Glacial Terminations II and I as recorded in NE Iceland
International audience Volcanism in eastern Iceland has controlled the changes in glacier- and river-drainage patterns and the sedimentary budget, particularly during the Middle and Late Pleistocene. The glacial extent in NE Iceland appears to be related to the impact of volcanic activity, not only...
Published in: | Geologos |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2010
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Subjects: | |
Online Access: | https://insu.hal.science/insu-00560237 https://insu.hal.science/insu-00560237/document https://insu.hal.science/insu-00560237/file/10.2478_v10118-010-0005-y.pdf https://doi.org/10.2478/v10118-010-0005-y |
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Institut national des sciences de l'Univers: HAL-INSU |
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English |
topic |
ice-stream patterns palaeolake deglaciation Last Glacial Maximum mid-Eemian cooling Iceland [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
spellingShingle |
ice-stream patterns palaeolake deglaciation Last Glacial Maximum mid-Eemian cooling Iceland [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology van Vliet-Lanoë, Brigitte Gudmundsson, Agust Guillou, Hervé Gueguan, Solène van Loon, Tom de Vleeschouwer, François Glacial Terminations II and I as recorded in NE Iceland |
topic_facet |
ice-stream patterns palaeolake deglaciation Last Glacial Maximum mid-Eemian cooling Iceland [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
description |
International audience Volcanism in eastern Iceland has controlled the changes in glacier- and river-drainage patterns and the sedimentary budget, particularly during the Middle and Late Pleistocene. The glacial extent in NE Iceland appears to be related to the impact of volcanic activity, not only on the ice-stream dynamics, but also on the sedimentary successions. Analysis of the Jökuldalur and Jökulsa á Brù records results in a new interpretation of the changes in ice extent and flow direction for at least the last two glaciations. From MIS 8 onward, the development of the Snæfell volcano apparently forced the ice stream that derived from the Vatnajökull ice cap to take another course; it also affected the offshore sedimentary budgets at the new outlet at Vopnafjördur. The MIS 6 ice sheet was thick and extensive, and associated with an ice-stream diversion to the North. The thick sedimentary complex of palaeolake Halslón was formed close to an outlet of the Vatnajökull, the Brùarjökull, during Termination II and a part of the MIS 5e interglacial. The deposits formed during MIS 5e record two climate optima interrupted by two successive glacial advances correlated with the mid-Eemian cooling. The deposits of the Weichselian deglaciation (Termination I) are much more limited in thickness. During the Last Glacial Maximum and the Late Glacial, glaciers also seem to have been restricted in the Jökulsa á Brù area. Valley glaciers issued from the Brùarjökull re-advanced several times in the Jökuldalur only during at least the Older Dryas, the Younger Dryas and the Preboreal. NE Iceland has undergone considerable deglaciation since the Bølling. In contrast to the conclusions of previous studies, the results presented here are consistent with data on the glaciations in other Nordic regions and can increase the understanding of the mid-Eemian cooling. |
author2 |
Domaines Océaniques (LDO) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Observatoire des Sciences de l'Univers-Institut d'écologie et environnement-Centre National de la Recherche Scientifique (CNRS) Université européenne de Bretagne - European University of Brittany (UEB) JFS Geological Services JFS Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Paléocéanographie (PALEOCEAN) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Geolocial Institute Uniwersytet im. Adama Mickiewicza w Poznaniu = Adam Mickiewicz University in Poznań (UAM) Department of Ecology and Environmental Science Umeå Umeå University program n° 316 IPROCI (IPEV) |
format |
Article in Journal/Newspaper |
author |
van Vliet-Lanoë, Brigitte Gudmundsson, Agust Guillou, Hervé Gueguan, Solène van Loon, Tom de Vleeschouwer, François |
author_facet |
van Vliet-Lanoë, Brigitte Gudmundsson, Agust Guillou, Hervé Gueguan, Solène van Loon, Tom de Vleeschouwer, François |
author_sort |
van Vliet-Lanoë, Brigitte |
title |
Glacial Terminations II and I as recorded in NE Iceland |
title_short |
Glacial Terminations II and I as recorded in NE Iceland |
title_full |
Glacial Terminations II and I as recorded in NE Iceland |
title_fullStr |
Glacial Terminations II and I as recorded in NE Iceland |
title_full_unstemmed |
Glacial Terminations II and I as recorded in NE Iceland |
title_sort |
glacial terminations ii and i as recorded in ne iceland |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://insu.hal.science/insu-00560237 https://insu.hal.science/insu-00560237/document https://insu.hal.science/insu-00560237/file/10.2478_v10118-010-0005-y.pdf https://doi.org/10.2478/v10118-010-0005-y |
genre |
glacier Ice cap Ice Sheet Iceland Vatnajökull |
genre_facet |
glacier Ice cap Ice Sheet Iceland Vatnajökull |
op_source |
Geologos https://insu.hal.science/insu-00560237 Geologos, 2010, 16 (4), pp.201-222. ⟨10.2478/v10118-010-0005-y⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.2478/v10118-010-0005-y insu-00560237 https://insu.hal.science/insu-00560237 https://insu.hal.science/insu-00560237/document https://insu.hal.science/insu-00560237/file/10.2478_v10118-010-0005-y.pdf doi:10.2478/v10118-010-0005-y |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.2478/v10118-010-0005-y |
container_title |
Geologos |
container_volume |
16 |
container_issue |
4 |
_version_ |
1797583188766228480 |
spelling |
ftinsu:oai:HAL:insu-00560237v1 2024-04-28T08:20:03+00:00 Glacial Terminations II and I as recorded in NE Iceland van Vliet-Lanoë, Brigitte Gudmundsson, Agust Guillou, Hervé Gueguan, Solène van Loon, Tom de Vleeschouwer, François Domaines Océaniques (LDO) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Observatoire des Sciences de l'Univers-Institut d'écologie et environnement-Centre National de la Recherche Scientifique (CNRS) Université européenne de Bretagne - European University of Brittany (UEB) JFS Geological Services JFS Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Paléocéanographie (PALEOCEAN) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Geolocial Institute Uniwersytet im. Adama Mickiewicza w Poznaniu = Adam Mickiewicz University in Poznań (UAM) Department of Ecology and Environmental Science Umeå Umeå University program n° 316 IPROCI (IPEV) 2010-12-16 https://insu.hal.science/insu-00560237 https://insu.hal.science/insu-00560237/document https://insu.hal.science/insu-00560237/file/10.2478_v10118-010-0005-y.pdf https://doi.org/10.2478/v10118-010-0005-y en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.2478/v10118-010-0005-y insu-00560237 https://insu.hal.science/insu-00560237 https://insu.hal.science/insu-00560237/document https://insu.hal.science/insu-00560237/file/10.2478_v10118-010-0005-y.pdf doi:10.2478/v10118-010-0005-y http://creativecommons.org/licenses/by-nc-nd/ info:eu-repo/semantics/OpenAccess Geologos https://insu.hal.science/insu-00560237 Geologos, 2010, 16 (4), pp.201-222. ⟨10.2478/v10118-010-0005-y⟩ ice-stream patterns palaeolake deglaciation Last Glacial Maximum mid-Eemian cooling Iceland [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology info:eu-repo/semantics/article Journal articles 2010 ftinsu https://doi.org/10.2478/v10118-010-0005-y 2024-04-05T00:29:02Z International audience Volcanism in eastern Iceland has controlled the changes in glacier- and river-drainage patterns and the sedimentary budget, particularly during the Middle and Late Pleistocene. The glacial extent in NE Iceland appears to be related to the impact of volcanic activity, not only on the ice-stream dynamics, but also on the sedimentary successions. Analysis of the Jökuldalur and Jökulsa á Brù records results in a new interpretation of the changes in ice extent and flow direction for at least the last two glaciations. From MIS 8 onward, the development of the Snæfell volcano apparently forced the ice stream that derived from the Vatnajökull ice cap to take another course; it also affected the offshore sedimentary budgets at the new outlet at Vopnafjördur. The MIS 6 ice sheet was thick and extensive, and associated with an ice-stream diversion to the North. The thick sedimentary complex of palaeolake Halslón was formed close to an outlet of the Vatnajökull, the Brùarjökull, during Termination II and a part of the MIS 5e interglacial. The deposits formed during MIS 5e record two climate optima interrupted by two successive glacial advances correlated with the mid-Eemian cooling. The deposits of the Weichselian deglaciation (Termination I) are much more limited in thickness. During the Last Glacial Maximum and the Late Glacial, glaciers also seem to have been restricted in the Jökulsa á Brù area. Valley glaciers issued from the Brùarjökull re-advanced several times in the Jökuldalur only during at least the Older Dryas, the Younger Dryas and the Preboreal. NE Iceland has undergone considerable deglaciation since the Bølling. In contrast to the conclusions of previous studies, the results presented here are consistent with data on the glaciations in other Nordic regions and can increase the understanding of the mid-Eemian cooling. Article in Journal/Newspaper glacier Ice cap Ice Sheet Iceland Vatnajökull Institut national des sciences de l'Univers: HAL-INSU Geologos 16 4 |