Last Glacial Maximum active layer thickness in Western Europe, and the issue of ‘tundra gleys’ in loess sequences
Abstract Late Marine Isotope Stage (MIS) 3 and MIS 2 loess–palaeosol sequences in Western Europe comprise alternating loess layer and 3‐ to 30‐cm‐thick bleached soil horizons with Fe–Mn oxide precipitations, which are usually interpreted as waterlogged active layers and referred to as ‘tundra gleys’...
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crwiley:10.1002/jqs.3434 2024-06-23T07:57:16+00:00 Last Glacial Maximum active layer thickness in Western Europe, and the issue of ‘tundra gleys’ in loess sequences Bertran, Pascal Stadelmaier, Kim H. Ludwig, Patrick AXA Research Fund 2022 http://dx.doi.org/10.1002/jqs.3434 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3434 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jqs.3434 en eng Wiley http://creativecommons.org/licenses/by-nc-nd/4.0/ Journal of Quaternary Science volume 37, issue 7, page 1222-1228 ISSN 0267-8179 1099-1417 journal-article 2022 crwiley https://doi.org/10.1002/jqs.3434 2024-06-11T04:51:48Z Abstract Late Marine Isotope Stage (MIS) 3 and MIS 2 loess–palaeosol sequences in Western Europe comprise alternating loess layer and 3‐ to 30‐cm‐thick bleached soil horizons with Fe–Mn oxide precipitations, which are usually interpreted as waterlogged active layers and referred to as ‘tundra gleys’. Active layer thickness data derived from a regional climate model simulation and the fossils (shells, earthworm granules) found in ‘tundra gleys’ argue against such an assumption. Most of these horizons better correspond to Fe‐depleted, slightly humic topsoil horizons or subsurface eluvial horizons and should be referred to as (incipient) Ag or Eg horizons. They formed during climate ameliorations associated with vegetation (cryptogams, herbs) development, possibly limited by long‐lasting snow cover. Strong mixing usually occurred in these horizons due to the activity of anecic earthworms and frost activity. Article in Journal/Newspaper Tundra Wiley Online Library Journal of Quaternary Science |
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Wiley Online Library |
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English |
description |
Abstract Late Marine Isotope Stage (MIS) 3 and MIS 2 loess–palaeosol sequences in Western Europe comprise alternating loess layer and 3‐ to 30‐cm‐thick bleached soil horizons with Fe–Mn oxide precipitations, which are usually interpreted as waterlogged active layers and referred to as ‘tundra gleys’. Active layer thickness data derived from a regional climate model simulation and the fossils (shells, earthworm granules) found in ‘tundra gleys’ argue against such an assumption. Most of these horizons better correspond to Fe‐depleted, slightly humic topsoil horizons or subsurface eluvial horizons and should be referred to as (incipient) Ag or Eg horizons. They formed during climate ameliorations associated with vegetation (cryptogams, herbs) development, possibly limited by long‐lasting snow cover. Strong mixing usually occurred in these horizons due to the activity of anecic earthworms and frost activity. |
author2 |
AXA Research Fund |
format |
Article in Journal/Newspaper |
author |
Bertran, Pascal Stadelmaier, Kim H. Ludwig, Patrick |
spellingShingle |
Bertran, Pascal Stadelmaier, Kim H. Ludwig, Patrick Last Glacial Maximum active layer thickness in Western Europe, and the issue of ‘tundra gleys’ in loess sequences |
author_facet |
Bertran, Pascal Stadelmaier, Kim H. Ludwig, Patrick |
author_sort |
Bertran, Pascal |
title |
Last Glacial Maximum active layer thickness in Western Europe, and the issue of ‘tundra gleys’ in loess sequences |
title_short |
Last Glacial Maximum active layer thickness in Western Europe, and the issue of ‘tundra gleys’ in loess sequences |
title_full |
Last Glacial Maximum active layer thickness in Western Europe, and the issue of ‘tundra gleys’ in loess sequences |
title_fullStr |
Last Glacial Maximum active layer thickness in Western Europe, and the issue of ‘tundra gleys’ in loess sequences |
title_full_unstemmed |
Last Glacial Maximum active layer thickness in Western Europe, and the issue of ‘tundra gleys’ in loess sequences |
title_sort |
last glacial maximum active layer thickness in western europe, and the issue of ‘tundra gleys’ in loess sequences |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1002/jqs.3434 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3434 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jqs.3434 |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
Journal of Quaternary Science volume 37, issue 7, page 1222-1228 ISSN 0267-8179 1099-1417 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1002/jqs.3434 |
container_title |
Journal of Quaternary Science |
_version_ |
1802650826108305408 |