Melting of the Meso-Neoproterozoic juvenile crust for the origin of the Late Triassic Mo mineralization in South Qinling, central China: Evidence from geochronology and geochemistry of the Yangmugou deposit

•Yangmugou Mo deposit is located in the South Qinling orogenic belt and formed in the Late Triassic.•Ore-bearing monzogranite originated from the melting of Meso-Neoproterozoic juvenile crust.•Barren dacite formed by interaction between crustal-derived adakitic melts and mantle wedge.•Yangmugou Mo deposit formed under local extensional environment.