Late Pleistocene and Holocene sediments of Lake Chukhlomskoye

Authors

  • Filippova K.G. 1
  • Konstantinov E.A. 1
  • Zakharov A.L. 1
  • Kuzmenkova N.V. 1, 2
    • 1 Institute of Geography RAS, 29/4 Staromonetny per., Moscow, 119017, Russia
    2 Lomonosov Moscow State University, Chemistry Department, Radiochemistry Division, 1/10 Kolmogorov str., Moscow, 119234, Russia

DOI:

https://doi.org/10.31951/2658-3518-2024-A-4-334

Keywords:

lake deposits, paleolimnology, radiocarbon dating, accumulation rate, paleogeographic reconstuctions

Abstract

The paper discusses the structure of the bottom sediments of Lake Chukhlomskoye (Kostroma region, Russia). The results of complex lithological analysis and 14C AMS dating (TOC) of the sediments revealed in two boreholes located in different geomorphological positions of the bottom relief allowed to reconstruct stages and conditions of sedimentation in the lake. Mass accumulation rate (MAR) was calculated. High values of MAR correspond to 25.4–17.5 cal ka BP (up to 0.192 g/cm2 per year), a sharp decrease of MAR corresponds to 17.9–16.7 cal ka BP, and another stage of sediment influx occurred in Younger Dryas. Holocene MAR is low (0.001–0.053 g/cm2 per year).

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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.