High-precision dating and correlation of ice, marine and terrestrial sequences spanning Heinrich Event 3 : Testing mechanisms of interhemispheric change using New Zealand ancient kauri (Agathis australis)
Robustly testing hypotheses of geographic synchroneity of abrupt and extreme change during the late Pleistocene (60,000 to 11,650 years ago) requires a level of chronological precision often lacking in ice, marine and terrestrial sequences. Here we report a bidecadally-resolved New Zealand kauri (Ag...
Published in: | Quaternary Science Reviews |
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Online Access: | https://lup.lub.lu.se/record/222e4578-e102-4986-aef7-d35f7ece9f9d https://doi.org/10.1016/j.quascirev.2016.02.005 |
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ftulundlup:oai:lup.lub.lu.se:222e4578-e102-4986-aef7-d35f7ece9f9d 2024-05-19T07:29:15+00:00 High-precision dating and correlation of ice, marine and terrestrial sequences spanning Heinrich Event 3 : Testing mechanisms of interhemispheric change using New Zealand ancient kauri (Agathis australis) Turney, Chris S M Palmer, Jonathan Bronk Ramsey, Christopher Adolphi, Florian Muscheler, Raimund Hughen, Konrad A. Staff, Richard A. Jones, Richard T. Thomas, Zoë A. Fogwill, Christopher J. Hogg, Alan 2016-04-01 https://lup.lub.lu.se/record/222e4578-e102-4986-aef7-d35f7ece9f9d https://doi.org/10.1016/j.quascirev.2016.02.005 eng eng Elsevier https://lup.lub.lu.se/record/222e4578-e102-4986-aef7-d35f7ece9f9d http://dx.doi.org/10.1016/j.quascirev.2016.02.005 scopus:84958984750 wos:000373547100010 Quaternary Science Reviews; 137, pp 126-134 (2016) ISSN: 0277-3791 Abrupt climate change Antarctic Isotope Maximum-4 (AIM4) Atmospheric radiocarbon (C) Bipolar seesaw Extreme events Heinrich-3 (H3) Tree-ring contributiontojournal/article info:eu-repo/semantics/article text 2016 ftulundlup https://doi.org/10.1016/j.quascirev.2016.02.005 2024-04-23T23:34:34Z Robustly testing hypotheses of geographic synchroneity of abrupt and extreme change during the late Pleistocene (60,000 to 11,650 years ago) requires a level of chronological precision often lacking in ice, marine and terrestrial sequences. Here we report a bidecadally-resolved New Zealand kauri (Agathis australis) tree-ring sequence spanning two millennia that preserves a record of atmospheric radiocarbon (14C) during ice-rafted debris event Heinrich Event 3 (HE3) in the North Atlantic and Antarctic Isotope Maximum 4 (AIM4) in the Southern Hemisphere. Using 14C in the marine Cariaco Basin and 10Be preserved in Greenland ice, the kauri 14C sequence allows us to precisely align sequences across this period. We observe no significant difference between atmospheric and marine 14C records during HE3, suggesting no stratification of surface waters and collapse in Atlantic Meridional Overturning Circulation (AMOC). Instead our results support recent evidence for a weakened AMOC across at least two millennia of the glacial period. Our work adds to a growing body of literature confirming that Heinrich events are not the cause of stadial cooling and suggests changes in the AMOC were not the primary driver of antiphase temperature trends between the hemispheres. Decadally-resolved 14C in ancient kauri offers a powerful new (and complementary) approach to polar ice core CH4 alignment for testing hypotheses of abrupt and extreme climate change. Article in Journal/Newspaper Antarc* Antarctic Greenland ice core North Atlantic Lund University Publications (LUP) Quaternary Science Reviews 137 126 134 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Abrupt climate change Antarctic Isotope Maximum-4 (AIM4) Atmospheric radiocarbon (C) Bipolar seesaw Extreme events Heinrich-3 (H3) Tree-ring |
spellingShingle |
Abrupt climate change Antarctic Isotope Maximum-4 (AIM4) Atmospheric radiocarbon (C) Bipolar seesaw Extreme events Heinrich-3 (H3) Tree-ring Turney, Chris S M Palmer, Jonathan Bronk Ramsey, Christopher Adolphi, Florian Muscheler, Raimund Hughen, Konrad A. Staff, Richard A. Jones, Richard T. Thomas, Zoë A. Fogwill, Christopher J. Hogg, Alan High-precision dating and correlation of ice, marine and terrestrial sequences spanning Heinrich Event 3 : Testing mechanisms of interhemispheric change using New Zealand ancient kauri (Agathis australis) |
topic_facet |
Abrupt climate change Antarctic Isotope Maximum-4 (AIM4) Atmospheric radiocarbon (C) Bipolar seesaw Extreme events Heinrich-3 (H3) Tree-ring |
description |
Robustly testing hypotheses of geographic synchroneity of abrupt and extreme change during the late Pleistocene (60,000 to 11,650 years ago) requires a level of chronological precision often lacking in ice, marine and terrestrial sequences. Here we report a bidecadally-resolved New Zealand kauri (Agathis australis) tree-ring sequence spanning two millennia that preserves a record of atmospheric radiocarbon (14C) during ice-rafted debris event Heinrich Event 3 (HE3) in the North Atlantic and Antarctic Isotope Maximum 4 (AIM4) in the Southern Hemisphere. Using 14C in the marine Cariaco Basin and 10Be preserved in Greenland ice, the kauri 14C sequence allows us to precisely align sequences across this period. We observe no significant difference between atmospheric and marine 14C records during HE3, suggesting no stratification of surface waters and collapse in Atlantic Meridional Overturning Circulation (AMOC). Instead our results support recent evidence for a weakened AMOC across at least two millennia of the glacial period. Our work adds to a growing body of literature confirming that Heinrich events are not the cause of stadial cooling and suggests changes in the AMOC were not the primary driver of antiphase temperature trends between the hemispheres. Decadally-resolved 14C in ancient kauri offers a powerful new (and complementary) approach to polar ice core CH4 alignment for testing hypotheses of abrupt and extreme climate change. |
format |
Article in Journal/Newspaper |
author |
Turney, Chris S M Palmer, Jonathan Bronk Ramsey, Christopher Adolphi, Florian Muscheler, Raimund Hughen, Konrad A. Staff, Richard A. Jones, Richard T. Thomas, Zoë A. Fogwill, Christopher J. Hogg, Alan |
author_facet |
Turney, Chris S M Palmer, Jonathan Bronk Ramsey, Christopher Adolphi, Florian Muscheler, Raimund Hughen, Konrad A. Staff, Richard A. Jones, Richard T. Thomas, Zoë A. Fogwill, Christopher J. Hogg, Alan |
author_sort |
Turney, Chris S M |
title |
High-precision dating and correlation of ice, marine and terrestrial sequences spanning Heinrich Event 3 : Testing mechanisms of interhemispheric change using New Zealand ancient kauri (Agathis australis) |
title_short |
High-precision dating and correlation of ice, marine and terrestrial sequences spanning Heinrich Event 3 : Testing mechanisms of interhemispheric change using New Zealand ancient kauri (Agathis australis) |
title_full |
High-precision dating and correlation of ice, marine and terrestrial sequences spanning Heinrich Event 3 : Testing mechanisms of interhemispheric change using New Zealand ancient kauri (Agathis australis) |
title_fullStr |
High-precision dating and correlation of ice, marine and terrestrial sequences spanning Heinrich Event 3 : Testing mechanisms of interhemispheric change using New Zealand ancient kauri (Agathis australis) |
title_full_unstemmed |
High-precision dating and correlation of ice, marine and terrestrial sequences spanning Heinrich Event 3 : Testing mechanisms of interhemispheric change using New Zealand ancient kauri (Agathis australis) |
title_sort |
high-precision dating and correlation of ice, marine and terrestrial sequences spanning heinrich event 3 : testing mechanisms of interhemispheric change using new zealand ancient kauri (agathis australis) |
publisher |
Elsevier |
publishDate |
2016 |
url |
https://lup.lub.lu.se/record/222e4578-e102-4986-aef7-d35f7ece9f9d https://doi.org/10.1016/j.quascirev.2016.02.005 |
genre |
Antarc* Antarctic Greenland ice core North Atlantic |
genre_facet |
Antarc* Antarctic Greenland ice core North Atlantic |
op_source |
Quaternary Science Reviews; 137, pp 126-134 (2016) ISSN: 0277-3791 |
op_relation |
https://lup.lub.lu.se/record/222e4578-e102-4986-aef7-d35f7ece9f9d http://dx.doi.org/10.1016/j.quascirev.2016.02.005 scopus:84958984750 wos:000373547100010 |
op_doi |
https://doi.org/10.1016/j.quascirev.2016.02.005 |
container_title |
Quaternary Science Reviews |
container_volume |
137 |
container_start_page |
126 |
op_container_end_page |
134 |
_version_ |
1799478219165925376 |