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doi: 10.24412/2687-1092-2022-9-262-267 1 Geological Institute of the KSC RAS, Apatity, Russia 2 Apatity Branch of MSTU, Apatity, Russia 3 Saint-Petersburg State University, St. Petersburg, Russia
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Abstract. To reconstruct the environmental in the Late and Post-Glacial period was carried out study of the bottom sediments of several lakes in the south-western part of the Murmansk region. The sediments of 6 lake basins located at elevations from 102.0 m to 136.4 m above sea level were studied. A detailed lithological description and photo documentation of complete sections of lakes were carried out, samples for diatom, granulometric analyses and radiocarbon dating were taken. Sediment horizons with and without hydrotroillite, as well as with Fe-Mn concretion, have been found within Lake Girvas. The formation of such horizons is associated with certain physico-chemical conditions that depend on the hydrological regime in the basin and climate change. In the area of Upoloksha, horizons of disturbed sediments have been found in sections of some lakes. The area of their occurrence is limited according to lithological data from several lakes. Keywords: bottom sediments of lakes, lithology, Kola region, Late Glacial, Holocene
Armand A.D., Samsonova L.Ya. Marine deposits and Holocene
tectonics of the Kandalaksha region // Main problems of
geomorphology and stratigraphy of the anthropogen of the Kola Peninsula.
L.: Science. 1969, pp. 96–111. Dauval'ter V.A., Il'yashuk B.P. Conditions of formation of ferromanganese nodules in the bottom sediments of lakes in the Baltic Shield // Geochemistry International. 2007. Vol. 45. № 6. P. 615-619. doi: 10.1134/S0016702907060092
Lavrova M.A. Quaternary geology of the Kola Peninsula.
M.L.: AN SSSR. 1960. 234 p.
Nikolaeva S.B., Lavrova N.B., Tolstobrov D.S., Denisov D.B.
Reconstruction of Holocene paleogeographic settings in the Imandra lake
area (Kola region): results of paleolimnological studies //
Proceedings of the Karelian Scientific Center of the Russian Academy of
Sciences. 2015. No. 3. P. 34–47.
Nikonov A.A. Relief development and anthropogenous
paleogeography in the west of the Kola Peninsula. M. L.:
Nauka. 1964. 181 p.
Tolstobrov D.S., Tolstobrova A.N., Kolka V.V., Korsakova O.P.
Post-glacial uplift of the earth's crust in the northwestern part of the
Kola region // Bulletin of MSTU. 2015. Vol. 18. No. 2. pp. 295–306. Ferronsky V.I., Vlasova L.S., Polyakov V.A., Kuprin P.N. Hydrotroilite as a bioindicator of paleohydrological and paleoclimatic processes in the Caspian Basin // Water Resources. 2014. Vol. 41. № 4. P. 473-487. doi: 10.1134/S009780781404006X Korsakova O., Kolka V., Tolstobrov D., Savelieva L., Kosova A., Petrov A., Semyonova L. Holocene environments on the west‐central Kola Peninsula (north‐west Russia): lithology, chronology and biostratigraphy records from Lake Tikozero and a neighbouring bog // Journal of Quaternary Science. 2022. Vol. 37(5). P. 765–777. doi:10.1002/jqs.3397 Korsakova O., Tolstobrov D., Nikolaeva S., Kolka V., Tolstobrova A. Imandra Lake depression in the Late Glacial and early Holocene (Kola Peninsula, N-W Russia) // Baltica. 2020. Vol. 33. № 2. P. 177–190. doi:10.5200/baltica.2020.2.5 Nikolaeva S., Tolstobrov D. Sedimentological records of сatastrophic mass movements in the lake bottom-sediments of north-western Kola Peninsula and possible scenarios to explain the seismogenic trigger // Limnology and Freshwater Biology. 2022. Vol. 4. P. 1517–1519 doi:10.31951/2658-3518-2022-A-4-1517
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Cite this article:
Tolstobrov D.S., Korsakova O.P., Vashkov A.A., Tolstobrova A.N., Topazov E.V., Koroleva T.A., Butina D.V. 2022. Environmental of lake sediment formation in the south-western part of the Murmansk region in the Holocene // Relief and Quaternary deposits of the Arctic, Subarctic and North-West Russia. Issue 9. P. 262-267. doi: 10.24412/2687-1092-2022-9-262-267
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