Characteristics of environmental conditions during the accumulation of lake bottom sediments in the Mustatunturi ridge area (Kola region)

Authors

  • Tolstobrova A.N. 1
  • Tolstobrov D.S. 1
  • Shikhirina K.A. 2
    • 1 Geological Institute of the Kola Science Centre of the Russian Academy of Sciences; 14, Fersman Str., 184209 Apatity, Russia
    2 Herzen State Pedagogical University, 48 Moika Embankment, St. Petersburg, 191186, Russia

DOI:

https://doi.org/10.31951/2658-3518-2024-A-4-779

Keywords:

Diatoms, lake bottom sediments, granulometric analysis, Holocene, Kola region

Abstract

A comprehensive study (lithological study, diatom analysis, radiocarbon dating, grain-size and loss on ignition (LOI) analyses) of bottom sediments of the lake located at altitude 31.2 m above sea level in the Mustatunturi ridge area (Kola region) was carried out. It has been established that the beginning of sedimentation in the lake basin occurred in the early Holocene under brackishwater conditions. The transition zone from marine to freshwater sediments were formed while the sea coastline has been retreating. Freshwater sediments were formed when the basin of the studied lake was disconnected from the sea.

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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.