Breakup of last glacial deep stratification in the South Pacific
Stratification of the deep Southern Ocean during the Last Glacial Maximum is thought to have facilitated carbon storage and subsequent release during the deglaciation as stratification broke down, contributing to atmospheric CO2 rise. Here, we present neodymium isotope evidence from deep to abyssal...
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ftawi:oai:epic.awi.de:46821 2024-09-15T18:32:31+00:00 Breakup of last glacial deep stratification in the South Pacific Basak, Chandranath Froellje, H. Lamy, Frank Gersonde, Rainer Benz, Verena Anderson, R. F. Molina-Kescher, Mario Pahnke, Katharina 2018 https://epic.awi.de/id/eprint/46821/ https://hdl.handle.net/10013/epic.e4f092ea-5865-44f7-a567-214146cc1d6a unknown Basak, C. , Froellje, H. , Lamy, F. orcid:0000-0001-5952-1765 , Gersonde, R. , Benz, V. , Anderson, R. F. , Molina-Kescher, M. and Pahnke, K. (2018) Breakup of last glacial deep stratification in the South Pacific , Science, 359 , pp. 900-904 . doi:10.1126/science.aao2473 <https://doi.org/10.1126/science.aao2473> , hdl:10013/epic.e4f092ea-5865-44f7-a567-214146cc1d6a EPIC3Science, 359, pp. 900-904 Article isiRev 2018 ftawi https://doi.org/10.1126/science.aao2473 2024-06-24T04:19:47Z Stratification of the deep Southern Ocean during the Last Glacial Maximum is thought to have facilitated carbon storage and subsequent release during the deglaciation as stratification broke down, contributing to atmospheric CO2 rise. Here, we present neodymium isotope evidence from deep to abyssal waters in the South Pacific that confirms stratification of the deep-water column during the Last Glacial Maximum.The results indicate a glacial northward expansion of Ross Sea Bottom Water and a Southern Hemisphere climate trigger for the deglacial break-up of deep stratification. It highlights the important role of abyssal waters in sustaining a deep glacial carbon reservoir and Southern Hemisphere climate change as a prerequisite for the destabilization of the water column and hence the deglacial release of sequestered CO2 through upwelling. Article in Journal/Newspaper Ross Sea Southern Ocean Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Science 359 6378 900 904 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Stratification of the deep Southern Ocean during the Last Glacial Maximum is thought to have facilitated carbon storage and subsequent release during the deglaciation as stratification broke down, contributing to atmospheric CO2 rise. Here, we present neodymium isotope evidence from deep to abyssal waters in the South Pacific that confirms stratification of the deep-water column during the Last Glacial Maximum.The results indicate a glacial northward expansion of Ross Sea Bottom Water and a Southern Hemisphere climate trigger for the deglacial break-up of deep stratification. It highlights the important role of abyssal waters in sustaining a deep glacial carbon reservoir and Southern Hemisphere climate change as a prerequisite for the destabilization of the water column and hence the deglacial release of sequestered CO2 through upwelling. |
format |
Article in Journal/Newspaper |
author |
Basak, Chandranath Froellje, H. Lamy, Frank Gersonde, Rainer Benz, Verena Anderson, R. F. Molina-Kescher, Mario Pahnke, Katharina |
spellingShingle |
Basak, Chandranath Froellje, H. Lamy, Frank Gersonde, Rainer Benz, Verena Anderson, R. F. Molina-Kescher, Mario Pahnke, Katharina Breakup of last glacial deep stratification in the South Pacific |
author_facet |
Basak, Chandranath Froellje, H. Lamy, Frank Gersonde, Rainer Benz, Verena Anderson, R. F. Molina-Kescher, Mario Pahnke, Katharina |
author_sort |
Basak, Chandranath |
title |
Breakup of last glacial deep stratification in the South Pacific |
title_short |
Breakup of last glacial deep stratification in the South Pacific |
title_full |
Breakup of last glacial deep stratification in the South Pacific |
title_fullStr |
Breakup of last glacial deep stratification in the South Pacific |
title_full_unstemmed |
Breakup of last glacial deep stratification in the South Pacific |
title_sort |
breakup of last glacial deep stratification in the south pacific |
publishDate |
2018 |
url |
https://epic.awi.de/id/eprint/46821/ https://hdl.handle.net/10013/epic.e4f092ea-5865-44f7-a567-214146cc1d6a |
genre |
Ross Sea Southern Ocean |
genre_facet |
Ross Sea Southern Ocean |
op_source |
EPIC3Science, 359, pp. 900-904 |
op_relation |
Basak, C. , Froellje, H. , Lamy, F. orcid:0000-0001-5952-1765 , Gersonde, R. , Benz, V. , Anderson, R. F. , Molina-Kescher, M. and Pahnke, K. (2018) Breakup of last glacial deep stratification in the South Pacific , Science, 359 , pp. 900-904 . doi:10.1126/science.aao2473 <https://doi.org/10.1126/science.aao2473> , hdl:10013/epic.e4f092ea-5865-44f7-a567-214146cc1d6a |
op_doi |
https://doi.org/10.1126/science.aao2473 |
container_title |
Science |
container_volume |
359 |
container_issue |
6378 |
container_start_page |
900 |
op_container_end_page |
904 |
_version_ |
1810474255649865728 |