The refined Quaternary stratigraphic scale of the Fore-Urals and main events in Southern Urals Region

The refined Quaternary stratigraphic scale of the Cisuralian and Bashkortostan regions, approved by the Commission on the Quaternary System of the Interdepartmental Stratigraphic Committee in 2007, includes the Eopleistocene (with three superhorizons and seven horizons), Neopleistocene (with three superhorizons and 13 horizons), and Holocene (one horizon and three subhorizons). The first defined Holocene Agidel Horizon with three subhorizons, the Middle Neopleistocene Klimovka, and the Upper Neopleistocene Kushnarenkovo Horizon are correlated with the Shuvalov, Gorka, and Mikulino horizons, respectively. New names and reference sections are proposed for all the Eopleistocene units. Local formations are proposed for the horizons, whose stratotypes are located in the northern Fore-Urals. The Quaternary stratigraphic scale is correlated with similar scales of the Urals, the East European Platform, and the Lower Volga region. The scale takes into account all the available data derived from the analysis of original (sediments, faunal and floral remains), published, and archival materials, which make it possible to trace in detail the main Quaternary events that occurred in the Fore-Urals.