peng.,Zhang, Jian.,...&Qian, Jia-Hui.(2018).High-temperature S-type granitoids (charnockites) in the Jining complex, North China Craton: Restite entrainment and hybridization with mafic magma.LITHOS,320,435-453.
MLA Wang, Luo-Juan,et al."High-temperature S-type granitoids (charnockites) in the Jining complex, North China Craton: Restite entrainment and hybridization with mafic magma".LITHOS 320(2018):435-453.

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