The Ulandryk and related iron oxide-Cu-REE(-Au-U) prospects in the Russian Altai: A large emerging IOCG-type system in a Phanerozoic continental setting

•Strong Fe oxide (hematite), Cu, and REE mineralization (together with minor Au and locally U) suggests IOCG-type signatures.•Mineralization bears many signatures of the “classic” IOCG (-REE, U) deposits typical of Precambrian terranes but occurs in a Phanerozoic (Paleozoic) setting.•Mineralization is associated with transitional shoshonitic to A-type subvolcanic potassic granite intrusions emplaced in a post-collisional setting.•Mineralization occurs mainly in phyllic to carbonate-phyllic alteration assemblages.•A shallow level of mineralization possibly corresponds to an upper (to the uppermost) part of a vertically extended magmatic-hydrothermal system.