Correlation of small isolated reservoirs in the Zaonezhsky Peninsula area with the Onega Ice Lake level changes

Authors

  • Orlov A.V. 1, 2
  • Potakhin M.S. 1, 2
  • Subetto D.A. 1
    • 1 The Herzen State Pedagogical University of Russia, Moika River Embankment, 48, St. Petersburg, 191186, Russia
    2 Northern Water Problems Institute, Karelian Research Center of the Russian Academy of Sciences, Alexander Nevsky pr., 50, Petrozavodsk, 185030, Russia

DOI:

https://doi.org/10.31951/2658-3518-2024-A-4-761

Keywords:

lacustrine sedimentation, late Pleistocene, bottom sediments, varved clays, Onega Ice Lake

Abstract

The article discusses data on the lithological composition of bottom sediments from two small lakes – Lake Lavkozero and Lake Gangozero, located on the Zaonezhsky Peninsula, within the area of the Onega Ice Lake. In the recovered sediment sequences from studied lakes, two sediment units from top to down have been recognized: Holocene gyttja from small isolated lakes and Late Pleistocene sediments from the Onega Ice Lake, which are represented by varved clays and silts. Based on lithological data, a “pink horizon” of varved clays was identified. It is similar to one which found in the sediment section of the Unitskaya Bay in Lake Onega. The absolute hypsometric position of this “pink horizon” was determined based on the elevation levels of the lakes under study.

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Published

2024-08-26

Issue

2024: №4 (SI:Paleo2024)

Section

Articles

License

Copyright (c) 2024 Limnology and Freshwater Biology

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Creative Commons License
This work is distributed under the Creative Commons Attribution-NonCommercial 4.0 International License.