Tectonic significance of the Xilin Gol Complex, Inner Mongolia, China: Petrological, geochemical and U-Pb zircon age constraints

► The Xilin Gol Complex is a Mid-Late Proterozoic terrane on the southern margin of the Siberia Craton. ► It occurred partial melting and migmatization at 452 ± 5 Ma in response to north-dipping oceanic subduction. ► The Xilin Gol Complex recorded the Mid-Late Proterozoic amalgamation of the Rodinia supercontinent. ► A successive accretion of the long-lived, single arc existed at the southern margin of the Siberia Craton.