Nature Communications (Mar 2016)

Oxygen depletion recorded in upper waters of the glacial Southern Ocean

  • Zunli Lu,
  • Babette A. A. Hoogakker,
  • Claus-Dieter Hillenbrand,
  • Xiaoli Zhou,
  • Ellen Thomas,
  • Kristina M. Gutchess,
  • Wanyi Lu,
  • Luke Jones,
  • Rosalind E. M. Rickaby

DOI
https://doi.org/10.1038/ncomms11146
Journal volume & issue
Vol. 7, no. 1
pp. 1 – 9

Abstract

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Oxygen depletion in the ocean interior may be closely linked to atmospheric CO2level, yet robust proxies are scarce. Here, using foraminiferal I/Ca as a proxy for oxygenation changes, the authors show that oxygen depletion in the upper waters of the high latitude Southern Ocean occurred during glacials.