Geochemical evidence for reworking of the juvenile crust in the Neoarchean for felsic magmatism in the Yunzhongshan area, the North China Craton

Precambrian Research(2019)

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摘要
•The felsic igneous rocks in the Lüliang complex were formed at 2.56–2.50 Ga.•The TTG gneisses and felsic volcanics were produced by partial melting of the moderately enriched arc crust.•The high-K granites were produced by partial melting of the arc crust similar to modern IAB.•Both 2.8–2.7 Ga and 2.6–2.5 Ga magmatic events were related to oceanic subduction.
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关键词
TTG gneisses,Felsic volcanics,high-K granite,Neoarchean,Arc magmatism,Crustal reworking,North China Craton
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