North Atlantic abrupt climatic events of the last glacial period recorded in Ukrainian loess deposits
Loess deposits are widely distributed in the Northern Hemisphere, where they have recorded not only the glacial-interglacial cycles, but also millennial-timescale changes resembling those in marine and ice cores. Such abrupt variations are clearly marked in western European series, but have not yet...
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fttriple:oai:gotriple.eu:oai:doaj.org/article:68f0ac59476a491b82005836603bba2e 2023-05-15T16:29:54+02:00 North Atlantic abrupt climatic events of the last glacial period recorded in Ukrainian loess deposits D.-D. Rousseau P. Antoine N. Gerasimenko A. Sima M. Fuchs C. Hatté O. Moine L. Zoeller 2011-03-01 https://doi.org/10.5194/cp-7-221-2011 http://www.clim-past.net/7/221/2011/cp-7-221-2011.pdf https://doaj.org/article/68f0ac59476a491b82005836603bba2e en eng Copernicus Publications doi:10.5194/cp-7-221-2011 1814-9324 1814-9332 http://www.clim-past.net/7/221/2011/cp-7-221-2011.pdf https://doaj.org/article/68f0ac59476a491b82005836603bba2e undefined Climate of the Past, Vol 7, Iss 1, Pp 221-234 (2011) geo info Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2011 fttriple https://doi.org/10.5194/cp-7-221-2011 2023-01-22T19:30:54Z Loess deposits are widely distributed in the Northern Hemisphere, where they have recorded not only the glacial-interglacial cycles, but also millennial-timescale changes resembling those in marine and ice cores. Such abrupt variations are clearly marked in western European series, but have not yet been evidenced in the East of the continent. Here we present results of the high-resolution investigation of a Weichselian Upper Pleniglacial loess sequence (~38–15 ka) from Stayky, Ukraine. The stratigraphy shows an alternation of loess horizons and embryonic soils, similar to sequences from western Europe. Similarities are also found between variations of a grain-size index (ratio between coarse and fine material fractions) in Stayky and in western European profiles. Based on these similarities and in agreement with the luminescence dates, the embryonic soils are associated with the Greenland interstadials (GIS) 7 to 2, and the Vytachiv paleosol at the base of the sequence, with GIS 8. Pollen analysis indicates a wetter climate for these interstadials, allowing the development of arboreal vegetation, than for the stadials, which are marked by loess formation. The grain-size index reaches the highest values for intervals correlated with the Heinrich events 3 and 2. Thus, it appears that the North Atlantic abrupt climate changes have extended their influence and modulated the loess sedimentation at least as far as eastern Europe. This result is supported by recent climate modeling experiments and recommends the Stayky sequence as a reference for further comparisons between profiles along the Eurasian loess belt centered at 50° N. Article in Journal/Newspaper Greenland North Atlantic Unknown Greenland Climate of the Past 7 1 221 234 |
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geo info D.-D. Rousseau P. Antoine N. Gerasimenko A. Sima M. Fuchs C. Hatté O. Moine L. Zoeller North Atlantic abrupt climatic events of the last glacial period recorded in Ukrainian loess deposits |
topic_facet |
geo info |
description |
Loess deposits are widely distributed in the Northern Hemisphere, where they have recorded not only the glacial-interglacial cycles, but also millennial-timescale changes resembling those in marine and ice cores. Such abrupt variations are clearly marked in western European series, but have not yet been evidenced in the East of the continent. Here we present results of the high-resolution investigation of a Weichselian Upper Pleniglacial loess sequence (~38–15 ka) from Stayky, Ukraine. The stratigraphy shows an alternation of loess horizons and embryonic soils, similar to sequences from western Europe. Similarities are also found between variations of a grain-size index (ratio between coarse and fine material fractions) in Stayky and in western European profiles. Based on these similarities and in agreement with the luminescence dates, the embryonic soils are associated with the Greenland interstadials (GIS) 7 to 2, and the Vytachiv paleosol at the base of the sequence, with GIS 8. Pollen analysis indicates a wetter climate for these interstadials, allowing the development of arboreal vegetation, than for the stadials, which are marked by loess formation. The grain-size index reaches the highest values for intervals correlated with the Heinrich events 3 and 2. Thus, it appears that the North Atlantic abrupt climate changes have extended their influence and modulated the loess sedimentation at least as far as eastern Europe. This result is supported by recent climate modeling experiments and recommends the Stayky sequence as a reference for further comparisons between profiles along the Eurasian loess belt centered at 50° N. |
format |
Article in Journal/Newspaper |
author |
D.-D. Rousseau P. Antoine N. Gerasimenko A. Sima M. Fuchs C. Hatté O. Moine L. Zoeller |
author_facet |
D.-D. Rousseau P. Antoine N. Gerasimenko A. Sima M. Fuchs C. Hatté O. Moine L. Zoeller |
author_sort |
D.-D. Rousseau |
title |
North Atlantic abrupt climatic events of the last glacial period recorded in Ukrainian loess deposits |
title_short |
North Atlantic abrupt climatic events of the last glacial period recorded in Ukrainian loess deposits |
title_full |
North Atlantic abrupt climatic events of the last glacial period recorded in Ukrainian loess deposits |
title_fullStr |
North Atlantic abrupt climatic events of the last glacial period recorded in Ukrainian loess deposits |
title_full_unstemmed |
North Atlantic abrupt climatic events of the last glacial period recorded in Ukrainian loess deposits |
title_sort |
north atlantic abrupt climatic events of the last glacial period recorded in ukrainian loess deposits |
publisher |
Copernicus Publications |
publishDate |
2011 |
url |
https://doi.org/10.5194/cp-7-221-2011 http://www.clim-past.net/7/221/2011/cp-7-221-2011.pdf https://doaj.org/article/68f0ac59476a491b82005836603bba2e |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland North Atlantic |
genre_facet |
Greenland North Atlantic |
op_source |
Climate of the Past, Vol 7, Iss 1, Pp 221-234 (2011) |
op_relation |
doi:10.5194/cp-7-221-2011 1814-9324 1814-9332 http://www.clim-past.net/7/221/2011/cp-7-221-2011.pdf https://doaj.org/article/68f0ac59476a491b82005836603bba2e |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/cp-7-221-2011 |
container_title |
Climate of the Past |
container_volume |
7 |
container_issue |
1 |
container_start_page |
221 |
op_container_end_page |
234 |
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