Reversible glacial-periglacial transition in response to climate changes and paraglacial dynamics: A case study from Héðinsdalsjökull (northern Iceland)
A.S.T.E.R. TEAM : Georges Aumaître, Didier Bourlès et Karim Keddadouche International audience The objective of this work is to chronologically establish the origin of the different glacial and rock glacier complex landforms deposited by Heoinsdalsjokull glacier (65 degrees 39' N, 18 degrees 55...
Published in: | Geomorphology |
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Main Authors: | , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2021
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Subjects: | |
Online Access: | https://hal.inrae.fr/hal-03321974 https://hal.inrae.fr/hal-03321974/document https://hal.inrae.fr/hal-03321974/file/2021_Palacios_geomorph.pdf https://doi.org/10.1016/j.geomorph.2021.107787 |
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ftcollegfrance:oai:HAL:hal-03321974v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Collège de France: HAL |
op_collection_id |
ftcollegfrance |
language |
English |
topic |
Northern Iceland Debris-covered glacier Rock glacier Debris-free glacier Glacial evolution Paraglacial dynamics Climatic variability [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
spellingShingle |
Northern Iceland Debris-covered glacier Rock glacier Debris-free glacier Glacial evolution Paraglacial dynamics Climatic variability [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology Palacios, David Rodríguez-Mena, Manuel Fernández-Fernández, José, M Schimmelpfennig, Irene Tanarro, Luis, M Zamorano, José, J Andrés, Nuria Úbeda, Jose Sæmundsson, Þorsteinn Brynjólfsson, Skafti Oliva, Marc Aster, Team Reversible glacial-periglacial transition in response to climate changes and paraglacial dynamics: A case study from Héðinsdalsjökull (northern Iceland) |
topic_facet |
Northern Iceland Debris-covered glacier Rock glacier Debris-free glacier Glacial evolution Paraglacial dynamics Climatic variability [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
description |
A.S.T.E.R. TEAM : Georges Aumaître, Didier Bourlès et Karim Keddadouche International audience The objective of this work is to chronologically establish the origin of the different glacial and rock glacier complex landforms deposited by Heoinsdalsjokull glacier (65 degrees 39' N, 18 degrees 55' W), in the Heoinsdalur valley (Skagafjorour fjord, Trollaskagi peninsula, central northern Iceland). Multiple methods were applied: geomorphological analysis and mapping, glacier reconstruction and equilibrium-line altitude calculation, Cosmic-Ray Exposure dating (in situ cosmogenic Cl-36), and lichenometric dating. The results reveal that a debris-free glacier receded around 6.6 +/- 0.6 ka, during the Holocene Thermal Maximum. The retreat of the glacier exposed its headwall and accelerated paraglacial dynamics. As a result, the glacier terminus evolved into a debris-covered glacier and a rock glacier at a slightly higher elevation. The front of this rock glacier stabilized shortly after it formed, although nuclide inheritance is possible, but its sector close the valley head stabilized between 1.5 and 0.6 ka. The lowest part of the debris-covered glacier (between 600 and 820 m altitude) collapsed at ca. 2.4 ka. Since then, periods of glacial advance and retreat have alternated, particularly during the Little Ice Age. The maximum advance during this phase occurred in the 15th to 17th centuries with subsequent re-advances, namely at the beginning of the 19th and 20th centuries. After a significant retreat during the first decades of the 20th century, the glacier advanced in the 1960s to 1990s, and then retreated again, in accordance with the local climatic evolution. The internal ice of both the debris-covered and the rock glacier have survived until the present day, although enhanced subsidence provides evidence of their gradual degradation. A new rock glacier developed from an ice-cored moraine from around 1940-1950 CE. Thus, the Holocene coupling between paraglacial and climatic shifts has resulted in a complex ... |
author2 |
Universidad Complutense de Madrid = Complutense University of Madrid Madrid (UCM) Universidade de Lisboa = University of Lisbon = Université de Lisbonne (ULISBOA) Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Universidad Nacional Autónoma de México = National Autonomous University of Mexico (UNAM) University of Iceland Reykjavik Icelandic Institute of Natural History Universitat de Barcelona (UB) R108/20-20 (Santander Bank-UCM Projects) Nils Mobility Program (EEA GRANTS High Mountain Physical Geography Research Group (Universidad Complutense de Madrid) NUNANTAR project (02/SAICT/2017 32002; Fundação para a Ciência e a Tecnologia, Portugal) Ramón y Cajal Program (RYC-2015-17597) Research Group ANTALP (Antarctic, Arctic, Alpine Environments; 2017-SGR-1102) funded by the Government of Catalonia. |
format |
Article in Journal/Newspaper |
author |
Palacios, David Rodríguez-Mena, Manuel Fernández-Fernández, José, M Schimmelpfennig, Irene Tanarro, Luis, M Zamorano, José, J Andrés, Nuria Úbeda, Jose Sæmundsson, Þorsteinn Brynjólfsson, Skafti Oliva, Marc Aster, Team |
author_facet |
Palacios, David Rodríguez-Mena, Manuel Fernández-Fernández, José, M Schimmelpfennig, Irene Tanarro, Luis, M Zamorano, José, J Andrés, Nuria Úbeda, Jose Sæmundsson, Þorsteinn Brynjólfsson, Skafti Oliva, Marc Aster, Team |
author_sort |
Palacios, David |
title |
Reversible glacial-periglacial transition in response to climate changes and paraglacial dynamics: A case study from Héðinsdalsjökull (northern Iceland) |
title_short |
Reversible glacial-periglacial transition in response to climate changes and paraglacial dynamics: A case study from Héðinsdalsjökull (northern Iceland) |
title_full |
Reversible glacial-periglacial transition in response to climate changes and paraglacial dynamics: A case study from Héðinsdalsjökull (northern Iceland) |
title_fullStr |
Reversible glacial-periglacial transition in response to climate changes and paraglacial dynamics: A case study from Héðinsdalsjökull (northern Iceland) |
title_full_unstemmed |
Reversible glacial-periglacial transition in response to climate changes and paraglacial dynamics: A case study from Héðinsdalsjökull (northern Iceland) |
title_sort |
reversible glacial-periglacial transition in response to climate changes and paraglacial dynamics: a case study from héðinsdalsjökull (northern iceland) |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.inrae.fr/hal-03321974 https://hal.inrae.fr/hal-03321974/document https://hal.inrae.fr/hal-03321974/file/2021_Palacios_geomorph.pdf https://doi.org/10.1016/j.geomorph.2021.107787 |
long_lat |
ENVELOPE(-60.734,-60.734,-63.007,-63.007) |
geographic |
New Rock |
geographic_facet |
New Rock |
genre |
glacier Iceland New Rock |
genre_facet |
glacier Iceland New Rock |
op_source |
ISSN: 0169-555X Geomorphology https://hal.inrae.fr/hal-03321974 Geomorphology, 2021, 388, pp.1-22. ⟨10.1016/j.geomorph.2021.107787⟩ https://www.sciencedirect.com/journal/geomorphology |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.geomorph.2021.107787 hal-03321974 https://hal.inrae.fr/hal-03321974 https://hal.inrae.fr/hal-03321974/document https://hal.inrae.fr/hal-03321974/file/2021_Palacios_geomorph.pdf doi:10.1016/j.geomorph.2021.107787 WOS: 000660407000001 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.geomorph.2021.107787 |
container_title |
Geomorphology |
container_volume |
388 |
container_start_page |
107787 |
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1802644519816003584 |
spelling |
ftcollegfrance:oai:HAL:hal-03321974v1 2024-06-23T07:53:02+00:00 Reversible glacial-periglacial transition in response to climate changes and paraglacial dynamics: A case study from Héðinsdalsjökull (northern Iceland) Palacios, David Rodríguez-Mena, Manuel Fernández-Fernández, José, M Schimmelpfennig, Irene Tanarro, Luis, M Zamorano, José, J Andrés, Nuria Úbeda, Jose Sæmundsson, Þorsteinn Brynjólfsson, Skafti Oliva, Marc Aster, Team Universidad Complutense de Madrid = Complutense University of Madrid Madrid (UCM) Universidade de Lisboa = University of Lisbon = Université de Lisbonne (ULISBOA) Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Universidad Nacional Autónoma de México = National Autonomous University of Mexico (UNAM) University of Iceland Reykjavik Icelandic Institute of Natural History Universitat de Barcelona (UB) R108/20-20 (Santander Bank-UCM Projects) Nils Mobility Program (EEA GRANTS High Mountain Physical Geography Research Group (Universidad Complutense de Madrid) NUNANTAR project (02/SAICT/2017 32002; Fundação para a Ciência e a Tecnologia, Portugal) Ramón y Cajal Program (RYC-2015-17597) Research Group ANTALP (Antarctic, Arctic, Alpine Environments; 2017-SGR-1102) funded by the Government of Catalonia. 2021-09 https://hal.inrae.fr/hal-03321974 https://hal.inrae.fr/hal-03321974/document https://hal.inrae.fr/hal-03321974/file/2021_Palacios_geomorph.pdf https://doi.org/10.1016/j.geomorph.2021.107787 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.geomorph.2021.107787 hal-03321974 https://hal.inrae.fr/hal-03321974 https://hal.inrae.fr/hal-03321974/document https://hal.inrae.fr/hal-03321974/file/2021_Palacios_geomorph.pdf doi:10.1016/j.geomorph.2021.107787 WOS: 000660407000001 http://creativecommons.org/licenses/by-nc-nd/ info:eu-repo/semantics/OpenAccess ISSN: 0169-555X Geomorphology https://hal.inrae.fr/hal-03321974 Geomorphology, 2021, 388, pp.1-22. ⟨10.1016/j.geomorph.2021.107787⟩ https://www.sciencedirect.com/journal/geomorphology Northern Iceland Debris-covered glacier Rock glacier Debris-free glacier Glacial evolution Paraglacial dynamics Climatic variability [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology info:eu-repo/semantics/article Journal articles 2021 ftcollegfrance https://doi.org/10.1016/j.geomorph.2021.107787 2024-06-13T23:37:29Z A.S.T.E.R. TEAM : Georges Aumaître, Didier Bourlès et Karim Keddadouche International audience The objective of this work is to chronologically establish the origin of the different glacial and rock glacier complex landforms deposited by Heoinsdalsjokull glacier (65 degrees 39' N, 18 degrees 55' W), in the Heoinsdalur valley (Skagafjorour fjord, Trollaskagi peninsula, central northern Iceland). Multiple methods were applied: geomorphological analysis and mapping, glacier reconstruction and equilibrium-line altitude calculation, Cosmic-Ray Exposure dating (in situ cosmogenic Cl-36), and lichenometric dating. The results reveal that a debris-free glacier receded around 6.6 +/- 0.6 ka, during the Holocene Thermal Maximum. The retreat of the glacier exposed its headwall and accelerated paraglacial dynamics. As a result, the glacier terminus evolved into a debris-covered glacier and a rock glacier at a slightly higher elevation. The front of this rock glacier stabilized shortly after it formed, although nuclide inheritance is possible, but its sector close the valley head stabilized between 1.5 and 0.6 ka. The lowest part of the debris-covered glacier (between 600 and 820 m altitude) collapsed at ca. 2.4 ka. Since then, periods of glacial advance and retreat have alternated, particularly during the Little Ice Age. The maximum advance during this phase occurred in the 15th to 17th centuries with subsequent re-advances, namely at the beginning of the 19th and 20th centuries. After a significant retreat during the first decades of the 20th century, the glacier advanced in the 1960s to 1990s, and then retreated again, in accordance with the local climatic evolution. The internal ice of both the debris-covered and the rock glacier have survived until the present day, although enhanced subsidence provides evidence of their gradual degradation. A new rock glacier developed from an ice-cored moraine from around 1940-1950 CE. Thus, the Holocene coupling between paraglacial and climatic shifts has resulted in a complex ... Article in Journal/Newspaper glacier Iceland New Rock Collège de France: HAL New Rock ENVELOPE(-60.734,-60.734,-63.007,-63.007) Geomorphology 388 107787 |