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doi: 10.24412/2687-1092-2022-9-285-290 1 Lomonosov Moscow State University, Moscow, Russia 2 Institute of Geography, Russian Academy of Sciences, Moscow, Russia 3 DecoGeophysics, Moscow, Russia 4 St. Petersburg State University, St. Petersburg, Russia 5 RN-Exploration, Moscow, Russia
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Abstract. The problem of the Barents Sea Ice Sheet southern boundary location is one of the controversial issues of the paleogeography of the region. The paper summarizes the published data on the distribution of erosion-accumulation geological formations characteristic of glacial and periglacial shelves on the Pechora shelf. Based on the interpretation of standard seismic exploration data 2D and 3D reconstructed a network of paleochannels that can be compared with the Pra Pechora valley. The boundaries of the distribution of perennial breeds have been clarified. The evidence is given that during the last glacial maximum the glaciation boundary was in the area of the «Kolguyev line», and on the coastal shallow water there were periglacial conditions. Keywords: Pechora Sea, relief, Valdai glaciation, permafrost rock mass, river Pra-Pechora
The Arctic Shelf of Eurasia in the Late Quaternary / Aksenov A.A.,
Dunaev N.N., Ioni A.S. etc. M.: Nauka, 1987, 278 p.
Eremenko Е.А., Denisova A.P., Moroz Е.А., Maznev S.V., Arkhipov V.V.
Geomorphological role of degassing on the Barents-Kara shelf //
Relief and Quaternary deposits of the Arctic, Subarctic and North-West
Russia.
Koshel S.M., Koshel A.M., Ushakova L. Mapping of the bottom
topography of the northern seas of Russia using digital models. Inter-Carto/InterGIS-20:
Sustainable development of territories: cartographic and geoinformation
support // Proceedings of the international conference, Belgorod,
Kharkov (Ukraine), Kigali (Rwanda) and Nairobi (Kenya), July 23-August
8, 2014. Constanta Belgorod Publishing House, 2014, pp. 417-423. Krapivner R.B. Rapid sagging of the Barents Shelf over the last 15-16 ka // Geotectonics. 2006. Vol. 40. № 3. P. 197-207. doi: 10.1134/S0016852106030046
Moroz E.A., Kokhan A.V., Zaraiskaya Yu.A., Sokolov S.Yu., Razumovsky
A.A. Relief structure and dynamics of movement of glacial masses
in the marginal zone of the Late Pleistocene glacier in the Barents Sea
region // VIII Shchukin readings: relief and nature management.
Materials of the All-Russian conference with international
participation. Moscow State University named after M.V. Lomonosov,
Faculty of Geography, Department of Geomorphology and Paleogeography,
Moscow, September 28-October 1, 2020 M., 2020, pp. 713–718.
Moroz E.A., Kokhan A.V., Zaraiskaya Yu.A., Sukhikh E.A., Razumovsky
A.A., Ananiev R.A. Bottom relief and late Valdai glaciation of
the southeastern part of the Barents Sea // Proceedings of the IX
International Scientific and Practical Conference "Marine Research and
Education (MARESEDU-2020)" Volume II (III). Tver: PoliPRESS LLC, 2020b,
pp. 114-117.
Nikiforov S.L., Ostrovsky D.B., Pavlidis Yu.D., Seleznev I.A.
The history of the development of the relief of the Arctic shelf and the
creation of a digital model of the seabed // Underwater research and
robotics. 2007.
Rokos S.I., Dlugach A.G., Loktev A.S., Kostin D.A., Kulikov S.N.
Permafrost rocks of the shelf of the Pechora and Kara seas: genesis,
composition, conditions of distribution and occurrence //
Engineering surveys. 2009.
Romankevich E.A., Lisitsin A.P., Vinogradov M.E. Pechora Sea.
System research (hydrophysics, hydrology, optics, biology, chemistry,
geology, ecology, socio-economic problems). M .: Publishing house
"SEA". 2003, 486 p. Bjarnadóttir L.R., Winsborrow M.C.M, Andreassen K. Large subglacial meltwater features in the central Barents Sea // Geology. 2017. Vol. 45. Is. 2. P. 159-162. doi:10.1130/G38195.1 Gattaulin V., Mangerud J., Svendsen J.I. The extent of the Late Weichselian ice sheet in the southeastern Barents Sea // Global and Planetary Change. 2001. Vol. 31. P. 453–474. doi: 10.1016/S0921-8181(01)00135-7 Hughes A.L. C., Gyllencreutz R., Lohne Ø.S., Mangerud J., Svendsen J.I. The last Eurasianice sheets–a chronological database and time-slice reconstruction, DATED-1 // Boreas. 2016. Vol. 45. Is. 1. P. 1–45. doi:10.1111/bor.12142 Jakobsson M., Larry A.M. Polar Region Bathymetry: Critical knowledge for the prediction of global sea level rise // Frontiers in Marine Science. 2022. Vol. 8: 788724. doi: 10.3389/fmars.2021.788724 Patton H., Hubbard A., Andreassen K., Auriac A., Whitehouse P.L., Stroeven A.P., Hall A.M. Deglaciation of the Eurasian ice sheet complex // Quaternary Science Reviews. 2017. Vol. 169. P. 148-172. doi: 10.1016/j.quascirev.2017.05.019 Svendsen J.I., Alexanderson H., Astakhov V.I. et al. Late Quaternary ice sheet history of Northern Eurasia // Quaternary Science Reviews. 2004. Vol. 23. Is. 11–13. P. 1229–1271. doi: 10.1016/j.quascirev.2003.12.008 Terekhina Y.E., Gorbachev S.V., Maev P.A., Ponimaskin A.I. A Possibility of Using Standard 3D Seismic Data for Assessment of Drilling Geohazards in Transit Zone // Near Surface Geoscience 2016 - Second Applied Shallow Marine Geophysics Conference, EAGE Publications, 2016, P. 1-5. doi: 10.3997/2214-4609.201602144 Terekhina Y.E., Tokarev M.Y., Pirogova A.S., Roslyakov A.G., Shalaeva N.V., Semenova A.A. Approach to 3D seismic data interpretation for drilling geohazard assessment // Near Surface Geoscience, EAGE, 2015, P. 1-4. doi: 10.3997/2214-4609.201413747
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Cite this article: Khlebnikova O.A., Repkina T.Y., Terekhina J.E., Solovyeva M.A., Rybalko A.E., Kolubakin A.A. 2022. New data on signs of the maximum extent of the last glaciation in the Pechora Sea // Relief and Quaternary deposits of the Arctic, Subarctic and North-West Russia. Issue 9. P. 285-290. doi: 10.24412/2687-1092-2022-9-285-290
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