THE EARLY CRETACEOUS COLLISIONAL GRANITE-LEUCOGRANITE ASSOCIATION OF THE STANOVOI TERRANE: NEW GEOCHRONOLOGICAL, GEOCHEMICAL, AND ISOTOPE-GEOCHEMICAL DATA

Abstract

The granite–leucogranite plutons traditionally recognized as the Irakan Complex are widespread in the Stanovoi Terrane [1]. This plutonic association comprises (I) biotite–hornblende quartz monzodiorite, (II) biotite–hornblende granite, and (III) biotite-bearing leucogranite and subalkali leucogranite intrusive phases. According to the K–Ar datings, phase II is composed of Early Cretaceous granites, while phase III includes Late Cretaceous leucogranites. Gold placers and gold–tungsten and molybdenum ore occurrences are spatially associated with granite–leucogranite plutons.