The Extent of Glaciation in the Pechora Sea, Eurasian Arctic, Based on Submarine Glacial Landforms
The Pechora Sea is optimally located for studying the coalescence of a glacial and periglacial continental shelf zone in the high Arctic. Here, we present data acquired during cruises of the RV <i>Akademik Nikolaj Strakhov</i> in 2018–2021, revealing the distribution of submarine glacial...
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| Format: | Article |
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MDPI AG
2023-02-01
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| Series: | Geosciences |
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| Online Access: | https://www.mdpi.com/2076-3263/13/2/53 |
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| author | Sergey Nikiforov Roman Ananiev Martin Jakobsson Evgeny Moroz Sergey Sokolov Nikolay Sorokhtin Nikolay Dmitrevsky Elena Sukhikh Igor Chickiryov Yulia Zarayskaya Anatoly Razumovskiy Igor Semiletov |
| author_facet | Sergey Nikiforov Roman Ananiev Martin Jakobsson Evgeny Moroz Sergey Sokolov Nikolay Sorokhtin Nikolay Dmitrevsky Elena Sukhikh Igor Chickiryov Yulia Zarayskaya Anatoly Razumovskiy Igor Semiletov |
| author_sort | Sergey Nikiforov |
| collection | DOAJ |
| description | The Pechora Sea is optimally located for studying the coalescence of a glacial and periglacial continental shelf zone in the high Arctic. Here, we present data acquired during cruises of the RV <i>Akademik Nikolaj Strakhov</i> in 2018–2021, revealing the distribution of submarine glacial landforms in the central part of the Pechora shelf area. Based on moraines and the distribution of glacial lineations, the extent of the ice sheet during the Last Glacial Maximum (LGM) is proposed. The crests of the moraine ridges and the slopes of their sides express a variation in morphology, and the ridges combine into irregular complexes. The moraines are primarily composed of coarse cobble-sized material with an addition of coarse sand and other sedimentary fractions. The mapped glacial landforms clearly indicate that an ice sheet extended over the area, while the Pechora basin, at the same time, was comprised of lowland characterized by a cryogenic subaerial landscape. Based on the result from this study, the extent and ice-flow pattern of the Barents-Kara Ice Sheet during the LGM were determined. |
| first_indexed | 2024-03-11T08:47:12Z |
| format | Article |
| id | doaj.art-b6032f8260b84e999dad3fe3e092c021 |
| institution | Directory Open Access Journal |
| issn | 2076-3263 |
| language | English |
| last_indexed | 2024-03-11T08:47:12Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Geosciences |
| spelling | doaj.art-b6032f8260b84e999dad3fe3e092c0212023-11-16T20:44:55ZengMDPI AGGeosciences2076-32632023-02-011325310.3390/geosciences13020053The Extent of Glaciation in the Pechora Sea, Eurasian Arctic, Based on Submarine Glacial LandformsSergey Nikiforov0Roman Ananiev1Martin Jakobsson2Evgeny Moroz3Sergey Sokolov4Nikolay Sorokhtin5Nikolay Dmitrevsky6Elena Sukhikh7Igor Chickiryov8Yulia Zarayskaya9Anatoly Razumovskiy10Igor Semiletov11Shirshov Institute of Oceanology, Russian Academy of Sciences, 117997 Moscow, RussiaShirshov Institute of Oceanology, Russian Academy of Sciences, 117997 Moscow, RussiaDepartment of Geological Sciences, Stockholm University, 106 91 Stockholm, SwedenGeological Institute, Russian Academy of Sciences, 119017 Moscow, RussiaGeological Institute, Russian Academy of Sciences, 119017 Moscow, RussiaShirshov Institute of Oceanology, Russian Academy of Sciences, 117997 Moscow, RussiaShirshov Institute of Oceanology, Russian Academy of Sciences, 117997 Moscow, RussiaGeological Institute, Russian Academy of Sciences, 119017 Moscow, RussiaDepartment of Geology and Mineral Resourses, Apatity Branch of Murmansk State Technical University, 184209 Apatity, RussiaGeological Institute, Russian Academy of Sciences, 119017 Moscow, RussiaGeological Institute, Russian Academy of Sciences, 119017 Moscow, RussiaLaboratory for Integrated Research of the Arctic Land-Shelf System, National Research Tomsk State University, 36 Leninsky Ave., 634050 Tomsk, RussiaThe Pechora Sea is optimally located for studying the coalescence of a glacial and periglacial continental shelf zone in the high Arctic. Here, we present data acquired during cruises of the RV <i>Akademik Nikolaj Strakhov</i> in 2018–2021, revealing the distribution of submarine glacial landforms in the central part of the Pechora shelf area. Based on moraines and the distribution of glacial lineations, the extent of the ice sheet during the Last Glacial Maximum (LGM) is proposed. The crests of the moraine ridges and the slopes of their sides express a variation in morphology, and the ridges combine into irregular complexes. The moraines are primarily composed of coarse cobble-sized material with an addition of coarse sand and other sedimentary fractions. The mapped glacial landforms clearly indicate that an ice sheet extended over the area, while the Pechora basin, at the same time, was comprised of lowland characterized by a cryogenic subaerial landscape. Based on the result from this study, the extent and ice-flow pattern of the Barents-Kara Ice Sheet during the LGM were determined.https://www.mdpi.com/2076-3263/13/2/53glacial landformsmorainesice sheetarctic shelfglacial lineations |
| spellingShingle | Sergey Nikiforov Roman Ananiev Martin Jakobsson Evgeny Moroz Sergey Sokolov Nikolay Sorokhtin Nikolay Dmitrevsky Elena Sukhikh Igor Chickiryov Yulia Zarayskaya Anatoly Razumovskiy Igor Semiletov The Extent of Glaciation in the Pechora Sea, Eurasian Arctic, Based on Submarine Glacial Landforms Geosciences glacial landforms moraines ice sheet arctic shelf glacial lineations |
| title | The Extent of Glaciation in the Pechora Sea, Eurasian Arctic, Based on Submarine Glacial Landforms |
| title_full | The Extent of Glaciation in the Pechora Sea, Eurasian Arctic, Based on Submarine Glacial Landforms |
| title_fullStr | The Extent of Glaciation in the Pechora Sea, Eurasian Arctic, Based on Submarine Glacial Landforms |
| title_full_unstemmed | The Extent of Glaciation in the Pechora Sea, Eurasian Arctic, Based on Submarine Glacial Landforms |
| title_short | The Extent of Glaciation in the Pechora Sea, Eurasian Arctic, Based on Submarine Glacial Landforms |
| title_sort | extent of glaciation in the pechora sea eurasian arctic based on submarine glacial landforms |
| topic | glacial landforms moraines ice sheet arctic shelf glacial lineations |
| url | https://www.mdpi.com/2076-3263/13/2/53 |
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