U-Pb age of granitoids from the Ol’khovskii ring pluton of the Voronezh crystalline massif (Northern Part of the conjunction zone of Sarmatia and Volgo-Uralia)

The Paleoproterozoic Olkhovskii ring gabbro noritequartz monzonitegranite pluton is located in the Central European part of Russia at the boundary between the Lipetsk and Voronezh areas. The Olkhovskii pluton together with volcanic rocks of the basaltandesite basaltandesite composition form a magmatic association of the regional Voronezh Lipetsk syncline structure. Consolidation of this magmatic association is related to the continental margin environments of conjunction of the Sarma tia and Volgo Uralian segments of the East European Craton.