Formation of the Jinshandian Fe skarn ore field in the Edong district, Eastern China: Constraints from U–Pb and 40Ar/39Ar geochronology

The Jinshandian ore field represents one of the largest concentrations of Fe skarn deposits in the Edong district of Eastern China. Orebodies of these deposits occur in skarn along the contacts between quartz diorite or quartz monzonite and Triassic sedimentary country rocks. In this paper, we present new U–Pb geochronological data for magmatic zircon and hydrothermal titanite, as well as 40Ar/39Ar ages on hydrothermal phlogopite, to determine...