Covariation of deep Southern Ocean oxygenation and atmospheric CO2 through the last ice age

Samuel L. Jaccard (), Eric D. Galbraith, Alfredo Martínez-García and Robert F. Anderson
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Samuel L. Jaccard: Institute of Geological Sciences, University of Bern
Eric D. Galbraith: McGill University
Alfredo Martínez-García: Geological Institute, ETH Zurich
Robert F. Anderson: Lamont-Doherty Earth Observatory of Columbia University

Nature, 2016, vol. 530, issue 7589, 207-210

Abstract: A reconstruction of changes in ocean oxygenation throughout the last glacial cycle shows that respired carbon was removed from the deep Southern Ocean during deglaciation and Antarctic warm events, consistent with a prominent role of reduced iron fertilization and enhanced ocean ventilation, modifying atmospheric carbon dioxide concentrations over the past 80,000 years.

Date: 2016
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DOI: 10.1038/nature16514

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