Petrogenesis of ca. 830 Ma Lushan bimodal volcanic rocks at the southeastern margin of the Yangtze Block, South China: Implications for asthenospheric upwelling and reworking of juvenile crust

Neoproterozoic bimodal volcanic rocks are widespread in the South China Block and provide information on crust–mantle interaction, the thermal and chemical status of the deep mantle, and the growth and reworking of continental crust. In this paper, we present sensitive high-resolution ion microprobe (SHRIMP) zircon U–Pb ages and whole-rock geochemistry for the Lushan bimodal volcanic rocks in northern Jiangxi Province, South China Block. Our...