Evidence for strong relations between the upper Tagus loess formation (central Iberia) and the marine atmosphere off the Iberian margin during the last glacial period
During glacial times, the North Atlantic region was affected by serious climate changes corresponding to Dansgaard-Oeschger cycles that were linked to dramatic shifts in sea temperature and moisture transfer to the continents. However, considerable efforts are still needed to understand the effects...
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ftpubman:oai:pure.mpg.de:item_3326275 2023-08-27T04:09:47+02:00 Evidence for strong relations between the upper Tagus loess formation (central Iberia) and the marine atmosphere off the Iberian margin during the last glacial period Wolf, D. Kolb, T. Ryborz, K. Heinrich, S. Schäfer, I. Calvo, R. Sanchez, J. Hambach, U. Zech, R. Zöller, L. Faust, D. 2021 application/pdf http://hdl.handle.net/21.11116/0000-0008-B629-D http://hdl.handle.net/21.11116/0000-0008-B62B-B eng eng info:eu-repo/semantics/altIdentifier/doi/10.1017/qua.2020.119 http://hdl.handle.net/21.11116/0000-0008-B629-D http://hdl.handle.net/21.11116/0000-0008-B62B-B info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Quaternary Research info:eu-repo/semantics/article 2021 ftpubman https://doi.org/10.1017/qua.2020.119 2023-08-02T01:14:36Z During glacial times, the North Atlantic region was affected by serious climate changes corresponding to Dansgaard-Oeschger cycles that were linked to dramatic shifts in sea temperature and moisture transfer to the continents. However, considerable efforts are still needed to understand the effects of these shifts on terrestrial environments. In this context, the Iberian Peninsula is particularly interesting because of its close proximity to the North Atlantic, although the Iberian interior lacks paleoenvironmental information so far because suitable archives are rare. Here we provide an accurate impression of the last glacial environmental developments in central Iberia based on comprehensive investigations using the upper Tagus loess record. A multi-proxy approach revealed that phases of loess formation during Marine Isotope Stage (MIS) 2 (and upper MIS 3) were linked to utmost aridity, coldness, and highest wind strengths in line with the most intense Greenland stadials also including Heinrich Events 3–1. Lack of loess deposition during the global last glacial maximum (LGM) suggests milder conditions, which agrees with less-cold sea surface temperatures (SST) off the Iberian margin. Our results demonstrate that geomorphological system behavior in central Iberia is highly sensitive to North Atlantic SST fluctuations, thus enabling us to reconstruct a detailed hydrological model in relation to marine–atmospheric circulation patterns. Article in Journal/Newspaper Greenland North Atlantic Max Planck Society: MPG.PuRe Greenland Quaternary Research 101 84 113 |
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Max Planck Society: MPG.PuRe |
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ftpubman |
language |
English |
description |
During glacial times, the North Atlantic region was affected by serious climate changes corresponding to Dansgaard-Oeschger cycles that were linked to dramatic shifts in sea temperature and moisture transfer to the continents. However, considerable efforts are still needed to understand the effects of these shifts on terrestrial environments. In this context, the Iberian Peninsula is particularly interesting because of its close proximity to the North Atlantic, although the Iberian interior lacks paleoenvironmental information so far because suitable archives are rare. Here we provide an accurate impression of the last glacial environmental developments in central Iberia based on comprehensive investigations using the upper Tagus loess record. A multi-proxy approach revealed that phases of loess formation during Marine Isotope Stage (MIS) 2 (and upper MIS 3) were linked to utmost aridity, coldness, and highest wind strengths in line with the most intense Greenland stadials also including Heinrich Events 3–1. Lack of loess deposition during the global last glacial maximum (LGM) suggests milder conditions, which agrees with less-cold sea surface temperatures (SST) off the Iberian margin. Our results demonstrate that geomorphological system behavior in central Iberia is highly sensitive to North Atlantic SST fluctuations, thus enabling us to reconstruct a detailed hydrological model in relation to marine–atmospheric circulation patterns. |
format |
Article in Journal/Newspaper |
author |
Wolf, D. Kolb, T. Ryborz, K. Heinrich, S. Schäfer, I. Calvo, R. Sanchez, J. Hambach, U. Zech, R. Zöller, L. Faust, D. |
spellingShingle |
Wolf, D. Kolb, T. Ryborz, K. Heinrich, S. Schäfer, I. Calvo, R. Sanchez, J. Hambach, U. Zech, R. Zöller, L. Faust, D. Evidence for strong relations between the upper Tagus loess formation (central Iberia) and the marine atmosphere off the Iberian margin during the last glacial period |
author_facet |
Wolf, D. Kolb, T. Ryborz, K. Heinrich, S. Schäfer, I. Calvo, R. Sanchez, J. Hambach, U. Zech, R. Zöller, L. Faust, D. |
author_sort |
Wolf, D. |
title |
Evidence for strong relations between the upper Tagus loess formation (central Iberia) and the marine atmosphere off the Iberian margin during the last glacial period |
title_short |
Evidence for strong relations between the upper Tagus loess formation (central Iberia) and the marine atmosphere off the Iberian margin during the last glacial period |
title_full |
Evidence for strong relations between the upper Tagus loess formation (central Iberia) and the marine atmosphere off the Iberian margin during the last glacial period |
title_fullStr |
Evidence for strong relations between the upper Tagus loess formation (central Iberia) and the marine atmosphere off the Iberian margin during the last glacial period |
title_full_unstemmed |
Evidence for strong relations between the upper Tagus loess formation (central Iberia) and the marine atmosphere off the Iberian margin during the last glacial period |
title_sort |
evidence for strong relations between the upper tagus loess formation (central iberia) and the marine atmosphere off the iberian margin during the last glacial period |
publishDate |
2021 |
url |
http://hdl.handle.net/21.11116/0000-0008-B629-D http://hdl.handle.net/21.11116/0000-0008-B62B-B |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland North Atlantic |
genre_facet |
Greenland North Atlantic |
op_source |
Quaternary Research |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1017/qua.2020.119 http://hdl.handle.net/21.11116/0000-0008-B629-D http://hdl.handle.net/21.11116/0000-0008-B62B-B |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/qua.2020.119 |
container_title |
Quaternary Research |
container_volume |
101 |
container_start_page |
84 |
op_container_end_page |
113 |
_version_ |
1775351370632658944 |