The relative sea level changes and aeolianprocesses on the eastern coast of the White Sea (Gorlo Strait) during the Late Glacial and Holocene (based on studies of Lake SrednyayaTret')

Authors

  • Repkina, T.Yu. 1, 2
  • Kublitsky, Y.A. 2
  • Leontev, P.A. 2
  • Gurinov, A.L. 2, 3
  • Vakhrameeva, E.A. 4
  • Losyuk, G.N. 3
  • Shilova, O.S. 5
  • Lugovoi, N.N. 1, 5
    • 1 Institute of Geography, Russian Academy of Sciences, 29 Staromonetnyy lane, Moscow, 119017, Russia
    2 Herzen State Pedagogical University of Russia, 48 Naberezhnaya reki Moyki, St. Petersburg, 191186, Russia
    3 Department of Landscape Design and Sustainable Ecosystems, Agrarian-Technological Institute, Russian Friendship University of Russia, 6 Miklukho-Maklaya Str., Moscow, 117198, Russia
    4 Laverov Federal Center for Integrated Arctic Research UB RAS, 23 Naberezhnaya Severnoi Dviny, Arkhangelsk, 163000, Russia
    5 Faculty of Geography of Lomonosov Moscow State University, 1 Leninskie Gory, Moscow, 119991, Russia

DOI:

https://doi.org/10.31951/2658-3518-2022-A-4-1544

Keywords:

RSL, aeolian processes, palaeolimnology, grain-size analysis, diatom analysis, loss on ignition, Corg/Norg, Late Glacial, Holocene, White Sea, Gorlo Strait

Abstract

Geomorphological, ground penetration radar profiling and paleolimnological investigations were carried out in the Lake SrednyayaTret' (66.014009°N, 41.086294°E; 7.3 m ASL). Bottom sediments from the three boreholes were studied. Lithologostratigraphic description, grain-size and diatom analyses were carried out, loss on ignition, Corg/Nogr was determined. Radiocarbon ages were obtained from the lower horizons of post-glacial sediments. Signs of Late Glacial transgression (earlier ~12.1 kyr. cal. BP) and Early Holocene regression (started between ~12.1 and ~10.3 kyr. cal. BP) were determined. The next filling of the lake basin can be compared with the Middle Holocene transgression. At the same time sea waters did not penetrate into the lake basin. The beginning of this stage was apparently accompanied by intensification of coastal aeolian processes.

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Published

2022-09-02

Issue

2022: №4 (SI:Paleo2022)

Section

Articles

License

Creative Commons License
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