Ice-sheet collapse and sea-level rise at the Bølling warming 14,600 years ago

Pierre Deschamps (), Nicolas Durand, Edouard Bard, Bruno Hamelin, Gilbert Camoin, Alexander L. Thomas, Gideon M. Henderson, Jun'ichi Okuno and Yusuke Yokoyama
Additional contact information
Pierre Deschamps: CEREGE, UMR Aix-Marseille Université – CNRS – IRD – College de France, Technopole de l’Arbois, BP 80, 13545 Aix-en-Provence Cedex 4, France
Nicolas Durand: CEREGE, UMR Aix-Marseille Université – CNRS – IRD – College de France, Technopole de l’Arbois, BP 80, 13545 Aix-en-Provence Cedex 4, France
Edouard Bard: CEREGE, UMR Aix-Marseille Université – CNRS – IRD – College de France, Technopole de l’Arbois, BP 80, 13545 Aix-en-Provence Cedex 4, France
Bruno Hamelin: CEREGE, UMR Aix-Marseille Université – CNRS – IRD – College de France, Technopole de l’Arbois, BP 80, 13545 Aix-en-Provence Cedex 4, France
Gilbert Camoin: CEREGE, UMR Aix-Marseille Université – CNRS – IRD – College de France, Technopole de l’Arbois, BP 80, 13545 Aix-en-Provence Cedex 4, France
Alexander L. Thomas: South Parks Road, Oxford OX1 3AN, UK
Gideon M. Henderson: South Parks Road, Oxford OX1 3AN, UK
Jun'ichi Okuno: University of Tokyo, 5-1-5 Kashiwanoha, Kashiwashi, Chiba 277-8564, Japan
Yusuke Yokoyama: University of Tokyo, 5-1-5 Kashiwanoha, Kashiwashi, Chiba 277-8564, Japan

Nature, 2012, vol. 483, issue 7391, 559-564

Abstract: Abstract Past sea-level records provide invaluable information about the response of ice sheets to climate forcing. Some such records suggest that the last deglaciation was punctuated by a dramatic period of sea-level rise, of about 20 metres, in less than 500 years. Controversy about the amplitude and timing of this meltwater pulse (MWP-1A) has, however, led to uncertainty about the source of the melt water and its temporal and causal relationships with the abrupt climate changes of the deglaciation. Here we show that MWP-1A started no earlier than 14,650 years ago and ended before 14,310 years ago, making it coeval with the Bølling warming. Our results, based on corals drilled offshore from Tahiti during Integrated Ocean Drilling Project Expedition 310, reveal that the increase in sea level at Tahiti was between 12 and 22 metres, with a most probable value between 14 and 18 metres, establishing a significant meltwater contribution from the Southern Hemisphere. This implies that the rate of eustatic sea-level rise exceeded 40 millimetres per year during MWP-1A.

Date: 2012
References: Add references at CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
https://www.nature.com/articles/nature10902 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:483:y:2012:i:7391:d:10.1038_nature10902

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/nature10902

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().