Typification of volcanogenic deposits of the Carboniferous complex of the Mindyak graben-syncline of the Voznesensko-Prisakmarskaya structural-formational zone of the Southern Urals
The results of the studies show that the volcanogenic deposits of the Carboniferous complex of the Mindyak graben-syncline in the Southern Urals were formed as a result of successively manifested synsedimentary volcanism: early moderately alkaline basaltoid fissure type and subsequent moderately alkaline basalt-basalt-andesite-dacitic type, more extensive in the area. According to the conditions of localization, composition and petrochemical characteristics, the considered volcanic rocks are comparable with typical for the Ural-Tien Shan region volcanogenic deposits of the Varissky rift structures of deep fault zones (Magnitogorsk-Bogdanovskaya in the Southern Urals and Boztau-Kokpatasskaya in the Southwestern Tien Shan). Together they can serve as indicators for the riftogenic settings of the Late Paleozoic early orogenic (early collisional) tectonic-magmatic activation of this region. The obtained data can be used to refine the geological structure and metallogeny of the Southern Urals.