Facies separation of the Holocene alluvium in the Middle Vychegda

The Holocene alluvium of the Middle Vychegda is investigated by a number of lithologic methods, including textural, granulometric, mineralogical and chemical analyses. The facies types of alluvial deposits, distinctly different in basic characteristics: structures of deposits, granulometric composition and content of heavy and clay minerals are ascertained. The differentiation of a clastic material in alluvial deposits, both in size, and mineral composition is revealed.