Investigating the loess–palaeosol sequence of Bahlingen-Schönenberg (Kaiserstuhl), southwestern Germany, using a multi-methodological approach
<p>Loess–palaeosol sequences (LPSs) are key archives for the reconstruction of Quaternary environmental conditions, but there is a lack of investigated records from the southern Upper Rhine Graben (southwestern Germany). To close this gap, a LPS at Bahlingen-Schönenberg was investigated at hig...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | deu |
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Copernicus Publications
2022-08-01
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| Series: | Eiszeitalter und Gegenwart |
| Online Access: | https://egqsj.copernicus.org/articles/71/145/2022/egqsj-71-145-2022.pdf |
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| author | T. Schulze L. Schwahn A. Fülling C. Zeeden F. Preusser T. Sprafke T. Sprafke |
| author_facet | T. Schulze L. Schwahn A. Fülling C. Zeeden F. Preusser T. Sprafke T. Sprafke |
| author_sort | T. Schulze |
| collection | DOAJ |
| description | <p>Loess–palaeosol sequences (LPSs) are key archives for the
reconstruction of Quaternary environmental conditions, but there is a lack
of investigated records from the southern Upper Rhine Graben (southwestern Germany).
To close this gap, a LPS at Bahlingen-Schönenberg was investigated at
high resolution using a multi-method approach. Infrared stimulated
luminescence screening reveals a major hiatus in the lower part of the LPS
that according to luminescence dating is older than marine isotope stage
(MIS) 4. The section above the hiatus formed by quasi-continuous loess
sedimentation between ca. 34 and 27 ka, interrupted by phases of weak
reductive pedogenesis. The fact that this pedogenesis is much weaker
compared to corresponding horizons in the more northerly part of the Upper
Rhine Graben could be due to regionally drier conditions caused by a
different atmospheric circulation pattern at the time of deposition. Our
results reinforce earlier notions that the major environmental shifts
leading into the Last Glacial Maximum (LGM) of southern Central Europe
significantly predate the transition of MIS 3 to 2 (ca. 29 ka). In
particular, the last massive phase of loess accumulation started several
thousand years prior to the arrival of glaciers in the foreland of the Alps,
which raises questions regarding the source and transport paths of the dust.
It is also noted that no loess dating to the LGM or the time thereafter was
observed due to either a lack of deposition or later erosion.</p> |
| first_indexed | 2024-04-11T21:22:14Z |
| format | Article |
| id | doaj.art-6cb35baebeeb4560a9ce41f60104f8a8 |
| institution | Directory Open Access Journal |
| issn | 0424-7116 2199-9090 |
| language | deu |
| last_indexed | 2024-04-11T21:22:14Z |
| publishDate | 2022-08-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Eiszeitalter und Gegenwart |
| spelling | doaj.art-6cb35baebeeb4560a9ce41f60104f8a82022-12-22T04:02:35ZdeuCopernicus PublicationsEiszeitalter und Gegenwart0424-71162199-90902022-08-017114516210.5194/egqsj-71-145-2022Investigating the loess–palaeosol sequence of Bahlingen-Schönenberg (Kaiserstuhl), southwestern Germany, using a multi-methodological approachT. Schulze0L. Schwahn1A. Fülling2C. Zeeden3F. Preusser4T. Sprafke5T. Sprafke6Institute of Earth and Environmental Sciences, University of Freiburg, Freiburg, GermanyInstitute of Earth and Environmental Sciences, University of Freiburg, Freiburg, GermanyInstitute of Earth and Environmental Sciences, University of Freiburg, Freiburg, GermanyRock Physics and Borehole Geophysics, Leibniz Institute for Applied Geophysics, Hanover, GermanyInstitute of Earth and Environmental Sciences, University of Freiburg, Freiburg, GermanyCenter of Competence for Soils, BFH-HAFL, Zollikofen, SwitzerlandInstitute of Geography, University of Bern, Bern, Switzerland<p>Loess–palaeosol sequences (LPSs) are key archives for the reconstruction of Quaternary environmental conditions, but there is a lack of investigated records from the southern Upper Rhine Graben (southwestern Germany). To close this gap, a LPS at Bahlingen-Schönenberg was investigated at high resolution using a multi-method approach. Infrared stimulated luminescence screening reveals a major hiatus in the lower part of the LPS that according to luminescence dating is older than marine isotope stage (MIS) 4. The section above the hiatus formed by quasi-continuous loess sedimentation between ca. 34 and 27 ka, interrupted by phases of weak reductive pedogenesis. The fact that this pedogenesis is much weaker compared to corresponding horizons in the more northerly part of the Upper Rhine Graben could be due to regionally drier conditions caused by a different atmospheric circulation pattern at the time of deposition. Our results reinforce earlier notions that the major environmental shifts leading into the Last Glacial Maximum (LGM) of southern Central Europe significantly predate the transition of MIS 3 to 2 (ca. 29 ka). In particular, the last massive phase of loess accumulation started several thousand years prior to the arrival of glaciers in the foreland of the Alps, which raises questions regarding the source and transport paths of the dust. It is also noted that no loess dating to the LGM or the time thereafter was observed due to either a lack of deposition or later erosion.</p>https://egqsj.copernicus.org/articles/71/145/2022/egqsj-71-145-2022.pdf |
| spellingShingle | T. Schulze L. Schwahn A. Fülling C. Zeeden F. Preusser T. Sprafke T. Sprafke Investigating the loess–palaeosol sequence of Bahlingen-Schönenberg (Kaiserstuhl), southwestern Germany, using a multi-methodological approach Eiszeitalter und Gegenwart |
| title | Investigating the loess–palaeosol sequence of Bahlingen-Schönenberg (Kaiserstuhl), southwestern Germany, using a multi-methodological approach |
| title_full | Investigating the loess–palaeosol sequence of Bahlingen-Schönenberg (Kaiserstuhl), southwestern Germany, using a multi-methodological approach |
| title_fullStr | Investigating the loess–palaeosol sequence of Bahlingen-Schönenberg (Kaiserstuhl), southwestern Germany, using a multi-methodological approach |
| title_full_unstemmed | Investigating the loess–palaeosol sequence of Bahlingen-Schönenberg (Kaiserstuhl), southwestern Germany, using a multi-methodological approach |
| title_short | Investigating the loess–palaeosol sequence of Bahlingen-Schönenberg (Kaiserstuhl), southwestern Germany, using a multi-methodological approach |
| title_sort | investigating the loess palaeosol sequence of bahlingen schonenberg kaiserstuhl southwestern germany using a multi methodological approach |
| url | https://egqsj.copernicus.org/articles/71/145/2022/egqsj-71-145-2022.pdf |
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