A refined study of Paleoproterozoic high-pressure granulite-facies metamorphism in the Kongling complex of northern Yangtze block

Lin-Sen Li,Xiao-Lei Wang,Chris Yakymchuk,Simon Schorn,Jin-Hai Yu,Di Wang,Jun-Yong Li,De-Hong Du,Yu Huang

Precambrian Research（2022）

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摘要

•Formations of inverse corona textures can reveal the P-T information in metamorphism.•Zircon U-Pb dating yields peak conditions at ∼ 2.05 Ga and decompressed after ∼ 50 Myr.•Phase modelings present metamorphism from 10.0 ± 0.3 kbar/860 ± 30 °C to 6.0 ± 0.5 kbar/840 ± 40 °C later.•High T/P of 860 ℃/GPa reveals warm environments in Paleoproterozoic tectonic regime.

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关键词

Kongling Complex,Paleoproterozoic metamorphism,Inverse corona texture,Chemical potential modeling,Thermodynamic modeling,P-T-t path

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