Characteristics and geodynamic evolution of Indosinian magmatism in South China: A case study of the Guikeng pluton

► We synthetically study the geochronology, geochemistry, and petrogenesis of Indosinian granites in Guikeng pluton. ► The Guikeng pluton consists of early biotite granites and later K-feldspar phenocryst-rich biotite granites. ► Two period of granites consistent with early and late Indosinian magmatism in South China. ► We summarise the characteristics of Indosinian granites in South China. ► We deduce that between the Ogcheon metamorphic belt in South Korea and the Nanhua Rift Basin in South China can not be linked