engleski

Studies on paleogeographic changes in the northwestern part of the Carpatian basin, in the vicinity of the section at Dolni Vestonice

The objectives of our studies were to contribute to a more exact knowledge of the paleographic changes along the western margin of the Carpathian Basin, in the Moravian Plateau. The method of granulometric analyses worked out and applied by our team was used in the investigations into Quaentary sediments (mainly loess and loess-like deposits). The method was the joint study of the six parameters as environmental indicators. Quanternary deposits were characterised and conclusions drawn as to the change in the dynamics of rates of sedimentation on correlation between the local layers with similar characteristics. For these analyses the traditional granulometric parameters (S- sorting, K- kurtosis, S- steepenes, M- median value) were applied and visulised along with two novel environmental indices (FG- fineness grade and K- degree of wearthing) and with CaCo3 content percentage of clay, silt, loess and sand fractions. The interpretation of the results provides a more detailed information to be obtained on the geomorphic evolution of the studied areas much more rapidly than previously. This information includes paleographic conditions during the deposition of the intial material of loess, change sin the geographical environment such as climatic osscillations during the ice age, occurence of warming and coling maxima. Using this method a comparative analyisis of profiles from different loess regions have become feasible.

loss; paleogeographic change; Carpathian basin

nije evidentirano