The younger dryas cooling in northeast Germany: summer temperature and environmental changes in the Friedländer Groβe Wiese region
Abstract A lake sediment record from the Friedländer Groβe Wiese in northeast Germany was studied to reconstruct summer temperature changes associated with changes in vegetation development during the Weichselian Lateglacial. The record was analysed for pollen, chironomids, and oxygen and carbon iso...
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crwiley:10.1002/jqs.2547 2024-10-06T13:49:12+00:00 The younger dryas cooling in northeast Germany: summer temperature and environmental changes in the Friedländer Groβe Wiese region van Asch, Nelleke Kloos, Marjan E. Heiri, Oliver de Klerk, Pim Hoek, Wim Z. 2012 http://dx.doi.org/10.1002/jqs.2547 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2547 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2547 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 27, issue 5, page 531-543 ISSN 0267-8179 1099-1417 journal-article 2012 crwiley https://doi.org/10.1002/jqs.2547 2024-09-19T04:19:37Z Abstract A lake sediment record from the Friedländer Groβe Wiese in northeast Germany was studied to reconstruct summer temperature changes associated with changes in vegetation development during the Weichselian Lateglacial. The record was analysed for pollen, chironomids, and oxygen and carbon isotopes of lake marl. The combination of radiocarbon dates, the presence of the Laacher See Tephra and correlation of lithological and palynological changes with other records from the region indicated that the record encompassed the Allerød to the early Holocene. Pollen assemblages reflect development of birch and later pine‐dominated forests during the Allerød, comparable to other sites in the region. Chironomid‐inferred mean July air temperatures (C‐IT) for this period range between ∼14.0 and 14.8°C. A temporary decrease in C‐IT of ∼1°C, a negative shift in the isotope records, and a minor decline of birch may correspond to Greenland Interstadial 1b. Even though the transition to the Younger Dryas appears to be affected by reworking and redeposition processes, a drop in C‐IT to ∼11.1°C is reconstructed for the later part of the Younger Dryas, while it appears that pine locally persisted in the region. Comparison with a nearby pollen record further indicates a local expansion of wetland grasses during this period. At the transition to the Holocene, C‐IT increased to ∼15.7°C, while birch and pine forests re‐expanded. Copyright © 2012 John Wiley & Sons, Ltd. Article in Journal/Newspaper Greenland Wiley Online Library Greenland Journal of Quaternary Science 27 5 531 543 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract A lake sediment record from the Friedländer Groβe Wiese in northeast Germany was studied to reconstruct summer temperature changes associated with changes in vegetation development during the Weichselian Lateglacial. The record was analysed for pollen, chironomids, and oxygen and carbon isotopes of lake marl. The combination of radiocarbon dates, the presence of the Laacher See Tephra and correlation of lithological and palynological changes with other records from the region indicated that the record encompassed the Allerød to the early Holocene. Pollen assemblages reflect development of birch and later pine‐dominated forests during the Allerød, comparable to other sites in the region. Chironomid‐inferred mean July air temperatures (C‐IT) for this period range between ∼14.0 and 14.8°C. A temporary decrease in C‐IT of ∼1°C, a negative shift in the isotope records, and a minor decline of birch may correspond to Greenland Interstadial 1b. Even though the transition to the Younger Dryas appears to be affected by reworking and redeposition processes, a drop in C‐IT to ∼11.1°C is reconstructed for the later part of the Younger Dryas, while it appears that pine locally persisted in the region. Comparison with a nearby pollen record further indicates a local expansion of wetland grasses during this period. At the transition to the Holocene, C‐IT increased to ∼15.7°C, while birch and pine forests re‐expanded. Copyright © 2012 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
van Asch, Nelleke Kloos, Marjan E. Heiri, Oliver de Klerk, Pim Hoek, Wim Z. |
spellingShingle |
van Asch, Nelleke Kloos, Marjan E. Heiri, Oliver de Klerk, Pim Hoek, Wim Z. The younger dryas cooling in northeast Germany: summer temperature and environmental changes in the Friedländer Groβe Wiese region |
author_facet |
van Asch, Nelleke Kloos, Marjan E. Heiri, Oliver de Klerk, Pim Hoek, Wim Z. |
author_sort |
van Asch, Nelleke |
title |
The younger dryas cooling in northeast Germany: summer temperature and environmental changes in the Friedländer Groβe Wiese region |
title_short |
The younger dryas cooling in northeast Germany: summer temperature and environmental changes in the Friedländer Groβe Wiese region |
title_full |
The younger dryas cooling in northeast Germany: summer temperature and environmental changes in the Friedländer Groβe Wiese region |
title_fullStr |
The younger dryas cooling in northeast Germany: summer temperature and environmental changes in the Friedländer Groβe Wiese region |
title_full_unstemmed |
The younger dryas cooling in northeast Germany: summer temperature and environmental changes in the Friedländer Groβe Wiese region |
title_sort |
younger dryas cooling in northeast germany: summer temperature and environmental changes in the friedländer groβe wiese region |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1002/jqs.2547 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2547 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2547 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
Journal of Quaternary Science volume 27, issue 5, page 531-543 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.2547 |
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Journal of Quaternary Science |
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27 |
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5 |
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531 |
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543 |
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1812177267517816832 |