Southern Ocean warming and Wilkes Land ice sheet retreat during the mid-Miocene
Observations and model experiments highlight the importance of ocean heat in forcing ice sheet retreat during the present and geological past, but past ocean temperature data are virtually missing in ice sheet proximal locations. Here we document paleoceanographic conditions and the (in)stability of...
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Online Access: | http://hdl.handle.net/10261/214227 https://doi.org/10.1038/s41467-017-02609-7 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/100000001 https://doi.org/10.13039/501100001659 https://doi.org/10.13039/501100003329 |
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ftcsic:oai:digital.csic.es:10261/214227 2024-02-11T09:57:24+01:00 Southern Ocean warming and Wilkes Land ice sheet retreat during the mid-Miocene Sangiorgi, Francesca Bijl, Peter K. Passchier, Sandra Schouten, Stefan McKay, Robert M. Cody, Rosemary D. Pross, Jörg van de Flierdt, Tina Bohaty, Steven M. Levy, Richard Williams, Trevor G. Escutia, Carlota Brinkhuis, Henk International Ocean Discovery Program National Science Foundation (US) German Research Foundation Ministerio de Economía y Competitividad (España) European Commission 2018-01-22 http://hdl.handle.net/10261/214227 https://doi.org/10.1038/s41467-017-02609-7 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/100000001 https://doi.org/10.13039/501100001659 https://doi.org/10.13039/501100003329 unknown Nature Publishing Group #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2014-60451-C2-1-P Publisher's version http://dx.doi.org/10.1038/s41467-017-02609-7 Sí doi:10.1038/s41467-017-02609-7 issn: 2041-1723 Nature Communications 9: 317 (2018) http://hdl.handle.net/10261/214227 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/100000001 http://dx.doi.org/10.13039/501100001659 http://dx.doi.org/10.13039/501100003329 29358604 open artículo http://purl.org/coar/resource_type/c_6501 2018 ftcsic https://doi.org/10.1038/s41467-017-02609-710.13039/50110000078010.13039/10000000110.13039/50110000165910.13039/501100003329 2024-01-16T10:55:15Z Observations and model experiments highlight the importance of ocean heat in forcing ice sheet retreat during the present and geological past, but past ocean temperature data are virtually missing in ice sheet proximal locations. Here we document paleoceanographic conditions and the (in)stability of the Wilkes Land subglacial basin (East Antarctica) during the mid-Miocene (~17-13.4 million years ago) by studying sediment cores from offshore Adélie Coast. Inland retreat of the ice sheet, temperate vegetation, and warm oligotrophic waters characterise the mid-Miocene Climatic Optimum (MCO; 17-14.8 Ma). After the MCO, expansion of a marine-based ice sheet occurs, but remains sensitive to melting upon episodic warm water incursions. Our results suggest that the mid-Miocene latitudinal temperature gradient across the Southern Ocean never resembled that of the present day. We demonstrate that a strong coupling of oceanic climate and Antarctic continental conditions existed and that the East Antarctic subglacial basins were highly sensitive to ocean warming. This research used samples and data from the Integrated Ocean Drilling Program (now International Ocean Discovery Program; IODP). F.S. and H.B. thank NWO (Netherlands Organisation for Scientific Research) for funding research grant NNPP 866.10.110. P.K.B. was supported through NWO-VENI project number 863.13.002. F.S. thanks the ANDRILL SMS co-chiefs Fabio Florindo and David Harwood. S.P. was supported through the U.S. Science Support Program and the National Science Foundation (OCE 1060080). U.S. acknowledges funding received from the Natural Environment Research Council (NERC Grant NE/H000984/1). R.M. acknowledges support through the Rutherford Discovery Fellowship (RDF-13- VUW-003). The work of S.S. was carried out under the program of the Netherlands Earth System Science Centre (NESSC), which is supported financially by the Ministry of Education, Culture and Science (OCW). J.P. acknowledges support through the IODP priority program of the German Research ... Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Ice Sheet Southern Ocean Wilkes Land Digital.CSIC (Spanish National Research Council) Adélie Coast ENVELOPE(139.000,139.000,-60.000,-60.000) Antarctic East Antarctica Harwood ENVELOPE(165.817,165.817,-70.733,-70.733) Southern Ocean Wilkes Land ENVELOPE(120.000,120.000,-69.000,-69.000) Nature Communications 9 1 |
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Digital.CSIC (Spanish National Research Council) |
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Observations and model experiments highlight the importance of ocean heat in forcing ice sheet retreat during the present and geological past, but past ocean temperature data are virtually missing in ice sheet proximal locations. Here we document paleoceanographic conditions and the (in)stability of the Wilkes Land subglacial basin (East Antarctica) during the mid-Miocene (~17-13.4 million years ago) by studying sediment cores from offshore Adélie Coast. Inland retreat of the ice sheet, temperate vegetation, and warm oligotrophic waters characterise the mid-Miocene Climatic Optimum (MCO; 17-14.8 Ma). After the MCO, expansion of a marine-based ice sheet occurs, but remains sensitive to melting upon episodic warm water incursions. Our results suggest that the mid-Miocene latitudinal temperature gradient across the Southern Ocean never resembled that of the present day. We demonstrate that a strong coupling of oceanic climate and Antarctic continental conditions existed and that the East Antarctic subglacial basins were highly sensitive to ocean warming. This research used samples and data from the Integrated Ocean Drilling Program (now International Ocean Discovery Program; IODP). F.S. and H.B. thank NWO (Netherlands Organisation for Scientific Research) for funding research grant NNPP 866.10.110. P.K.B. was supported through NWO-VENI project number 863.13.002. F.S. thanks the ANDRILL SMS co-chiefs Fabio Florindo and David Harwood. S.P. was supported through the U.S. Science Support Program and the National Science Foundation (OCE 1060080). U.S. acknowledges funding received from the Natural Environment Research Council (NERC Grant NE/H000984/1). R.M. acknowledges support through the Rutherford Discovery Fellowship (RDF-13- VUW-003). The work of S.S. was carried out under the program of the Netherlands Earth System Science Centre (NESSC), which is supported financially by the Ministry of Education, Culture and Science (OCW). J.P. acknowledges support through the IODP priority program of the German Research ... |
author2 |
International Ocean Discovery Program National Science Foundation (US) German Research Foundation Ministerio de Economía y Competitividad (España) European Commission |
format |
Article in Journal/Newspaper |
author |
Sangiorgi, Francesca Bijl, Peter K. Passchier, Sandra Schouten, Stefan McKay, Robert M. Cody, Rosemary D. Pross, Jörg van de Flierdt, Tina Bohaty, Steven M. Levy, Richard Williams, Trevor G. Escutia, Carlota Brinkhuis, Henk |
spellingShingle |
Sangiorgi, Francesca Bijl, Peter K. Passchier, Sandra Schouten, Stefan McKay, Robert M. Cody, Rosemary D. Pross, Jörg van de Flierdt, Tina Bohaty, Steven M. Levy, Richard Williams, Trevor G. Escutia, Carlota Brinkhuis, Henk Southern Ocean warming and Wilkes Land ice sheet retreat during the mid-Miocene |
author_facet |
Sangiorgi, Francesca Bijl, Peter K. Passchier, Sandra Schouten, Stefan McKay, Robert M. Cody, Rosemary D. Pross, Jörg van de Flierdt, Tina Bohaty, Steven M. Levy, Richard Williams, Trevor G. Escutia, Carlota Brinkhuis, Henk |
author_sort |
Sangiorgi, Francesca |
title |
Southern Ocean warming and Wilkes Land ice sheet retreat during the mid-Miocene |
title_short |
Southern Ocean warming and Wilkes Land ice sheet retreat during the mid-Miocene |
title_full |
Southern Ocean warming and Wilkes Land ice sheet retreat during the mid-Miocene |
title_fullStr |
Southern Ocean warming and Wilkes Land ice sheet retreat during the mid-Miocene |
title_full_unstemmed |
Southern Ocean warming and Wilkes Land ice sheet retreat during the mid-Miocene |
title_sort |
southern ocean warming and wilkes land ice sheet retreat during the mid-miocene |
publisher |
Nature Publishing Group |
publishDate |
2018 |
url |
http://hdl.handle.net/10261/214227 https://doi.org/10.1038/s41467-017-02609-7 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/100000001 https://doi.org/10.13039/501100001659 https://doi.org/10.13039/501100003329 |
long_lat |
ENVELOPE(139.000,139.000,-60.000,-60.000) ENVELOPE(165.817,165.817,-70.733,-70.733) ENVELOPE(120.000,120.000,-69.000,-69.000) |
geographic |
Adélie Coast Antarctic East Antarctica Harwood Southern Ocean Wilkes Land |
geographic_facet |
Adélie Coast Antarctic East Antarctica Harwood Southern Ocean Wilkes Land |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet Southern Ocean Wilkes Land |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet Southern Ocean Wilkes Land |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2014-60451-C2-1-P Publisher's version http://dx.doi.org/10.1038/s41467-017-02609-7 Sí doi:10.1038/s41467-017-02609-7 issn: 2041-1723 Nature Communications 9: 317 (2018) http://hdl.handle.net/10261/214227 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/100000001 http://dx.doi.org/10.13039/501100001659 http://dx.doi.org/10.13039/501100003329 29358604 |
op_rights |
open |
op_doi |
https://doi.org/10.1038/s41467-017-02609-710.13039/50110000078010.13039/10000000110.13039/50110000165910.13039/501100003329 |
container_title |
Nature Communications |
container_volume |
9 |
container_issue |
1 |
_version_ |
1790609693892149248 |