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Evaluation of the Graphical Analysis Method Informative Value on the Example of the Lake Bolshoe Dzitaku (Western Caucasus)

https://doi.org/10.31857/S0869607121060057

Abstract

The work is devoted to the Caucasus lakes study which is the most promising for the application of the taxonomic proportions graphical analysis method in diatom complexes. Previously, seven lakes were studied, in which this method was confirmed as informative. Studies of the bottom sediments of the lake Bolshoe Dzitaku were carried out using a similar algorithm. A layer-by-layer analysis of the diatom complexes taxonomic structure is carried out. A brief description of the method and the results of its application are given. It was found that the diatom complexes formed in the central part of the lake were not subjected to significant processes of redeposition. The obtained results allow us to include the lake Bolshoe Dzitaku in the list of lakes of the Caucasus that are promising for further ecological and paleoclimatic reconstructions of the Late Holocene. Further studies on the lake’s water area involving a wide range of biological and physico-chemical methods, including age dating of lake sediments by isotopic methods, are recommended.

About the Author

V. L. Razumovsky
Water Problems Institute of the Russian Academy of Sciences
Russian Federation


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Review

For citations:


Razumovsky V.L. Evaluation of the Graphical Analysis Method Informative Value on the Example of the Lake Bolshoe Dzitaku (Western Caucasus). Proceedings of the Russian Geographical Society. 2021;153(6):90-98. (In Russ.) https://doi.org/10.31857/S0869607121060057

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ISSN 0869-6071 (Print)