Analogs of the Sylvenian reefs in the Southern Urals

Abstract

During the study of the Lower Permian sediments of the Southern Urals, massive reef algal limestones were encountered in the Artinskian Stage roof, which are analogous to the reef algal limestones of the Sylva River basin in the Middle Urals in terms of their position in the section, reef-forming organisms, and fauna complex. They are most well exposed in the Shafeevsky section.