On the features of authigenic minerals in bottom sediments of lakes formed during nival, humid and arid types of sedimentogenesis
DOI:
https://doi.org/10.31951/2658-3518-2024-A-4-700Keywords:
mall lakes, autigenic minerals, bottom sediments, nival, humid and arid sedimentationAbstract
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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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
This work is distributed under the Creative Commons Attribution-NonCommercial 4.0 International License.