Comparison of overdeepened structures in formerly glaciated areas of the northern Alpine foreland and northern central Europe

<p>Overdeepened structures occur in formerly and presently glaciated regions around the earth and are usually referred to as overdeepenings or tunnel valleys. The existence of such troughs has been known for more than a century, and they have been attributed to similar formation processes wher...

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Main Authors: L. Gegg, F. Preusser
Format: Article
Language:deu
Published: Copernicus Publications 2023-01-01
Series:Eiszeitalter und Gegenwart
Online Access:https://egqsj.copernicus.org/articles/72/23/2023/egqsj-72-23-2023.pdf
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author L. Gegg
F. Preusser
author_facet L. Gegg
F. Preusser
author_sort L. Gegg
collection DOAJ
description <p>Overdeepened structures occur in formerly and presently glaciated regions around the earth and are usually referred to as overdeepenings or tunnel valleys. The existence of such troughs has been known for more than a century, and they have been attributed to similar formation processes where subglacial meltwater plays a decisive role. This comparison highlights that (foreland) overdeepenings and tunnel valleys further occur in similar dimensions and share many characteristics such as gently sinuous shapes in plan view, undulating long profiles with terminal adverse slopes, and varying cross-sectional morphologies. The best explored examples of overdeepened structures are situated in and around the European Alps and in the central European lowlands. Especially in the vicinity of the Alps, some individual troughs are well explored, allowing for a reconstruction of their infill history, whereas only a few detailed studies, notably such involving long drill core records, have been presented from northern central Europe. We suggest that more such studies could significantly further our understanding of subglacial erosion processes and the regional glaciation histories and aim to promote more intense exchange and discussion between the respective scientific communities.</p>
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spelling doaj.art-4ead6d15b00f42c19465763797db667c2023-01-20T14:39:15ZdeuCopernicus PublicationsEiszeitalter und Gegenwart0424-71162199-90902023-01-0172233610.5194/egqsj-72-23-2023Comparison of overdeepened structures in formerly glaciated areas of the northern Alpine foreland and northern central EuropeL. GeggF. Preusser<p>Overdeepened structures occur in formerly and presently glaciated regions around the earth and are usually referred to as overdeepenings or tunnel valleys. The existence of such troughs has been known for more than a century, and they have been attributed to similar formation processes where subglacial meltwater plays a decisive role. This comparison highlights that (foreland) overdeepenings and tunnel valleys further occur in similar dimensions and share many characteristics such as gently sinuous shapes in plan view, undulating long profiles with terminal adverse slopes, and varying cross-sectional morphologies. The best explored examples of overdeepened structures are situated in and around the European Alps and in the central European lowlands. Especially in the vicinity of the Alps, some individual troughs are well explored, allowing for a reconstruction of their infill history, whereas only a few detailed studies, notably such involving long drill core records, have been presented from northern central Europe. We suggest that more such studies could significantly further our understanding of subglacial erosion processes and the regional glaciation histories and aim to promote more intense exchange and discussion between the respective scientific communities.</p>https://egqsj.copernicus.org/articles/72/23/2023/egqsj-72-23-2023.pdf
spellingShingle L. Gegg
F. Preusser
Comparison of overdeepened structures in formerly glaciated areas of the northern Alpine foreland and northern central Europe
Eiszeitalter und Gegenwart
title Comparison of overdeepened structures in formerly glaciated areas of the northern Alpine foreland and northern central Europe
title_full Comparison of overdeepened structures in formerly glaciated areas of the northern Alpine foreland and northern central Europe
title_fullStr Comparison of overdeepened structures in formerly glaciated areas of the northern Alpine foreland and northern central Europe
title_full_unstemmed Comparison of overdeepened structures in formerly glaciated areas of the northern Alpine foreland and northern central Europe
title_short Comparison of overdeepened structures in formerly glaciated areas of the northern Alpine foreland and northern central Europe
title_sort comparison of overdeepened structures in formerly glaciated areas of the northern alpine foreland and northern central europe
url https://egqsj.copernicus.org/articles/72/23/2023/egqsj-72-23-2023.pdf
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