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

Author

Listed:
  • 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)

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.

Suggested Citation

  • Howie D. Scher & Joanne M. Whittaker & Simon E. Williams & Jennifer C. Latimer & Wendy E. C. Kordesch & Margaret L. Delaney, 2015. "Onset of Antarctic Circumpolar Current 30 million years ago as Tasmanian Gateway aligned with westerlies," Nature, Nature, vol. 523(7562), pages 580-583, July.
    • Handle: RePEc:nat:nature:v:523:y:2015:i:7562:d:10.1038_nature14598
    DOI: 10.1038/nature14598
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    Cited by:

    1. Isabel Sauermilch & Joanne M. Whittaker & Andreas Klocker & David R. Munday & Katharina Hochmuth & Peter K. Bijl & Joseph H. LaCasce, 2021. "Gateway-driven weakening of ocean gyres leads to Southern Ocean cooling," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    2. Katharina Hochmuth & Joanne M. Whittaker & Isabel Sauermilch & Andreas Klocker & Karsten Gohl & Joseph H. LaCasce, 2022. "Southern Ocean biogenic blooms freezing-in Oligocene colder climates," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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