中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Late Neoarchean to early Paleoproterozoic tectonic evolution of the southern North China Craton: Evidence from geochemistry, zircon geochronology and Hf isotopes of felsic gneisses from the Taihua complex

文献类型:期刊论文

作者Jia, Xiao-Liang1,2; Zhai, Ming-Guo3,4; Xiao, Wen-jiao1,2,3; Sun, Yong4; Ratheesh-Kumar, R. T.1,2; Yang, He1,2; Zhou, Ke-Fa1,2; Wu, Jia-Lin5
刊名PRECAMBRIAN RESEARCH
出版日期2019-06-15
卷号326页码:222-239
ISSN号0301-9268
关键词Felsic gneisses Zircon U-Pb-Hf isotopic composition Crustal evolution Taihua complex North China Craton
DOI10.1016/j.precamres.2017.11.013
英文摘要The Archean-Paleoproterozoic Taihua Complex, extending from east to west along the southern margin of the North China Craton (NCC), is an ideal window to understand the tectonic evolution of the early Earth. Here we present new data on petrology, zircon geochronology, whole-rock geochemistry and isotopes of TTGs, granitic gneisses and felsic leucosomes of migmatites from the Taihua complex in the Xiaoqinling area. Zircon LA-ICP-MS analyses of rocks yield the formation ages of 2564-2503 Ma for TTGs, 2481-2476 Ma for felsic leucosomes and 2359-2334 Ma for granitic gneisses, respectively. The zircon Lu-Hf isotopes suggest that crustal growth occurred in the late Neoarchean and crustal reworking occurred in the end of Neoarchean and the early Paleoproterozoic. The TTG gneisses are characterized by high Na2O/K2O, La/Yb, Sr/Y and low Nb/Ta ratios, and they were likely generated by partial melting of subducted juvenile oceanic crust with garnet or amphibole in residuals, a mechanism similar to the slab melting model. Both the felsic leucosomes and granitic gneisses have high SiO2 contents and various Hf isotopic compositions, and they probably were formed in an extensional setting, attributing to partial melting as well as mixing of the preexisting TTG suite. Statistically, we report a major transitional phase in the tectonic milieu of the southern NCC from compression to extension during the late Neoarchean (ca. 2.57-2.42 Ga). The compressional tectonics can be attributed to amalgamation of micro-continental blocks during the late Neoarchean (ca. 2.57-2.5 Ga) as the leading period of crustal growth and associated multistage TTG magmatism. In contrast, the extensional phase occurred during the end of Neoarchean (ca. 2.5-2.42 Ga) that may represent the end of cratonic stabilization period and formation of large amounts of K-rich granitic rocks, widespread high-grade metamorphism and migmatites. Additionally, the formation of a large amount of crust-derived granites and mafic dykes during the early Paleoproterozoic in southern NCC reflect another stage (ca. 2.36-2.24 Ga) of crustal extension, which represents an episode of initial worldwide rifting events probably linking to the great oxygen event (GOE). Therefore, the present study proposes a new profile on multi-stage crustal growth/reworking and craton stabilization during Neoarchean-Paleoproterozoic period along the southern NCC, and provides useful insights on complex and heterogeneous evolutionary processes of early Earth.
WOS关键词A-TYPE GRANITES ; U-PB AGES ; TRONDHJEMITE-GRANODIORITE TTG ; EARLY CONTINENTAL-CRUST ; LACHLAN FOLD BELT ; LU-HF ; SOUTHEASTERN MARGIN ; METAMORPHIC ROCKS ; XIAOQINLING AREA ; EXPERIMENTAL CONSTRAINTS
资助项目National Basic Research Program of China (China 973 Program)[2012CB416606] ; Chinese Academy of Sciences (CAS) "Light of West China" Program[Y637101001]
WOS研究方向Geology
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000469157300013
资助机构National Basic Research Program of China (China 973 Program) ; National Basic Research Program of China (China 973 Program) ; National Basic Research Program of China (China 973 Program) ; National Basic Research Program of China (China 973 Program) ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; National Basic Research Program of China (China 973 Program) ; National Basic Research Program of China (China 973 Program) ; National Basic Research Program of China (China 973 Program) ; National Basic Research Program of China (China 973 Program) ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; National Basic Research Program of China (China 973 Program) ; National Basic Research Program of China (China 973 Program) ; National Basic Research Program of China (China 973 Program) ; National Basic Research Program of China (China 973 Program) ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; National Basic Research Program of China (China 973 Program) ; National Basic Research Program of China (China 973 Program) ; National Basic Research Program of China (China 973 Program) ; National Basic Research Program of China (China 973 Program) ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program
源URL[http://ir.iggcas.ac.cn/handle/132A11/92250]  
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Zhai, Ming-Guo
作者单位1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resources, Urumqi 830011, Xinjiang, Peoples R China
2.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Xinjiang, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
4.Northwest Univ, Dept Geol, State Key Lab Continental Dynam, Xian 710069, Shaanxi, Peoples R China
5.Changan Univ, Sch Earth Sci & Resources, Xian 710054, Shaanxi, Peoples R China
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Jia, Xiao-Liang,Zhai, Ming-Guo,Xiao, Wen-jiao,et al. Late Neoarchean to early Paleoproterozoic tectonic evolution of the southern North China Craton: Evidence from geochemistry, zircon geochronology and Hf isotopes of felsic gneisses from the Taihua complex[J]. PRECAMBRIAN RESEARCH,2019,326:222-239.
APA Jia, Xiao-Liang.,Zhai, Ming-Guo.,Xiao, Wen-jiao.,Sun, Yong.,Ratheesh-Kumar, R. T..,...&Wu, Jia-Lin.(2019).Late Neoarchean to early Paleoproterozoic tectonic evolution of the southern North China Craton: Evidence from geochemistry, zircon geochronology and Hf isotopes of felsic gneisses from the Taihua complex.PRECAMBRIAN RESEARCH,326,222-239.
MLA Jia, Xiao-Liang,et al."Late Neoarchean to early Paleoproterozoic tectonic evolution of the southern North China Craton: Evidence from geochemistry, zircon geochronology and Hf isotopes of felsic gneisses from the Taihua complex".PRECAMBRIAN RESEARCH 326(2019):222-239.

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来源:地质与地球物理研究所

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