Silurian S-type granite-related W-(Mo) mineralization in the Nanling Range, South China: A case study of the Pingtan W-(Mo) deposit

•Orebodies are controlled by F1 in the Caledonian Miao’ershan granite batholith.•Monzogranite at Pingtan is a highly fractionated peraluminous granite.•Molybdenite Re–Os age coincident with zircon U–Pb age.•Ore-forming materials were derived from a predominantly crustal source.