New constraints on the genesis of the giant Dayingezhuang gold (silver) deposit in the Jiaodong district, North China Craton

•New geochronological data indicate that the Dayingezhuang deposit formed at ~120 Ma.•In-situ S-Pb and C-O isotopic data confirm a mantle-derived origin for ore-forming fluids and materials.•The gold and late silver mineralization were formed by a same metallogenic event.•The Dayingezhuang deposit and related intermediate-mafic dikes were both products of the late Mesozoic destruction of NCC.