Environmental changes in Northern Iceland since the Younger Dryas inferred from periglacial slope deposits
The slopes in Northern Iceland show the widespread occurrence of solifluction features, indicative of an active periglacial environment due to annual mean temperatures around 3°C at sea level and seasonal soil frost. In order to reconstruct periods with active and inactive solifluction in the past w...
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crsagepubl:10.1177/0959683611423695 2024-05-12T08:04:01+00:00 Environmental changes in Northern Iceland since the Younger Dryas inferred from periglacial slope deposits Veit, Heinz Marti, Thomas Winiger, Lukas 2011 http://dx.doi.org/10.1177/0959683611423695 http://journals.sagepub.com/doi/pdf/10.1177/0959683611423695 http://journals.sagepub.com/doi/full-xml/10.1177/0959683611423695 en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license The Holocene volume 22, issue 3, page 325-335 ISSN 0959-6836 1477-0911 Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change journal-article 2011 crsagepubl https://doi.org/10.1177/0959683611423695 2024-04-18T08:33:09Z The slopes in Northern Iceland show the widespread occurrence of solifluction features, indicative of an active periglacial environment due to annual mean temperatures around 3°C at sea level and seasonal soil frost. In order to reconstruct periods with active and inactive solifluction in the past we excavated 18 solifluction lobes for analysing the sediment sequences. Dating of the sediments was realised mainly by tephrochronology and 14 C. The oldest solifluction layer could be dated to the Younger Dryas (YD), just after the deglaciation of Northern Iceland. The early to mid Holocene up to the deposition of Hekla 3 Tephra (~3 ka BP) is characterized by the accumulation of loess and tephra layers, which show no signs of secondary remobilisation or erosion, indicating stable slopes during the mid-Holocene climatic optimum (MCO). After the deposition of Hekla 3 Tephra and especially during the ‘Little Ice Age’ (LIA), solifluction reappeared in the profiles as a probable consequence of Neoglacial cooling. The results fit well with other proxies from Iceland (glacier variations, pollen), from North Atlantic marine cores and from Greenland ice records. Article in Journal/Newspaper glacier glacier Greenland Iceland North Atlantic SAGE Publications Greenland The Holocene 22 3 325 335 |
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collection |
SAGE Publications |
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crsagepubl |
language |
English |
topic |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change |
spellingShingle |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change Veit, Heinz Marti, Thomas Winiger, Lukas Environmental changes in Northern Iceland since the Younger Dryas inferred from periglacial slope deposits |
topic_facet |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change |
description |
The slopes in Northern Iceland show the widespread occurrence of solifluction features, indicative of an active periglacial environment due to annual mean temperatures around 3°C at sea level and seasonal soil frost. In order to reconstruct periods with active and inactive solifluction in the past we excavated 18 solifluction lobes for analysing the sediment sequences. Dating of the sediments was realised mainly by tephrochronology and 14 C. The oldest solifluction layer could be dated to the Younger Dryas (YD), just after the deglaciation of Northern Iceland. The early to mid Holocene up to the deposition of Hekla 3 Tephra (~3 ka BP) is characterized by the accumulation of loess and tephra layers, which show no signs of secondary remobilisation or erosion, indicating stable slopes during the mid-Holocene climatic optimum (MCO). After the deposition of Hekla 3 Tephra and especially during the ‘Little Ice Age’ (LIA), solifluction reappeared in the profiles as a probable consequence of Neoglacial cooling. The results fit well with other proxies from Iceland (glacier variations, pollen), from North Atlantic marine cores and from Greenland ice records. |
format |
Article in Journal/Newspaper |
author |
Veit, Heinz Marti, Thomas Winiger, Lukas |
author_facet |
Veit, Heinz Marti, Thomas Winiger, Lukas |
author_sort |
Veit, Heinz |
title |
Environmental changes in Northern Iceland since the Younger Dryas inferred from periglacial slope deposits |
title_short |
Environmental changes in Northern Iceland since the Younger Dryas inferred from periglacial slope deposits |
title_full |
Environmental changes in Northern Iceland since the Younger Dryas inferred from periglacial slope deposits |
title_fullStr |
Environmental changes in Northern Iceland since the Younger Dryas inferred from periglacial slope deposits |
title_full_unstemmed |
Environmental changes in Northern Iceland since the Younger Dryas inferred from periglacial slope deposits |
title_sort |
environmental changes in northern iceland since the younger dryas inferred from periglacial slope deposits |
publisher |
SAGE Publications |
publishDate |
2011 |
url |
http://dx.doi.org/10.1177/0959683611423695 http://journals.sagepub.com/doi/pdf/10.1177/0959683611423695 http://journals.sagepub.com/doi/full-xml/10.1177/0959683611423695 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier glacier Greenland Iceland North Atlantic |
genre_facet |
glacier glacier Greenland Iceland North Atlantic |
op_source |
The Holocene volume 22, issue 3, page 325-335 ISSN 0959-6836 1477-0911 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1177/0959683611423695 |
container_title |
The Holocene |
container_volume |
22 |
container_issue |
3 |
container_start_page |
325 |
op_container_end_page |
335 |
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1798846150773571584 |