An evolving magma chamber within extending lithosphere: An integrated geochemical, isotopic and zircon U-Pb geochronological study of the Gushan granite, eastern North China Craton

► Multiple magma processes are suggested for the history of the Gushan granite. ► Several magma sources are identified to involve in the formation of the Gushan granite. ► Lithospheric thinning and regional extension are key factors for generation of the granite.