Onset of Antarctic Circumpolar Current 30 million years ago as Tasmanian Gateway aligned with westerlies

Howie D. Scher (), Joanne M. Whittaker, Simon E. Williams, Jennifer C. Latimer, Wendy E. C. Kordesch and Margaret L. Delaney
Additional contact information
Howie D. Scher: University of South Carolina
Joanne M. Whittaker: Institute for Marine and Antarctic Studies, University of Tasmania
Simon E. Williams: EarthByte group, School of Geosciences, The University of Sydney
Jennifer C. Latimer: Indiana State University
Wendy E. C. Kordesch: National Oceanography Centre, University of Southampton
Margaret L. Delaney: University of California Santa Cruz

Nature, 2015, vol. 523, issue 7562, 580-583

Abstract: Neodymium isotopes from fossil fish teeth and tectonic reconstructions show that the deep Tasmanian Gateway opened up about 33 million years ago and that the Antarctic Circumpolar Current arose 30 million years ago, when the gateway probably moved into the latitudes of the strong westerly winds.

Date: 2015
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DOI: 10.1038/nature14598

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