The Early Jurassic Fe–Sn metallogenic event and its geodynamic setting in South China: Evidence from Re–Os, U–Pb geochronology and geochemistry of the Dading magnesian skarn Fe–Sn deposit

The South China Block (SCB) is one of the largest W-Sn-polymetallic metallogenic district over the world, with most of the deposits formed during the Mesozoic. The Early Jurassic of SCB was considered as a magmatic and metallogenic quiescence stage, as response to the tectonic transition from the paleo-Tethyan to the paleo-Pacific geodynamic domains. The Dading Fe-Sn deposit is a quite rare Early Jurassic deposit recognized in SCB. SIMS Zircon...