Abstract
The taxonomic structure of diatom assemblages from the modern lacustrine sediments of the Kola Peninsula and Ni concentration in them are analyzed. It was found that the degree of negative transformation of structure of diatom assemblages from small (< 1 km2) and medium-sized (1–4 km2) lakes shows significant correlation with the Ni concentration in surface waters. A method of graphical analysis was applied to study the variations of taxonomic proportions in the diatom assemblages, which are proposed to use during integrated paleoecological investigations of bottom cores from weakly studied lakes of Caucasus. The prospects of application of the integrated analysis of bottom cores taken from lakes of different genesis are estimated. Obtained results have demonstrated that small closed lakes are the most promising objects for the assessment of heavy metal pollution caused by the transboundary transfer.
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Original Russian Text © L.V. Razumovskii, V.L. Razumovskii, 2015, published in Geokhimiya, 2015, No. 3, pp. 289–296.
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Razumovskii, L.V., Razumovskii, V.L. Assessing the heavy metal pollution by the study of diatom assemblages from lacustrine sediments, European Russia. Geochem. Int. 53, 277–284 (2015). https://doi.org/10.1134/S0016702915030118
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DOI: https://doi.org/10.1134/S0016702915030118