Age determination of sediment core MD07-3088
The Southern Ocean plays a prominent role in the Earth's climate and carbon cycle. Changes in the Southern Ocean circulation may have regulated the release of CO2 to the atmosphere from a deep-ocean reservoir during the last deglaciation. However, the path and exact timing of this deglacial CO2...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.823116 2023-05-15T13:42:11+02:00 Age determination of sediment core MD07-3088 Siani, Giuseppe Michel, Elisabeth De Pol-Holz, Ricardo DeVries, Tim Lamy, Frank Carel, Mélanie Isguder, Gulay Dewilde, Fabien Lourantou, Anna LATITUDE: -46.071667 * LONGITUDE: -75.687167 * DATE/TIME START: 2007-02-11T18:32:00 * DATE/TIME END: 2007-02-11T18:32:00 2013-11-21 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.823116 https://doi.org/10.1594/PANGAEA.823116 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.823116 https://doi.org/10.1594/PANGAEA.823116 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Siani, Giuseppe; Michel, Elisabeth; De Pol-Holz, Ricardo; DeVries, Tim; Lamy, Frank; Carel, Mélanie; Isguder, Gulay; Dewilde, Fabien; Lourantou, Anna (2013): Carbon isotope records reveal precise timing of enhanced Southern Ocean upwelling during the last deglaciation. Nature Communications, 4, 1-9, https://doi.org/10.1038/ncomms3758 Dataset 2013 ftpangaea https://doi.org/10.1594/PANGAEA.823116 https://doi.org/10.1038/ncomms3758 2023-01-20T07:33:11Z The Southern Ocean plays a prominent role in the Earth's climate and carbon cycle. Changes in the Southern Ocean circulation may have regulated the release of CO2 to the atmosphere from a deep-ocean reservoir during the last deglaciation. However, the path and exact timing of this deglacial CO2 release are still under debate. Here we present measurements of deglacial surface reservoir 14C age changes in the eastern Pacific sector of the Southern Ocean, obtained by 14C dating of tephra deposited over the marine and terrestrial regions. These results, along with records of foraminifera benthic-planktic 14C age and d13C difference, provide evidence for three periods of enhanced upwelling in the Southern Ocean during the last deglaciation, supporting the hypothesis that Southern Ocean upwelling contributed to the deglacial rise in atmospheric CO2. These independently dated marine records suggest synchronous changes in the Southern Ocean circulation and Antarctic climate during the last deglaciation. Dataset Antarc* Antarctic Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Southern Ocean Pacific ENVELOPE(-75.687167,-75.687167,-46.071667,-46.071667) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
description |
The Southern Ocean plays a prominent role in the Earth's climate and carbon cycle. Changes in the Southern Ocean circulation may have regulated the release of CO2 to the atmosphere from a deep-ocean reservoir during the last deglaciation. However, the path and exact timing of this deglacial CO2 release are still under debate. Here we present measurements of deglacial surface reservoir 14C age changes in the eastern Pacific sector of the Southern Ocean, obtained by 14C dating of tephra deposited over the marine and terrestrial regions. These results, along with records of foraminifera benthic-planktic 14C age and d13C difference, provide evidence for three periods of enhanced upwelling in the Southern Ocean during the last deglaciation, supporting the hypothesis that Southern Ocean upwelling contributed to the deglacial rise in atmospheric CO2. These independently dated marine records suggest synchronous changes in the Southern Ocean circulation and Antarctic climate during the last deglaciation. |
format |
Dataset |
author |
Siani, Giuseppe Michel, Elisabeth De Pol-Holz, Ricardo DeVries, Tim Lamy, Frank Carel, Mélanie Isguder, Gulay Dewilde, Fabien Lourantou, Anna |
spellingShingle |
Siani, Giuseppe Michel, Elisabeth De Pol-Holz, Ricardo DeVries, Tim Lamy, Frank Carel, Mélanie Isguder, Gulay Dewilde, Fabien Lourantou, Anna Age determination of sediment core MD07-3088 |
author_facet |
Siani, Giuseppe Michel, Elisabeth De Pol-Holz, Ricardo DeVries, Tim Lamy, Frank Carel, Mélanie Isguder, Gulay Dewilde, Fabien Lourantou, Anna |
author_sort |
Siani, Giuseppe |
title |
Age determination of sediment core MD07-3088 |
title_short |
Age determination of sediment core MD07-3088 |
title_full |
Age determination of sediment core MD07-3088 |
title_fullStr |
Age determination of sediment core MD07-3088 |
title_full_unstemmed |
Age determination of sediment core MD07-3088 |
title_sort |
age determination of sediment core md07-3088 |
publisher |
PANGAEA |
publishDate |
2013 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.823116 https://doi.org/10.1594/PANGAEA.823116 |
op_coverage |
LATITUDE: -46.071667 * LONGITUDE: -75.687167 * DATE/TIME START: 2007-02-11T18:32:00 * DATE/TIME END: 2007-02-11T18:32:00 |
long_lat |
ENVELOPE(-75.687167,-75.687167,-46.071667,-46.071667) |
geographic |
Antarctic Southern Ocean Pacific |
geographic_facet |
Antarctic Southern Ocean Pacific |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
Supplement to: Siani, Giuseppe; Michel, Elisabeth; De Pol-Holz, Ricardo; DeVries, Tim; Lamy, Frank; Carel, Mélanie; Isguder, Gulay; Dewilde, Fabien; Lourantou, Anna (2013): Carbon isotope records reveal precise timing of enhanced Southern Ocean upwelling during the last deglaciation. Nature Communications, 4, 1-9, https://doi.org/10.1038/ncomms3758 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.823116 https://doi.org/10.1594/PANGAEA.823116 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.823116 https://doi.org/10.1038/ncomms3758 |
_version_ |
1766164567548755968 |