Glacial to deglacial reservoir ages of surface waters in the southern South Pacific
Ocean sediment records document abrupt changes in glacial-to-deglacial circulation and mixing of the ocean, recorded as changes in 14C reservoir ages of surface waters. Here we present 14C-based high-resolution age records of four sediment cores derived by means of 14C plateau tuning. This provides...
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ftarchimer:oai:archimer.ifremer.fr:95942 2023-08-20T04:02:26+02:00 Glacial to deglacial reservoir ages of surface waters in the southern South Pacific Küssner, Kevin Sarnthein, Michael Lamy, Frank Michel, Elisabeth Mollenhauer, Gesine Ronge, Thomas Alexander Siani, Giuseppe Tiedemann, Ralf 2020-08-11 application/pdf https://archimer.ifremer.fr/doc/00847/95942/103889.pdf https://doi.org/10.1002/essoar.10503934.1 https://archimer.ifremer.fr/doc/00847/95942/ eng eng Wiley https://archimer.ifremer.fr/doc/00847/95942/103889.pdf doi:10.1002/essoar.10503934.1 https://archimer.ifremer.fr/doc/00847/95942/ info:eu-repo/semantics/openAccess restricted use ESS Open Archive (Wiley) In Press hydrology oceanography surface waters text Article info:eu-repo/semantics/article 2020 ftarchimer https://doi.org/10.1002/essoar.10503934.1 2023-08-01T22:51:11Z Ocean sediment records document abrupt changes in glacial-to-deglacial circulation and mixing of the ocean, recorded as changes in 14C reservoir ages of surface waters. Here we present 14C-based high-resolution age records of four sediment cores derived by means of 14C plateau tuning. This provides a detailed and precise stratigraphic correlation between the western and eastern South Pacific and paleoclimate records of Antarctic ice cores as well as 14C reservoir ages. The accuracy and precision of plateau tuning are confirmed in two sediment cores off Chile; in one core by independent land-based age control of four tephra layers, in a second core by a suite of glacial sediment varves. During glacial times, high reservoir ages reaching up to ~1500 yr may reflect seasonal sea ice and/or a melt water lid at high latitudes both east of New Zealand and off southern Chile and may be linked to northward advection of upwelled old subsurface waters from the Polar Frontal Zone. Our results support the model of a bipolar seesaw at the onset of rapid deglacial Antarctic warming, moreover, they show that the Antarctic Cold Reversal immediately preceded the onset of the Younger Dryas cold spell. Article in Journal/Newspaper Antarc* Antarctic Sea ice Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Antarctic The Antarctic Pacific New Zealand |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
hydrology oceanography surface waters |
spellingShingle |
hydrology oceanography surface waters Küssner, Kevin Sarnthein, Michael Lamy, Frank Michel, Elisabeth Mollenhauer, Gesine Ronge, Thomas Alexander Siani, Giuseppe Tiedemann, Ralf Glacial to deglacial reservoir ages of surface waters in the southern South Pacific |
topic_facet |
hydrology oceanography surface waters |
description |
Ocean sediment records document abrupt changes in glacial-to-deglacial circulation and mixing of the ocean, recorded as changes in 14C reservoir ages of surface waters. Here we present 14C-based high-resolution age records of four sediment cores derived by means of 14C plateau tuning. This provides a detailed and precise stratigraphic correlation between the western and eastern South Pacific and paleoclimate records of Antarctic ice cores as well as 14C reservoir ages. The accuracy and precision of plateau tuning are confirmed in two sediment cores off Chile; in one core by independent land-based age control of four tephra layers, in a second core by a suite of glacial sediment varves. During glacial times, high reservoir ages reaching up to ~1500 yr may reflect seasonal sea ice and/or a melt water lid at high latitudes both east of New Zealand and off southern Chile and may be linked to northward advection of upwelled old subsurface waters from the Polar Frontal Zone. Our results support the model of a bipolar seesaw at the onset of rapid deglacial Antarctic warming, moreover, they show that the Antarctic Cold Reversal immediately preceded the onset of the Younger Dryas cold spell. |
format |
Article in Journal/Newspaper |
author |
Küssner, Kevin Sarnthein, Michael Lamy, Frank Michel, Elisabeth Mollenhauer, Gesine Ronge, Thomas Alexander Siani, Giuseppe Tiedemann, Ralf |
author_facet |
Küssner, Kevin Sarnthein, Michael Lamy, Frank Michel, Elisabeth Mollenhauer, Gesine Ronge, Thomas Alexander Siani, Giuseppe Tiedemann, Ralf |
author_sort |
Küssner, Kevin |
title |
Glacial to deglacial reservoir ages of surface waters in the southern South Pacific |
title_short |
Glacial to deglacial reservoir ages of surface waters in the southern South Pacific |
title_full |
Glacial to deglacial reservoir ages of surface waters in the southern South Pacific |
title_fullStr |
Glacial to deglacial reservoir ages of surface waters in the southern South Pacific |
title_full_unstemmed |
Glacial to deglacial reservoir ages of surface waters in the southern South Pacific |
title_sort |
glacial to deglacial reservoir ages of surface waters in the southern south pacific |
publisher |
Wiley |
publishDate |
2020 |
url |
https://archimer.ifremer.fr/doc/00847/95942/103889.pdf https://doi.org/10.1002/essoar.10503934.1 https://archimer.ifremer.fr/doc/00847/95942/ |
geographic |
Antarctic The Antarctic Pacific New Zealand |
geographic_facet |
Antarctic The Antarctic Pacific New Zealand |
genre |
Antarc* Antarctic Sea ice |
genre_facet |
Antarc* Antarctic Sea ice |
op_source |
ESS Open Archive (Wiley) In Press |
op_relation |
https://archimer.ifremer.fr/doc/00847/95942/103889.pdf doi:10.1002/essoar.10503934.1 https://archimer.ifremer.fr/doc/00847/95942/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1002/essoar.10503934.1 |
_version_ |
1774712893144563712 |