Age and sedimentological features of fluvial series in the Toruń Basin and the Drwęca Valley (Poland)
Abstract The deposits of the Toruń Basin are dominated by a few-metre thick sand series which fill up buried valley-like depressions. In many cases they underlie the Weichselian till which builds up the ice marginal streamway (pradolina) terraces or they are exposed at the basin slopes. As the resul...
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Walter de Gruyter GmbH
2011
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Online Access: | http://dx.doi.org/10.2478/s13386-011-0038-1 https://www.degruyter.com/view/j/geochr.2011.38.issue-4/s13386-011-0038-1/s13386-011-0038-1.pdf |
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crdegruytopen:10.2478/s13386-011-0038-1 2023-05-15T16:41:25+02:00 Age and sedimentological features of fluvial series in the Toruń Basin and the Drwęca Valley (Poland) Weckwerth, Piotr Przegiętka, Krzysztof Chruścińska, Alicja Woronko, Barbara Oczkowski, Hubert 2011 http://dx.doi.org/10.2478/s13386-011-0038-1 https://www.degruyter.com/view/j/geochr.2011.38.issue-4/s13386-011-0038-1/s13386-011-0038-1.pdf unknown Walter de Gruyter GmbH Geochronometria volume 38, issue 4 ISSN 1897-1695 journal-article 2011 crdegruytopen https://doi.org/10.2478/s13386-011-0038-1 2017-10-31T21:02:30Z Abstract The deposits of the Toruń Basin are dominated by a few-metre thick sand series which fill up buried valley-like depressions. In many cases they underlie the Weichselian till which builds up the ice marginal streamway (pradolina) terraces or they are exposed at the basin slopes. As the results of the geological and sedimentological studies, as well as of the dating of the deposits at the sites in the Toruń Basin indicate, the deposits include two fluvial series accumulated before the advancement of the Leszno Phase ice sheet, i.e. in Middle Weichselian and at the beginning of Late Weichselian. The oldest fluvial series connected with the Saalian Glaciation was found at the mouth section of the Drwęca Valley. The fluvial system of the Toruń Basin during Middle Weichselian and at the beginning of Late Weichselian developed in two phases of the sand-bed braided river. During the first one the river channel were dominated by large mid-riverbed sandbars, while during the second phase the water flow was smaller and, as a result, low transverse sandbars and two-dimensional dunes developed. Other active river channel also showed low-energy flows, more intensive meandering than in the case of the braided rivers, as well as sandy side-bars. Analysis of the rounding and frosting of the quartz grains indicate that the studied series of the Weichselian sandy deposits represent alluvia of a river which were fed from two diverse sources. The first one might have represented the alluvia of a warm river which transformed its load, while the other one might have mainly carried the underlying Quaternary deposits. Article in Journal/Newspaper Ice Sheet Sciendo (de Gruyter - via CrossRef) Geochronometria 38 4 397 412 |
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Sciendo (de Gruyter - via CrossRef) |
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Abstract The deposits of the Toruń Basin are dominated by a few-metre thick sand series which fill up buried valley-like depressions. In many cases they underlie the Weichselian till which builds up the ice marginal streamway (pradolina) terraces or they are exposed at the basin slopes. As the results of the geological and sedimentological studies, as well as of the dating of the deposits at the sites in the Toruń Basin indicate, the deposits include two fluvial series accumulated before the advancement of the Leszno Phase ice sheet, i.e. in Middle Weichselian and at the beginning of Late Weichselian. The oldest fluvial series connected with the Saalian Glaciation was found at the mouth section of the Drwęca Valley. The fluvial system of the Toruń Basin during Middle Weichselian and at the beginning of Late Weichselian developed in two phases of the sand-bed braided river. During the first one the river channel were dominated by large mid-riverbed sandbars, while during the second phase the water flow was smaller and, as a result, low transverse sandbars and two-dimensional dunes developed. Other active river channel also showed low-energy flows, more intensive meandering than in the case of the braided rivers, as well as sandy side-bars. Analysis of the rounding and frosting of the quartz grains indicate that the studied series of the Weichselian sandy deposits represent alluvia of a river which were fed from two diverse sources. The first one might have represented the alluvia of a warm river which transformed its load, while the other one might have mainly carried the underlying Quaternary deposits. |
format |
Article in Journal/Newspaper |
author |
Weckwerth, Piotr Przegiętka, Krzysztof Chruścińska, Alicja Woronko, Barbara Oczkowski, Hubert |
spellingShingle |
Weckwerth, Piotr Przegiętka, Krzysztof Chruścińska, Alicja Woronko, Barbara Oczkowski, Hubert Age and sedimentological features of fluvial series in the Toruń Basin and the Drwęca Valley (Poland) |
author_facet |
Weckwerth, Piotr Przegiętka, Krzysztof Chruścińska, Alicja Woronko, Barbara Oczkowski, Hubert |
author_sort |
Weckwerth, Piotr |
title |
Age and sedimentological features of fluvial series in the Toruń Basin and the Drwęca Valley (Poland) |
title_short |
Age and sedimentological features of fluvial series in the Toruń Basin and the Drwęca Valley (Poland) |
title_full |
Age and sedimentological features of fluvial series in the Toruń Basin and the Drwęca Valley (Poland) |
title_fullStr |
Age and sedimentological features of fluvial series in the Toruń Basin and the Drwęca Valley (Poland) |
title_full_unstemmed |
Age and sedimentological features of fluvial series in the Toruń Basin and the Drwęca Valley (Poland) |
title_sort |
age and sedimentological features of fluvial series in the toruń basin and the drwęca valley (poland) |
publisher |
Walter de Gruyter GmbH |
publishDate |
2011 |
url |
http://dx.doi.org/10.2478/s13386-011-0038-1 https://www.degruyter.com/view/j/geochr.2011.38.issue-4/s13386-011-0038-1/s13386-011-0038-1.pdf |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Geochronometria volume 38, issue 4 ISSN 1897-1695 |
op_doi |
https://doi.org/10.2478/s13386-011-0038-1 |
container_title |
Geochronometria |
container_volume |
38 |
container_issue |
4 |
container_start_page |
397 |
op_container_end_page |
412 |
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1766031843630514176 |