The First Discovery of the Paleoproterozoic Highly Fractionated Granites in the South of the Vorontsovka Terrane of the Volga–Don Orogen

Peralkaline and metaluminous ferroan granitoids are identified for the first time in the southern part of the Voronotsovka Terrane. According to the distribution of main and trace elements, they are highly fractionated, whereas petrographic characteristics and geochemical features indicate fractionation of S-type melts.