Abstract
Based on studies of the geological and geomorphological structure of the mouth areas of the Ob, Pyasina, Khatanga, and Lena rivers, a model for delta development as a result of fluctuations in the level of the Arctic Ocean as a receiving water body is proposed. It is proven that the current appearance of the deltas has been formed as a result of long-term changes in the erosion basis; based on the study of organomineral sediments (specific sediments accumulated during marine transgressions), a method for identifying episodes of high water level of paleowater bodies is proposed.
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ACKNOWLEDGMENTS
The authors are very grateful to assistants in the expedition of the Arctic and Antarctic Research Institute in 1985 F.A. Romanenko and S.R. Verkulich, who were actively involved in compiling the geomorphological map of the Pyasina River delta.
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Translated by D. Zabolotny
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Bolshiyanov, D.Y., Makarov, A.S. Sea Level Fluctuations as a Key Factor in Delta Formation. Water Resour 49, 781–795 (2022). https://doi.org/10.1134/S0097807822050037
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DOI: https://doi.org/10.1134/S0097807822050037