Huge Ice-age Lakes in Russia
During an early phase of the Last Ice Age (Weichselian, Valdaian), about 90 000 yr ago, an ice sheet formed over the shallow Barents and Kara seas. The ice front advanced on to mainland Russia and blocked the north-flowing rivers (Yenissei, Ob, Pechora, Dvina and others) that supply most of the fres...
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ftuninhampshire:oai:scholars.unh.edu:ccom-1964 2023-05-15T14:49:19+02:00 Huge Ice-age Lakes in Russia Mangerud, Jan Astakov, Valery Jakobsson, Martin Svendsen, John Inge 2001-12-01T08:00:00Z https://scholars.unh.edu/ccom/964 http://onlinelibrary.wiley.com/doi/10.1002/jqs.661/abstract unknown University of New Hampshire Scholars' Repository https://scholars.unh.edu/ccom/964 http://onlinelibrary.wiley.com/doi/10.1002/jqs.661/abstract Copyright © 2001 John Wiley & Sons, Ltd. Center for Coastal and Ocean Mapping northern Russia;Siberia;Arctic Ocean;Caspian Sea;ice-dammed lakes;Early Weichselian;Barents Ice Sheet;Kara Ice Sheet Oceanography and Atmospheric Sciences and Meteorology text 2001 ftuninhampshire 2023-01-30T21:33:29Z During an early phase of the Last Ice Age (Weichselian, Valdaian), about 90 000 yr ago, an ice sheet formed over the shallow Barents and Kara seas. The ice front advanced on to mainland Russia and blocked the north-flowing rivers (Yenissei, Ob, Pechora, Dvina and others) that supply most of the freshwater to the Arctic Ocean. The result was that large ice-dammed lakes were formed between the ice sheet in the north and the continental water divides to the south. Here we present reconstructions and calculations of the areas and volumes of these lakes. The lake on the West Siberian Plain was nearly twice as large as the largest lake on Earth today. The well-mapped Lake Komi in northeast Europe and a postulated lake in the White Sea Basin would also rank before the present-day third largest lake. The lakes overflowed towards the south and thus the drainage of much of the Eurasian continent was reversed. The result was a major change in the water balance on the continent, decreased freshwater supply to the Arctic Ocean, and increased freshwater flow to the Aral, Caspian, Black and Baltic seas. A sudden outburst of the lakes' water to the Arctic Ocean when the ice sheet thinned is postulated. Copyright © 2001 John Wiley & Sons, Ltd. Text Arctic Arctic Ocean dvina Ice Sheet Pechora Sea ice White Sea Siberia University of New Hampshire: Scholars Repository Arctic Arctic Ocean White Sea |
institution |
Open Polar |
collection |
University of New Hampshire: Scholars Repository |
op_collection_id |
ftuninhampshire |
language |
unknown |
topic |
northern Russia;Siberia;Arctic Ocean;Caspian Sea;ice-dammed lakes;Early Weichselian;Barents Ice Sheet;Kara Ice Sheet Oceanography and Atmospheric Sciences and Meteorology |
spellingShingle |
northern Russia;Siberia;Arctic Ocean;Caspian Sea;ice-dammed lakes;Early Weichselian;Barents Ice Sheet;Kara Ice Sheet Oceanography and Atmospheric Sciences and Meteorology Mangerud, Jan Astakov, Valery Jakobsson, Martin Svendsen, John Inge Huge Ice-age Lakes in Russia |
topic_facet |
northern Russia;Siberia;Arctic Ocean;Caspian Sea;ice-dammed lakes;Early Weichselian;Barents Ice Sheet;Kara Ice Sheet Oceanography and Atmospheric Sciences and Meteorology |
description |
During an early phase of the Last Ice Age (Weichselian, Valdaian), about 90 000 yr ago, an ice sheet formed over the shallow Barents and Kara seas. The ice front advanced on to mainland Russia and blocked the north-flowing rivers (Yenissei, Ob, Pechora, Dvina and others) that supply most of the freshwater to the Arctic Ocean. The result was that large ice-dammed lakes were formed between the ice sheet in the north and the continental water divides to the south. Here we present reconstructions and calculations of the areas and volumes of these lakes. The lake on the West Siberian Plain was nearly twice as large as the largest lake on Earth today. The well-mapped Lake Komi in northeast Europe and a postulated lake in the White Sea Basin would also rank before the present-day third largest lake. The lakes overflowed towards the south and thus the drainage of much of the Eurasian continent was reversed. The result was a major change in the water balance on the continent, decreased freshwater supply to the Arctic Ocean, and increased freshwater flow to the Aral, Caspian, Black and Baltic seas. A sudden outburst of the lakes' water to the Arctic Ocean when the ice sheet thinned is postulated. Copyright © 2001 John Wiley & Sons, Ltd. |
format |
Text |
author |
Mangerud, Jan Astakov, Valery Jakobsson, Martin Svendsen, John Inge |
author_facet |
Mangerud, Jan Astakov, Valery Jakobsson, Martin Svendsen, John Inge |
author_sort |
Mangerud, Jan |
title |
Huge Ice-age Lakes in Russia |
title_short |
Huge Ice-age Lakes in Russia |
title_full |
Huge Ice-age Lakes in Russia |
title_fullStr |
Huge Ice-age Lakes in Russia |
title_full_unstemmed |
Huge Ice-age Lakes in Russia |
title_sort |
huge ice-age lakes in russia |
publisher |
University of New Hampshire Scholars' Repository |
publishDate |
2001 |
url |
https://scholars.unh.edu/ccom/964 http://onlinelibrary.wiley.com/doi/10.1002/jqs.661/abstract |
geographic |
Arctic Arctic Ocean White Sea |
geographic_facet |
Arctic Arctic Ocean White Sea |
genre |
Arctic Arctic Ocean dvina Ice Sheet Pechora Sea ice White Sea Siberia |
genre_facet |
Arctic Arctic Ocean dvina Ice Sheet Pechora Sea ice White Sea Siberia |
op_source |
Center for Coastal and Ocean Mapping |
op_relation |
https://scholars.unh.edu/ccom/964 http://onlinelibrary.wiley.com/doi/10.1002/jqs.661/abstract |
op_rights |
Copyright © 2001 John Wiley & Sons, Ltd. |
_version_ |
1766320377527533568 |