The Spatial Distribution of Clayey Soils of Different Ages and Origins on the Russian Territory

Abstract— In engineering geology, clay soils are investigated from different positions, including from the point of view of their spatial distribution. The latter is especially important for the vast territory of our country. Overview maps of the distribution of the Pre-Quaternary and Quaternary clayey soils on the Russian territory have been compiled. The patterns of their distribution by area and section within platform and mountain-folded regions have been described.