Characteristics of environmental conditions during the accumulation of lake bottom sediments in the Mustatunturi ridge area (Kola region)
DOI:
https://doi.org/10.31951/2658-3518-2024-A-4-779Keywords:
Diatoms, lake bottom sediments, granulometric analysis, Holocene, Kola regionAbstract
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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This work is distributed under the Creative Commons Attribution-NonCommercial 4.0 International License.