Lithogenetic types of carbonate deposits Upper Famennian-Tournaisian strata of the Belskoaktobe depression and the adjacent part of the West Ural Folding Zone

Abstract

The results of structural-genetic typification of carbonate deposits of the Upper Famennian-Tournaisian sequence within the study area are presented. Five lithogenetic types reflecting different conditions of sedimentation and having different primary sedimentary structures are distinguished. The correlation between the formation of granular varieties and the conditions of elevated hydrodynamics of waters corresponding to relatively elevated sublittoral areas of the basin has been established. A sedimentation model of the formation of the Upper Famennian-Tournaisian for the central part of the Belsko-Aktobe depression and the adjacent part of the West Ural folding zone has been proposed.