QUANTITATIVE REGULARITIES OF THE ARENACEO US ROCK COMPOSITIONAL EVOLUTION OF THE RUSSIAN PLATE

The regularities of distribution and average chemical composition vari ations of the Russian platform arenaceous rocks during last 1.65 b.y. of geological history of sedimentary shell were established. The new d ata were carried out by joint studies at Vernadsky Institute (Russia, Moscow) and Geoforschung Zentrum (Germany, Potsdam) in the field of mi neralogy and chemistry of mentioned rocks. The variations of average c hemical composition of those are also considered in terms of facial an d climate conditions of sedimentation an distance from the source of m aterial at active areas of erosion. It is shown that the Russian plate and the East European platform as a whole could be considered as not only Neogeic ''tectonotype'' but ''lithotype'' and ''chemotype'' as we ll in relation to the majority of ancient platforms especially Lawrasi an platforms.