Reconstruction of the late Quaternary paleoenvironments of the Nussloch loess paleosol sequence, Germany, usingn-alkane biomarkers
Abstract This study contributes to the paleoenvironmental reconstruction of the loess–paleosol sequence of Nussloch, Germany, by using n -alkanes as plant leaf-wax-derived lipid biomarkers. We found that n -alkane patterns and concentrations in the Saalian loess and the last interglacial Eemian pale...
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Cambridge University Press (CUP)
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Online Access: | http://dx.doi.org/10.1016/j.yqres.2012.05.006 http://api.elsevier.com/content/article/PII:S0033589412000531?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589412000531?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400008590 |
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crcambridgeupr:10.1016/j.yqres.2012.05.006 2024-09-15T18:39:49+00:00 Reconstruction of the late Quaternary paleoenvironments of the Nussloch loess paleosol sequence, Germany, usingn-alkane biomarkers Zech, Michael Rass, Simon Buggle, Björn Löscher, Manfred Zöller, Ludwig 2012 http://dx.doi.org/10.1016/j.yqres.2012.05.006 http://api.elsevier.com/content/article/PII:S0033589412000531?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589412000531?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400008590 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 78, issue 2, page 226-235 ISSN 0033-5894 1096-0287 journal-article 2012 crcambridgeupr https://doi.org/10.1016/j.yqres.2012.05.006 2024-06-26T04:03:53Z Abstract This study contributes to the paleoenvironmental reconstruction of the loess–paleosol sequence of Nussloch, Germany, by using n -alkanes as plant leaf-wax-derived lipid biomarkers. We found that n -alkane patterns and concentrations in the Saalian loess and the last interglacial Eemian paleosol of Nussloch point to very strong degradation and prevailing deciduous vegetation. Degradation effects in the overlying paleosols and loess layers are less pronounced and allow for the application of an end-member mixing model to estimate vegetation changes semi-quantitatively. Our findings highlight the potential for the interpretation of degradation-corrected n -alkane ratios. n -Alkane modelling results for loess layers, paleosols and an in-filled paleochannel dated to ~ 60–32 ka suggest that up to ~ 50% of the n -alkanes were derived from deciduous trees or shrubs. This finding is in agreement with the abundant occurrence of wood fragments and indicates a highly variable and dynamic landscape dominated by tundra shrubland. On the other hand, deciduous trees or shrubs did not contribute significantly to the soil organic matter in the late Weichselian loess layers and the intercalated Gelic Gleysols (~ 32–18 ka). Article in Journal/Newspaper Tundra Cambridge University Press Quaternary Research 78 2 226 235 |
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Cambridge University Press |
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English |
description |
Abstract This study contributes to the paleoenvironmental reconstruction of the loess–paleosol sequence of Nussloch, Germany, by using n -alkanes as plant leaf-wax-derived lipid biomarkers. We found that n -alkane patterns and concentrations in the Saalian loess and the last interglacial Eemian paleosol of Nussloch point to very strong degradation and prevailing deciduous vegetation. Degradation effects in the overlying paleosols and loess layers are less pronounced and allow for the application of an end-member mixing model to estimate vegetation changes semi-quantitatively. Our findings highlight the potential for the interpretation of degradation-corrected n -alkane ratios. n -Alkane modelling results for loess layers, paleosols and an in-filled paleochannel dated to ~ 60–32 ka suggest that up to ~ 50% of the n -alkanes were derived from deciduous trees or shrubs. This finding is in agreement with the abundant occurrence of wood fragments and indicates a highly variable and dynamic landscape dominated by tundra shrubland. On the other hand, deciduous trees or shrubs did not contribute significantly to the soil organic matter in the late Weichselian loess layers and the intercalated Gelic Gleysols (~ 32–18 ka). |
format |
Article in Journal/Newspaper |
author |
Zech, Michael Rass, Simon Buggle, Björn Löscher, Manfred Zöller, Ludwig |
spellingShingle |
Zech, Michael Rass, Simon Buggle, Björn Löscher, Manfred Zöller, Ludwig Reconstruction of the late Quaternary paleoenvironments of the Nussloch loess paleosol sequence, Germany, usingn-alkane biomarkers |
author_facet |
Zech, Michael Rass, Simon Buggle, Björn Löscher, Manfred Zöller, Ludwig |
author_sort |
Zech, Michael |
title |
Reconstruction of the late Quaternary paleoenvironments of the Nussloch loess paleosol sequence, Germany, usingn-alkane biomarkers |
title_short |
Reconstruction of the late Quaternary paleoenvironments of the Nussloch loess paleosol sequence, Germany, usingn-alkane biomarkers |
title_full |
Reconstruction of the late Quaternary paleoenvironments of the Nussloch loess paleosol sequence, Germany, usingn-alkane biomarkers |
title_fullStr |
Reconstruction of the late Quaternary paleoenvironments of the Nussloch loess paleosol sequence, Germany, usingn-alkane biomarkers |
title_full_unstemmed |
Reconstruction of the late Quaternary paleoenvironments of the Nussloch loess paleosol sequence, Germany, usingn-alkane biomarkers |
title_sort |
reconstruction of the late quaternary paleoenvironments of the nussloch loess paleosol sequence, germany, usingn-alkane biomarkers |
publisher |
Cambridge University Press (CUP) |
publishDate |
2012 |
url |
http://dx.doi.org/10.1016/j.yqres.2012.05.006 http://api.elsevier.com/content/article/PII:S0033589412000531?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589412000531?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400008590 |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
Quaternary Research volume 78, issue 2, page 226-235 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/j.yqres.2012.05.006 |
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Quaternary Research |
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78 |
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2 |
container_start_page |
226 |
op_container_end_page |
235 |
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1810484154121322496 |