Age and tectonic position of the Stanovoi metamorphic complex in the eastern part of the Central Asian Foldbelt.

Based on the results of Sm-Nd isotopic geochemical and U-Th-Pb geochronological LA-ICP-MS studies, it has been established that the formation of metamorphic rock protoliths of the Stanovoi Complex in the western Dzhugdzhur-Stanovoi Superterrane of the Central Asian Foldbelt took place over the following time spans: 2750-2860 Ma (Ilikan Group of the Ilikan Zone), 1890-1910 Ma (Bryanta Group of the Bryanta Zone), and ~2.0 Ga (Kupuri and Zeya groups of the Kupuri and Zeya zones, respectively). It has been shown that the western part of the Dzhugdzhur-Stanovoi Superterrane was formed ~1.9 Ga ago, as a result of collision of the Neoarchean Ilikan Terrane, the Paleoproterozoic island arc, and the Paleoproterozoic Kupuri-Zeya Terrane. The data make it possible to consider the Kurul'ta, and Zverevo blocks of the Stanovoi Structural Suture and the Ilikan Terrane of the Dzhugdzhur-Stanovoi Superterrane of the Central Asian Foldbelt as constituents of a common terrane. [ABSTRACT FROM AUTHOR]