MODEL LÁTKOVÉ BILANCE TĚŽKÝCH KOVŮ A RADIOGENNÍCH ELEMENTŮ V OBLASTI MALÝCH POVODÍ KOLEM VODNÍ NÁDRŽE VÍR (BÍLÝ POTOK, FRYŠÁVKA)
Roč.14,(2007)
The article aims to present the preliminary results of a geochemical survey of rocks in the source areas of Bílý potok and Fryšávka streams. These streams flow through geological units of varied structure and composition (Cretaceous, Svratka Crystalline Complex, Polička Crystalline Complex, Moldanubicum). Over 80 samples which had been collected from the profiles of 13 dug holes in the two source areas were subjected to analyses of heavy metals and radiogenic elements, to silicate analyses and others. Within the scope of the pilot interpretations, the results of the analyses of chosen elements were compared with those from the other localities and also the trends of content-changes with depth were observed. The ultimate goal is to design a model capable of describing the changes in the rock environment occurring during the exogenous processes (including the formation of the soil horizon) and during the gradual material transport towards the watercourses.
small river basins; heavy metals; radioactive elements; geochemical exogenuos processes; rock alteration; erosion and transport; redistribution of minerals and elements; mass balance models
Brantley, S. L. – Chen, Y. (1995): Chemical weathering rates of pyroxenes and amphiboles. – In: Chemical weathering rates of Silicate Minerals, Reviews in Mineralogy 31, 119-172. Washington, Min. Soc. Amer.
Müller, P. (2005): Závěrečná zpráva za projekt VaV/630/4/02 Výzkum sedimentů přehrad, nádrží a jezer - zhodnocení rizik a návrhy opatření. – MS MŽP, ČGS.
White, W. M. (1998): Geochemistry. – Cornell University. Ithaka, New York. USA.