The role of lake basin history on palynological records from the Upper Kolyma region (northeastern Siberia)
Abstract Paleoecological and modern studies at Priyatnoye Lake, which is located within an intermontane depression in the interior of northeastern Siberia, indicate a similar paleovegetation record as has been documented for nearby mountain valleys, but a history of basin stability and instability t...
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crcambridgeupr:10.1017/qua.2022.47 2024-04-28T08:23:43+00:00 The role of lake basin history on palynological records from the Upper Kolyma region (northeastern Siberia) Lozhkin, Anatoly V. Anderson, Patricia M. Regel, Kira V. 2022 http://dx.doi.org/10.1017/qua.2022.47 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589422000473 en eng Cambridge University Press (CUP) https://creativecommons.org/licenses/by/4.0/ Quaternary Research volume 112, page 51-66 ISSN 0033-5894 1096-0287 General Earth and Planetary Sciences Earth-Surface Processes Arts and Humanities (miscellaneous) journal-article 2022 crcambridgeupr https://doi.org/10.1017/qua.2022.47 2024-04-09T06:55:41Z Abstract Paleoecological and modern studies at Priyatnoye Lake, which is located within an intermontane depression in the interior of northeastern Siberia, indicate a similar paleovegetation record as has been documented for nearby mountain valleys, but a history of basin stability and instability that is uncharacteristic of the valley lakes. Analyses of a 385-cm-long core from the western basin of Priyatnoye Lake shows that sediment accumulation began in late Marine Oxygen Isotope Stage 3 (MIS 3), followed by a hiatus during MIS 2, and then continuous accumulation over the past ca. 14,000 cal yr BP. The eastern basin of the lake has a sediment thickness of ~35 cm, suggesting that it intermittently contained water and/or is younger than the western basin. A drop in lake levels between AD 2005 and AD 2009 resulted in the formation of two distinct lakes. This change was caused by the melting of underlying ice wedges and the formation of sinkholes through which the lake water drained. Although the northern coastal lowlands have been the geographic focus of permafrost global warming research, the Priyatnoye study draws attention to the intermontane depressions in northeastern Siberia. While less extensive, these depressions contain organic-rich deposits, are underlain by permafrost, and have the potential to affect future carbon budgets as global temperatures rise and permafrost melts. Article in Journal/Newspaper Ice permafrost wedge* Siberia Cambridge University Press Quaternary Research 1 16 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
topic |
General Earth and Planetary Sciences Earth-Surface Processes Arts and Humanities (miscellaneous) |
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General Earth and Planetary Sciences Earth-Surface Processes Arts and Humanities (miscellaneous) Lozhkin, Anatoly V. Anderson, Patricia M. Regel, Kira V. The role of lake basin history on palynological records from the Upper Kolyma region (northeastern Siberia) |
topic_facet |
General Earth and Planetary Sciences Earth-Surface Processes Arts and Humanities (miscellaneous) |
description |
Abstract Paleoecological and modern studies at Priyatnoye Lake, which is located within an intermontane depression in the interior of northeastern Siberia, indicate a similar paleovegetation record as has been documented for nearby mountain valleys, but a history of basin stability and instability that is uncharacteristic of the valley lakes. Analyses of a 385-cm-long core from the western basin of Priyatnoye Lake shows that sediment accumulation began in late Marine Oxygen Isotope Stage 3 (MIS 3), followed by a hiatus during MIS 2, and then continuous accumulation over the past ca. 14,000 cal yr BP. The eastern basin of the lake has a sediment thickness of ~35 cm, suggesting that it intermittently contained water and/or is younger than the western basin. A drop in lake levels between AD 2005 and AD 2009 resulted in the formation of two distinct lakes. This change was caused by the melting of underlying ice wedges and the formation of sinkholes through which the lake water drained. Although the northern coastal lowlands have been the geographic focus of permafrost global warming research, the Priyatnoye study draws attention to the intermontane depressions in northeastern Siberia. While less extensive, these depressions contain organic-rich deposits, are underlain by permafrost, and have the potential to affect future carbon budgets as global temperatures rise and permafrost melts. |
format |
Article in Journal/Newspaper |
author |
Lozhkin, Anatoly V. Anderson, Patricia M. Regel, Kira V. |
author_facet |
Lozhkin, Anatoly V. Anderson, Patricia M. Regel, Kira V. |
author_sort |
Lozhkin, Anatoly V. |
title |
The role of lake basin history on palynological records from the Upper Kolyma region (northeastern Siberia) |
title_short |
The role of lake basin history on palynological records from the Upper Kolyma region (northeastern Siberia) |
title_full |
The role of lake basin history on palynological records from the Upper Kolyma region (northeastern Siberia) |
title_fullStr |
The role of lake basin history on palynological records from the Upper Kolyma region (northeastern Siberia) |
title_full_unstemmed |
The role of lake basin history on palynological records from the Upper Kolyma region (northeastern Siberia) |
title_sort |
role of lake basin history on palynological records from the upper kolyma region (northeastern siberia) |
publisher |
Cambridge University Press (CUP) |
publishDate |
2022 |
url |
http://dx.doi.org/10.1017/qua.2022.47 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589422000473 |
genre |
Ice permafrost wedge* Siberia |
genre_facet |
Ice permafrost wedge* Siberia |
op_source |
Quaternary Research volume 112, page 51-66 ISSN 0033-5894 1096-0287 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/qua.2022.47 |
container_title |
Quaternary Research |
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1 |
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16 |
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1797584477438869504 |