Comparative lithological characteristics of modern sediments of the Kara and Pechora Seas
Global climate warming and increased anthropogenic pressure on the Arctic shelf contribute to the development of thermoabrasive processes along the coast of the western sector of the Russian Arctic.Comprehensive geophysical, hydroacoustic, geological-geomorphological, and hydrophysical scientific st...
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ftoceandocs:oai:aquadocs.org:1834/41536 2023-05-15T15:03:54+02:00 Comparative lithological characteristics of modern sediments of the Kara and Pechora Seas Сравнительная литологическая характеристика современных осадков Карского и Печорского морей Chikirev, I. V. Uliantsev, A.S. Nikiforov, S.L. Sorokhtin, N. O. Dmitrevskiy, N. N. Libina, N. V. Kovalev, G. A. Kara Sea Pechora Sea Карское море Печорское море 2020 pp.93-101 http://hdl.handle.net/1834/41536 ru rus http://vestnik.mstu.edu.ru/show-eng.shtml?art=2056 http://vestnik.mstu.edu.ru/show.shtml?art=2056 http://hdl.handle.net/1834/41536 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ Bottom sediments Landscape Донные осадки Рельеф ASFA_2015::O::Oceanology ASFA_2015::L::Lithology Journal Contribution 2020 ftoceandocs 2023-04-06T17:07:00Z Global climate warming and increased anthropogenic pressure on the Arctic shelf contribute to the development of thermoabrasive processes along the coast of the western sector of the Russian Arctic.Comprehensive geophysical, hydroacoustic, geological-geomorphological, and hydrophysical scientific studies were carried out within the Kara and Pechora Seas in June – July 2019, during the 41st cruise of the R/V Akademik Nikolai Strakhov.To test modern sediments, bottom grabbers and shock tube were used. The sampling points were selected based on the materials of continuous seismic profiling and bathymetric bottom survey.As a result of the studies, mapping of the relief and modern sediments within the Kara and Pechora Seas has been carried out and it has been found that the Pechora basin is characterized by various types of sediments and deposits (pelitic mud, aleurite-pelitic mud, clay, silt, sand, moraine deposits), and the Kara Sea is mainly inhabited by thin sediments (pelitic mud). A small amount of sand and siltstone among the bottom sediments of the Kara basin should be associated with an insignificant introduction of terrigenousclastic material from the continent and its deep water. The wide distribution in the southern and central parts of the Pechora Sea of psammiticfacies is due to its shallow water, intensive supply of a large amount of sand-silty material by river flow, processes of solifluction and thermal abrasion of the coasts. In 2020, the next flight of the R/V Akademik Nikolai Strakhov is planned to continue the study of the upper sedimentary stratum and topography of the seabed of the western sector of the Russian Arctic. The purpose of the study is to substantiate the most likely scenario for the development of changes in the natural environment on the shelf, associated primarily with a reduction in the area of ice cover. Глобальное потепление климата и усиление антропогенной нагрузки на арктический шельф способствуют развитию термоабразивных процессов побережья западного сектора российской ... Other Non-Article Part of Journal/Newspaper Arctic Kara Sea Pechora Pechora Sea IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications Arctic Kara Sea |
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Open Polar |
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IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
op_collection_id |
ftoceandocs |
language |
Russian |
topic |
Bottom sediments Landscape Донные осадки Рельеф ASFA_2015::O::Oceanology ASFA_2015::L::Lithology |
spellingShingle |
Bottom sediments Landscape Донные осадки Рельеф ASFA_2015::O::Oceanology ASFA_2015::L::Lithology Chikirev, I. V. Uliantsev, A.S. Nikiforov, S.L. Sorokhtin, N. O. Dmitrevskiy, N. N. Libina, N. V. Kovalev, G. A. Comparative lithological characteristics of modern sediments of the Kara and Pechora Seas |
topic_facet |
Bottom sediments Landscape Донные осадки Рельеф ASFA_2015::O::Oceanology ASFA_2015::L::Lithology |
description |
Global climate warming and increased anthropogenic pressure on the Arctic shelf contribute to the development of thermoabrasive processes along the coast of the western sector of the Russian Arctic.Comprehensive geophysical, hydroacoustic, geological-geomorphological, and hydrophysical scientific studies were carried out within the Kara and Pechora Seas in June – July 2019, during the 41st cruise of the R/V Akademik Nikolai Strakhov.To test modern sediments, bottom grabbers and shock tube were used. The sampling points were selected based on the materials of continuous seismic profiling and bathymetric bottom survey.As a result of the studies, mapping of the relief and modern sediments within the Kara and Pechora Seas has been carried out and it has been found that the Pechora basin is characterized by various types of sediments and deposits (pelitic mud, aleurite-pelitic mud, clay, silt, sand, moraine deposits), and the Kara Sea is mainly inhabited by thin sediments (pelitic mud). A small amount of sand and siltstone among the bottom sediments of the Kara basin should be associated with an insignificant introduction of terrigenousclastic material from the continent and its deep water. The wide distribution in the southern and central parts of the Pechora Sea of psammiticfacies is due to its shallow water, intensive supply of a large amount of sand-silty material by river flow, processes of solifluction and thermal abrasion of the coasts. In 2020, the next flight of the R/V Akademik Nikolai Strakhov is planned to continue the study of the upper sedimentary stratum and topography of the seabed of the western sector of the Russian Arctic. The purpose of the study is to substantiate the most likely scenario for the development of changes in the natural environment on the shelf, associated primarily with a reduction in the area of ice cover. Глобальное потепление климата и усиление антропогенной нагрузки на арктический шельф способствуют развитию термоабразивных процессов побережья западного сектора российской ... |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Chikirev, I. V. Uliantsev, A.S. Nikiforov, S.L. Sorokhtin, N. O. Dmitrevskiy, N. N. Libina, N. V. Kovalev, G. A. |
author_facet |
Chikirev, I. V. Uliantsev, A.S. Nikiforov, S.L. Sorokhtin, N. O. Dmitrevskiy, N. N. Libina, N. V. Kovalev, G. A. |
author_sort |
Chikirev, I. V. |
title |
Comparative lithological characteristics of modern sediments of the Kara and Pechora Seas |
title_short |
Comparative lithological characteristics of modern sediments of the Kara and Pechora Seas |
title_full |
Comparative lithological characteristics of modern sediments of the Kara and Pechora Seas |
title_fullStr |
Comparative lithological characteristics of modern sediments of the Kara and Pechora Seas |
title_full_unstemmed |
Comparative lithological characteristics of modern sediments of the Kara and Pechora Seas |
title_sort |
comparative lithological characteristics of modern sediments of the kara and pechora seas |
publishDate |
2020 |
url |
http://hdl.handle.net/1834/41536 |
op_coverage |
Kara Sea Pechora Sea Карское море Печорское море |
geographic |
Arctic Kara Sea |
geographic_facet |
Arctic Kara Sea |
genre |
Arctic Kara Sea Pechora Pechora Sea |
genre_facet |
Arctic Kara Sea Pechora Pechora Sea |
op_relation |
http://vestnik.mstu.edu.ru/show-eng.shtml?art=2056 http://vestnik.mstu.edu.ru/show.shtml?art=2056 http://hdl.handle.net/1834/41536 |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
_version_ |
1766335744160301056 |