Reconstruction of the Vistula ice stream during the Last Glacial Maximum in Poland
The variability of ice movement directions within the Vistula lobe of the Main Stadial ice sheet of the last glaciation is analysed. Reconstruction of the ice movement directions is made based on analysis of the orientation of glacial morpholineaments. Linear glacial landforms are analysed on the ba...
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Polish Geological Institute-National Research Institute
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ftjgq:oai:geojournals.pgi.gov.pl:article/7521 2024-09-15T18:12:19+00:00 Reconstruction of the Vistula ice stream during the Last Glacial Maximum in Poland Morawski, Wojciech 2010-03-27 application/pdf https://gq.pgi.gov.pl/article/view/7521 eng eng Polish Geological Institute-National Research Institute https://gq.pgi.gov.pl/article/view/7521/6171 10.7306/gq.v53i3.7521.g6171 https://gq.pgi.gov.pl/article/view/7521 Geological Quarterly; Vol. 53 No. 3 (2009); 305-316 Geological Quarterly; Tom 53 Nr 3 (2009); 305-316 1641-7291 10.7306/gq.v53i3 N Poland Vistula valley Pleistocene ice stream glacial morpholineaments info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2010 ftjgq https://doi.org/10.7306/gq.v53i3 2024-07-30T03:29:08Z The variability of ice movement directions within the Vistula lobe of the Main Stadial ice sheet of the last glaciation is analysed. Reconstruction of the ice movement directions is made based on analysis of the orientation of glacial morpholineaments. Linear glacial landforms are analysed on the basis of data from 26 map sheets of the Detailed Geological Map of Poland (DGMP), scale 1:50 000, compiled earlier by various authors. The morpholineaments were investigated in a belt of morainic plateau that adjoins the Vistula valley on both sides. The analysis revealed that the last glaciation ice sheet advanced directly from the north within the broadly understood Vistula ice lobe zone, and that the ice flow direction was constant. However, within a narrow belt of the pre-Vistula River valley that was formed in the Eemian Interglacial, the 30-50 km wide ice stream was characterized by locally variable ice flow directions consistent with the pre-existing valley trend. Changes in ice flow direction are recorded in the locally variable orientation of linear glacial landforms, indicating that the ice stream was active until the deglaciation period when the present-day shapes of the glacial landforms developed. Article in Journal/Newspaper Ice Sheet Geological Quarterly |
institution |
Open Polar |
collection |
Geological Quarterly |
op_collection_id |
ftjgq |
language |
English |
topic |
N Poland Vistula valley Pleistocene ice stream glacial morpholineaments |
spellingShingle |
N Poland Vistula valley Pleistocene ice stream glacial morpholineaments Morawski, Wojciech Reconstruction of the Vistula ice stream during the Last Glacial Maximum in Poland |
topic_facet |
N Poland Vistula valley Pleistocene ice stream glacial morpholineaments |
description |
The variability of ice movement directions within the Vistula lobe of the Main Stadial ice sheet of the last glaciation is analysed. Reconstruction of the ice movement directions is made based on analysis of the orientation of glacial morpholineaments. Linear glacial landforms are analysed on the basis of data from 26 map sheets of the Detailed Geological Map of Poland (DGMP), scale 1:50 000, compiled earlier by various authors. The morpholineaments were investigated in a belt of morainic plateau that adjoins the Vistula valley on both sides. The analysis revealed that the last glaciation ice sheet advanced directly from the north within the broadly understood Vistula ice lobe zone, and that the ice flow direction was constant. However, within a narrow belt of the pre-Vistula River valley that was formed in the Eemian Interglacial, the 30-50 km wide ice stream was characterized by locally variable ice flow directions consistent with the pre-existing valley trend. Changes in ice flow direction are recorded in the locally variable orientation of linear glacial landforms, indicating that the ice stream was active until the deglaciation period when the present-day shapes of the glacial landforms developed. |
format |
Article in Journal/Newspaper |
author |
Morawski, Wojciech |
author_facet |
Morawski, Wojciech |
author_sort |
Morawski, Wojciech |
title |
Reconstruction of the Vistula ice stream during the Last Glacial Maximum in Poland |
title_short |
Reconstruction of the Vistula ice stream during the Last Glacial Maximum in Poland |
title_full |
Reconstruction of the Vistula ice stream during the Last Glacial Maximum in Poland |
title_fullStr |
Reconstruction of the Vistula ice stream during the Last Glacial Maximum in Poland |
title_full_unstemmed |
Reconstruction of the Vistula ice stream during the Last Glacial Maximum in Poland |
title_sort |
reconstruction of the vistula ice stream during the last glacial maximum in poland |
publisher |
Polish Geological Institute-National Research Institute |
publishDate |
2010 |
url |
https://gq.pgi.gov.pl/article/view/7521 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Geological Quarterly; Vol. 53 No. 3 (2009); 305-316 Geological Quarterly; Tom 53 Nr 3 (2009); 305-316 1641-7291 10.7306/gq.v53i3 |
op_relation |
https://gq.pgi.gov.pl/article/view/7521/6171 10.7306/gq.v53i3.7521.g6171 https://gq.pgi.gov.pl/article/view/7521 |
op_doi |
https://doi.org/10.7306/gq.v53i3 |
_version_ |
1810449902085341184 |