Stratigraphic and environmental implications of a large ice‐wedge cast at Tjæreborg, Denmark
Abstract Exceptionally large ice‐wedge casts and composite‐wedge casts occur together with involutions (cryoturbations) in a gravel pit near Tjæreborg, western Jutland. The filling reveals distinctly different, vertically‐orientated sedimentary units, suggesting discrete events. Variations in wedge...
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crwiley:10.1002/ppp.479 2024-09-15T18:30:02+00:00 Stratigraphic and environmental implications of a large ice‐wedge cast at Tjæreborg, Denmark Kolstrup, Else 2004 http://dx.doi.org/10.1002/ppp.479 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.479 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.479 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 15, issue 1, page 31-40 ISSN 1045-6740 1099-1530 journal-article 2004 crwiley https://doi.org/10.1002/ppp.479 2024-07-25T04:19:03Z Abstract Exceptionally large ice‐wedge casts and composite‐wedge casts occur together with involutions (cryoturbations) in a gravel pit near Tjæreborg, western Jutland. The filling reveals distinctly different, vertically‐orientated sedimentary units, suggesting discrete events. Variations in wedge structure and infill between the different exposures suggest differences with alternating pools and drier conditions over the former wedges. In an attempt to date and correlate crack development a perusal of local glacial history is given and optically‐stimulated‐luminescence (OSL) dates are presented. A review of Saalian and early Weichselian wedge casts and deep involutions in other areas in northwest Europe is provided for correlation. It is suggested that the cracking in Tjæreborg took place during the Saale or/and early Weichselian. The existence of such old wedges shows that the present land surface has probably existed since the Saalian, leaving the ground available for cracking and infilling during succeeding periods of permafrost. Copyright © 2004 John Wiley & Sons, Ltd. Article in Journal/Newspaper permafrost Permafrost and Periglacial Processes Wiley Online Library Permafrost and Periglacial Processes 15 1 31 40 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Exceptionally large ice‐wedge casts and composite‐wedge casts occur together with involutions (cryoturbations) in a gravel pit near Tjæreborg, western Jutland. The filling reveals distinctly different, vertically‐orientated sedimentary units, suggesting discrete events. Variations in wedge structure and infill between the different exposures suggest differences with alternating pools and drier conditions over the former wedges. In an attempt to date and correlate crack development a perusal of local glacial history is given and optically‐stimulated‐luminescence (OSL) dates are presented. A review of Saalian and early Weichselian wedge casts and deep involutions in other areas in northwest Europe is provided for correlation. It is suggested that the cracking in Tjæreborg took place during the Saale or/and early Weichselian. The existence of such old wedges shows that the present land surface has probably existed since the Saalian, leaving the ground available for cracking and infilling during succeeding periods of permafrost. Copyright © 2004 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Kolstrup, Else |
spellingShingle |
Kolstrup, Else Stratigraphic and environmental implications of a large ice‐wedge cast at Tjæreborg, Denmark |
author_facet |
Kolstrup, Else |
author_sort |
Kolstrup, Else |
title |
Stratigraphic and environmental implications of a large ice‐wedge cast at Tjæreborg, Denmark |
title_short |
Stratigraphic and environmental implications of a large ice‐wedge cast at Tjæreborg, Denmark |
title_full |
Stratigraphic and environmental implications of a large ice‐wedge cast at Tjæreborg, Denmark |
title_fullStr |
Stratigraphic and environmental implications of a large ice‐wedge cast at Tjæreborg, Denmark |
title_full_unstemmed |
Stratigraphic and environmental implications of a large ice‐wedge cast at Tjæreborg, Denmark |
title_sort |
stratigraphic and environmental implications of a large ice‐wedge cast at tjæreborg, denmark |
publisher |
Wiley |
publishDate |
2004 |
url |
http://dx.doi.org/10.1002/ppp.479 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.479 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.479 |
genre |
permafrost Permafrost and Periglacial Processes |
genre_facet |
permafrost Permafrost and Periglacial Processes |
op_source |
Permafrost and Periglacial Processes volume 15, issue 1, page 31-40 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.479 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
15 |
container_issue |
1 |
container_start_page |
31 |
op_container_end_page |
40 |
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1810471529730801664 |