On the features of authigenic minerals in bottom sediments of lakes formed during nival, humid and arid types of sedimentogenesis

Authors

  • Strakhovenko V.D. 1
  • Ovdina E.A. 1
  • Malov G.I. 1
  • Malov V.I. 1
  • Subetto D.A. 2
  • Belkina N.A. 2, 3
    • 1 V.S. Sobolev Institute of Geology and Mineralogy of the Siberian Branch of the Russian Academy of Sciences (RAS), 3 Akad. Koptyug Pr., Novosibirsk, 630090 Russia
    2 Herzen State Pedagogical University of Russia, 48 Moika Emb., Saint-Petersburg, 191186, Russia
    3 Northern Water Problems Institute of the Karelian Research Centre of the Russian Academy of Sciences, 50 Alexander Nevsky Pr., Petrozavodsk, 185030, Russia

DOI:

https://doi.org/10.31951/2658-3518-2024-A-4-700

Keywords:

mall lakes, autigenic minerals, bottom sediments, nival, humid and arid sedimentation

Abstract

The comparison of autigenic minerals from the bottom sediments of lakes located under conditions of nival, humid and arid sedimentation is carried out. The long-term presence of ice cover on the lake, which prevents the mixing of water masses, the introduction of terrigenous material, oxygen-free conditions in the residual part of the waters under the ice and their local supersaturation with gases, makes it possible to form autigenic minerals in fresh waters of lakes located under conditions of nival, humid and arid sedimentation. The shape of the crystalline aggregates of the newly formed phases is determined by the conditions of their crystallization, mainly by the ionic composition of the residual water and microbiological factors.

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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.