Data of temporal and seasonal variations of silicate Svratka River and sediment characterization, Czech Republic: geochemical and stable isotopic approach
We hypothesize that the Svratka River is polluted, therefore we applied mineralogical e.g. XRD, XRF and isotopic methods to evaluate its ecological state. The major solute composition of the Svratka River is dominated by HCO3-, Ca2+, Na+, Mg2+, K+ and Cl-. d13CDIC range from -13.3 ‰ to -8.0 ‰ and was used to evaluate biogeochemical processes in river water: (1) exchane with atmospheric CO2 and (2) soil CO2 originating from degradation of organic matter. Higher d15N (around 10 ‰) values are attributed to application of fertilizers in the watershed. X-ray diffraction revealed positive correlation of Al with K and Rb, which show that quartz, feldspars and muskovite are dominant minerals in river system. Weathering of these minerals within the watershed contributes to total alkalinity and solute composition of river water. Calculated enrichment factors for zinc and lead were found at lower reaches of the river. Data were gathered from competent athorities, field work and laboratory work. Data were used to calculate weathering intensity. Data are useful to provide background information on aquatic geochemistry in case of future management of the Svratka River system and other rivers worlwide.
Javna Agencija za Raziskovalno Dejavnost RS