The University of Southampton
×
Filter your search:
University of Southampton Institutional Repository

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)

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)
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 (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.
Abrupt climate change, Antarctic Isotope Maximum-4 (AIM4), Atmospheric radiocarbon (C), Bipolar seesaw, Extreme events, Heinrich-3 (H3), Tree-ring
0277-3791
126-134
Turney, Chris S.M.
5149b57c-77c2-4375-97a2-a4f00aa74d97
Palmer, Jonathan
6b327a39-f234-4cdc-ae73-0c48340f05b3
Bronk Ramsey, Christopher
58d46d3d-0731-46e9-b17b-a1552645d666
Adolphi, Florian
889d7d1e-2a35-4022-9e9b-051894eaedfb
Muscheler, Raimund
777123d1-d4d2-4889-8346-6e4df2fabdf8
Hughen, Konrad A.
f7b3b803-edd7-46b4-bc7a-0bf2bf380f62
Staff, Richard A.
d86a5639-c8ae-49f7-ba7c-3c6e014c27d0
Jones, Richard T.
f8b5db51-10c7-4b4e-81e3-e5c3833eb2ce
Thomas, Zoë A.
4b512d3a-3478-4270-9fdd-61256aa640d3
Fogwill, Christopher J.
3bad6ae9-5a6d-467e-b523-9d5ed0147455
Hogg, Alan
11978083-6632-42e2-ac46-4e0f9cd709c9
et al.
Turney, Chris S.M.
5149b57c-77c2-4375-97a2-a4f00aa74d97
Palmer, Jonathan
6b327a39-f234-4cdc-ae73-0c48340f05b3
Bronk Ramsey, Christopher
58d46d3d-0731-46e9-b17b-a1552645d666
Adolphi, Florian
889d7d1e-2a35-4022-9e9b-051894eaedfb
Muscheler, Raimund
777123d1-d4d2-4889-8346-6e4df2fabdf8
Hughen, Konrad A.
f7b3b803-edd7-46b4-bc7a-0bf2bf380f62
Staff, Richard A.
d86a5639-c8ae-49f7-ba7c-3c6e014c27d0
Jones, Richard T.
f8b5db51-10c7-4b4e-81e3-e5c3833eb2ce
Thomas, Zoë A.
4b512d3a-3478-4270-9fdd-61256aa640d3
Fogwill, Christopher J.
3bad6ae9-5a6d-467e-b523-9d5ed0147455
Hogg, Alan
11978083-6632-42e2-ac46-4e0f9cd709c9

Turney, Chris S.M., Palmer, Jonathan, Bronk Ramsey, Christopher and Thomas, Zoë A. , et al. (2016) 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). Quaternary Science Reviews, 137 (4), 126-134. (doi:10.1016/j.quascirev.2016.02.005).

Record type: Article

Abstract

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.

This record has no associated files available for download.

More information

Accepted/In Press date: 8 February 2016
Published date: 1 April 2016
Additional Information: Funding Information: CSMT thanks the Australian Research Council for the provision of a Laureate Fellowship. This work was part funded by the ARC (FL100100195) and the UK Natural Environment Research Council (NE/H009922/1 and NE/H007865/1). We thank two anonymous reviewers for their kind and thoughtful comments that helped improve this manuscript. Funding Information: CSMT thanks the Australian Research Council for the provision of a Laureate Fellowship. This work was part funded by the ARC ( FL100100195 ) and the UK Natural Environment Research Council ( NE/H009922/1 and NE/H007865/1 ). Publisher Copyright: © 2016 Elsevier Ltd.
Keywords: Abrupt climate change, Antarctic Isotope Maximum-4 (AIM4), Atmospheric radiocarbon (C), Bipolar seesaw, Extreme events, Heinrich-3 (H3), Tree-ring

Identifiers

Local EPrints ID: 476222
URI: http://eprints.soton.ac.uk/id/eprint/476222
DOI: doi:10.1016/j.quascirev.2016.02.005
ISSN: 0277-3791
PURE UUID: bbc40215-bf43-4cb7-bc40-8c9a3c6bfd77
ORCID for Zoë A. Thomas: ORCID iD orcid.org/0000-0002-2323-4366

Catalogue record

Date deposited: 14 Apr 2023 16:47
Last modified: 18 Mar 2024 04:10

Export record

Altmetrics

Contributors

Author: Chris S.M. Turney
Author: Jonathan Palmer
Author: Christopher Bronk Ramsey
Author: Florian Adolphi
Author: Raimund Muscheler
Author: Konrad A. Hughen
Author: Richard A. Staff
Author: Richard T. Jones
Author: Zoë A. Thomas ORCID iD
Author: Christopher J. Fogwill
Author: Alan Hogg
Corporate Author: et al.

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Library staff additional information
Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×