Articles
Retreat of the East Antarctic ice sheet during the last glacial termination -
Andrew Mackintosh, Nicholas Golledge, Eugene Domack, Robert Dunbar, Amy Leventer, Duanne White, David Pollard, Robert DeConto, David Fink, Dan Zwartz, Damian Gore & Caroline Lavoie
doi:10.1038/ngeo1061
The East Antarctic ice sheet retreated at the end of the last glacial period. Terrestrial and marine data suggest that the retreat began 14,000 years ago, indicating that the East Antarctic ice sheet probably did not contribute to meltwater pulse 1a 14,700 years ago.
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Large climate-driven changes of oceanic oxygen concentrations during the last deglaciation -
Samuel L. Jaccard & Eric D. Galbraith
doi:10.1038/ngeo1352
Ocean warming during the last deglaciation decreased the solubility of oxygen. A global compilation of marine sediment records shows that the deglacial trend of deoxygenation was overprinted by changes in ocean circulation and marine productivity.
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Extreme deepening of the Atlantic overturning circulation during deglaciation -
Stephen Barker, Gregor Knorr, Maryline J. Vautravers, Paula Diz & Luke C. Skinner
doi:10.1038/ngeo921
The termination of the last glacial period was punctuated by the collapse and resumption of Atlantic meridional overturning circulation. Sedimentary records from the South Atlantic Ocean indicate that an unusually deep limb of North Atlantic Deep Water formed after the resumption of overturning circulation during the Bølling–Allerød warm event.
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