The aim of the research is to determine the genetic nature of sandstone in the is the south-western suburbs of the East European platform for establishing their facies, the sources of the demolition, recycling, chemical weathering degree for the reconstruction of the paleogeographic and paleogeodinamic environments.

Chemical composition of sandstone was converted into petrochemical modulus (iron modulus (IM), titanium modulus (TM), femic modulus (FM), relationship alkaline modulus (AM), and chemical index of alteration (CIA), the chemical index of weathering (CIW), plagioclase index of alteration (PIA) and others.

For the reconstruction of depositional conditions of terrigenous sediments applied discrimination diagrams Roser and Korsch. The sandstones were formed in conditions both passive and active of continental margins.

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