Precise dating of Dansgaard–Oeschger climate oscillations in western Europe from stalagmite data
The signature of Dansgaard–Oeschger events—millennial-scale abrupt climate oscillations during the last glacial period—is well established in ice cores and marine records1,2,3. But the effects of such events in continental settings are not as clear, and their absolute chronology is uncertain beyond...
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ftusouthflorida:oai:digitalcommons.usf.edu:kip_articles-5345 2023-08-15T12:41:02+02:00 Precise dating of Dansgaard–Oeschger climate oscillations in western Europe from stalagmite data Genty, D. Blamart, D. Ouahdi, R. 2003-02-20T08:00:00Z https://digitalcommons.usf.edu/kip_articles/4346 https://doi.org/10.1038/nature01391 unknown Digital Commons @ University of South Florida https://digitalcommons.usf.edu/kip_articles/4346 https://doi.org/10.1038/nature01391 KIP Articles Precise Dating Dansgaard–Oeschger Climate Oscillations Western Europe Stalagmite Data text 2003 ftusouthflorida https://doi.org/10.1038/nature01391 2023-07-23T16:38:21Z The signature of Dansgaard–Oeschger events—millennial-scale abrupt climate oscillations during the last glacial period—is well established in ice cores and marine records1,2,3. But the effects of such events in continental settings are not as clear, and their absolute chronology is uncertain beyond the limit of 14C dating and annual layer counting for marine records and ice cores, respectively. Here we present carbon and oxygen isotope records from a stalagmite collected in southwest France which have been precisely dated using 234U/230Th ratios. We find rapid climate oscillations coincident with the established Dansgaard–Oeschger events between 83,000 and 32,000 years ago in both isotope records. The oxygen isotope signature is similar to a record from Soreq cave, Israel4, and deep-sea records5,6, indicating the large spatial scale of the climate oscillations. The signal in the carbon isotopes gives evidence of drastic and rapid vegetation changes in western Europe, an important site in human cultural evolution. We also find evidence for a long phase of extremely cold climate in southwest France between 61.2 ± 0.6 and 67.4 ± 0.9 kyr ago. Text Dansgaard-Oeschger events University of South Florida St. Petersburg: Digital USFSP Nature 421 6925 833 837 |
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Open Polar |
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University of South Florida St. Petersburg: Digital USFSP |
op_collection_id |
ftusouthflorida |
language |
unknown |
topic |
Precise Dating Dansgaard–Oeschger Climate Oscillations Western Europe Stalagmite Data |
spellingShingle |
Precise Dating Dansgaard–Oeschger Climate Oscillations Western Europe Stalagmite Data Genty, D. Blamart, D. Ouahdi, R. Precise dating of Dansgaard–Oeschger climate oscillations in western Europe from stalagmite data |
topic_facet |
Precise Dating Dansgaard–Oeschger Climate Oscillations Western Europe Stalagmite Data |
description |
The signature of Dansgaard–Oeschger events—millennial-scale abrupt climate oscillations during the last glacial period—is well established in ice cores and marine records1,2,3. But the effects of such events in continental settings are not as clear, and their absolute chronology is uncertain beyond the limit of 14C dating and annual layer counting for marine records and ice cores, respectively. Here we present carbon and oxygen isotope records from a stalagmite collected in southwest France which have been precisely dated using 234U/230Th ratios. We find rapid climate oscillations coincident with the established Dansgaard–Oeschger events between 83,000 and 32,000 years ago in both isotope records. The oxygen isotope signature is similar to a record from Soreq cave, Israel4, and deep-sea records5,6, indicating the large spatial scale of the climate oscillations. The signal in the carbon isotopes gives evidence of drastic and rapid vegetation changes in western Europe, an important site in human cultural evolution. We also find evidence for a long phase of extremely cold climate in southwest France between 61.2 ± 0.6 and 67.4 ± 0.9 kyr ago. |
format |
Text |
author |
Genty, D. Blamart, D. Ouahdi, R. |
author_facet |
Genty, D. Blamart, D. Ouahdi, R. |
author_sort |
Genty, D. |
title |
Precise dating of Dansgaard–Oeschger climate oscillations in western Europe from stalagmite data |
title_short |
Precise dating of Dansgaard–Oeschger climate oscillations in western Europe from stalagmite data |
title_full |
Precise dating of Dansgaard–Oeschger climate oscillations in western Europe from stalagmite data |
title_fullStr |
Precise dating of Dansgaard–Oeschger climate oscillations in western Europe from stalagmite data |
title_full_unstemmed |
Precise dating of Dansgaard–Oeschger climate oscillations in western Europe from stalagmite data |
title_sort |
precise dating of dansgaard–oeschger climate oscillations in western europe from stalagmite data |
publisher |
Digital Commons @ University of South Florida |
publishDate |
2003 |
url |
https://digitalcommons.usf.edu/kip_articles/4346 https://doi.org/10.1038/nature01391 |
genre |
Dansgaard-Oeschger events |
genre_facet |
Dansgaard-Oeschger events |
op_source |
KIP Articles |
op_relation |
https://digitalcommons.usf.edu/kip_articles/4346 https://doi.org/10.1038/nature01391 |
op_doi |
https://doi.org/10.1038/nature01391 |
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Nature |
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421 |
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6925 |
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833 |
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837 |
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1774294129946132480 |