Baddeleyite U-Pb age and Hf isotopes, and constraints on genesis of the Panzhihua carbonatite in SW China

•Panzhihua is one of the largest V-Ti-magnetite deposits in the world.•One of the largest carbonatitic belts have been identified in Panzhihua.•U-Pb dating of baddeleyite yields a weighted mean age of 262.1 ± 1.2 Ma.•εHf(t) of baddeleyite are dominated by negative values and decrease progressively from northeast to southwest.•Primary magma of Panzhihua carbonatite might have been derived from the partial melt of metasomatized lithospheric mantle.