Early to late Yanshanian I-type granites in Fujian Province, SE China: Implications for the tectonic setting and Mo mineralization

•The Dayang granite with tetrad effect underwent melt–fluid interactions.•The fractionation process is the main mechanism during the Juzhou magma evolution.•They were formed by the mixing of Paleoproterozoic basement and juvenile materials.•The Mo mineralization is genetically related to the Dayang granite.•They corresponded to different stages of subduction of the Paleo-Pacific Plate.