engleski

Methodological approach to the research of impacts on the tufa environment in the Slunjčica River basin

The conditions of tufa precipitation in the Slunjčica river basin are investigated, with an emphasis on sedimentation characteristics at the mouth of the Slunjčica river and with special review to the influence of ecotoxic metal content in the water-sediment system. In the context of the spatial distribution of tufa, the geological, hydrogeological and hydrological characteristics of the basin are considered. The type of tufa and facies are determined in situ and using micropetrographic analysis of tufa samples. Hydrochemical studies of catchment waters include in situ and laboratory analyzes (stable isotopes, ionic composition, trace elements, suspended solids). The composition and characteristics of laminated and homogeneous tufa deposited on artificial structures are analyzed. Within the spatial-temporal interpretation of hydrochemical data, the concentrations of ecotoxic metals and changes of these concentrations in the water-sediment system are determined. The aim of the study is to determine whether these changes are comparable to changes of tufa growth rate. The sequence of the above procedures generates a logical set of analytical methods that are graphically combined into a research model. The applied model serves to interpret the recent deposition conditions and the annual growth rate of tufa. The ultimate purpose is to contribute to the development of scientific research models in the subject field of science.

tufa ; Slunjčica river basin ; ecotoxic metals ; annual growth rate of tufa

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