Articles | Volume 17, issue 4
https://doi.org/10.5194/cp-17-1423-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-17-1423-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
02 Jul 2021
Research article |
| 02 Jul 2021
| 02 Jul 2021
Temperate Oligocene surface ocean conditions offshore of Cape Adare, Ross Sea, Antarctica
Department of Earth Sciences, Utrecht University, Utrecht, the
Netherlands
Luis Valero
Department of Earth Sciences, University of Geneva,
Geneva, Switzerland
Dimitris Evangelinos
Department of Marine Geoscience, Instituto Andaluz de Ciencias de la Tierra, Consejo Superior de Investigaciones Cientificas (CSIC)–Universidad de Granada, Armilla, Spain
Carlota Escutia
Department of Marine Geoscience, Instituto Andaluz de Ciencias de la Tierra, Consejo Superior de Investigaciones Cientificas (CSIC)–Universidad de Granada, Armilla, Spain
Bella Duncan
Antarctic Research Centre, Victoria
University of Wellington, Wellington, New Zealand
Robert M. McKay
Antarctic Research Centre, Victoria
University of Wellington, Wellington, New Zealand
Henk Brinkhuis
Department of Earth Sciences, Utrecht University, Utrecht, the
Netherlands
Royal Netherlands
Institute for Sea Research (NIOZ), Texel, the Netherlands
Francesca Sangiorgi
Department of Earth Sciences, Utrecht University, Utrecht, the
Netherlands
Peter K. Bijl
Department of Earth Sciences, Utrecht University, Utrecht, the
Netherlands
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Cited
14 citations as recorded by crossref.
- Climate Changes and Sustainability K. Ghanem
- Strength and variability of the Oligocene Southern Ocean surface temperature gradient F. Hoem et al.
- Eocene to Oligocene vegetation and climate in the Tasmanian Gateway region were controlled by changes in ocean currents and pCO2 M. Amoo et al.
- An expanded database of Southern Hemisphere surface sediment dinoflagellate cyst assemblages and their oceanographic affinities L. Thöle et al.
- Climate variability, heat distribution, and polar amplification in the warm unipolar “icehouse” of the Oligocene D. Jenny et al.
- Stepwise Oligocene–Miocene breakdown of subpolar gyres and strengthening of the Antarctic Circumpolar Current F. Hoem et al.
- On land record of the Oligocene–Miocene transition. Climatic insights from a multiproxy study on a lacustrine system in the Ebro Basin (NE Iberia, SW Europe) C. Arenas et al.
- Absence of a strong, deep-reaching Antarctic Circumpolar Current zonal flow across the Tasmanian gateway during the Oligocene to early Miocene D. Evangelinos et al.
- Climatic and tectonic drivers of late Oligocene Antarctic ice volume B. Duncan et al.
- Late Cenozoic sea-surface-temperature evolution of the South Atlantic Ocean F. Hoem et al.
- Gateway-driven weakening of ocean gyres leads to Southern Ocean cooling I. Sauermilch et al.
- Late Eocene–early Miocene evolution of the southern Australian subtropical front: a marine palynological approach F. Hoem et al.
- Ice sheet–free West Antarctica during peak early Oligocene glaciation J. Klages et al.
- Oligocene deep ocean oxygen isotope variations primarily driven by temperature F. Boscolo-Galazzo et al.
14 citations as recorded by crossref.
- Climate Changes and Sustainability K. Ghanem
- Strength and variability of the Oligocene Southern Ocean surface temperature gradient F. Hoem et al.
- Eocene to Oligocene vegetation and climate in the Tasmanian Gateway region were controlled by changes in ocean currents and pCO2 M. Amoo et al.
- An expanded database of Southern Hemisphere surface sediment dinoflagellate cyst assemblages and their oceanographic affinities L. Thöle et al.
- Climate variability, heat distribution, and polar amplification in the warm unipolar “icehouse” of the Oligocene D. Jenny et al.
- Stepwise Oligocene–Miocene breakdown of subpolar gyres and strengthening of the Antarctic Circumpolar Current F. Hoem et al.
- On land record of the Oligocene–Miocene transition. Climatic insights from a multiproxy study on a lacustrine system in the Ebro Basin (NE Iberia, SW Europe) C. Arenas et al.
- Absence of a strong, deep-reaching Antarctic Circumpolar Current zonal flow across the Tasmanian gateway during the Oligocene to early Miocene D. Evangelinos et al.
- Climatic and tectonic drivers of late Oligocene Antarctic ice volume B. Duncan et al.
- Late Cenozoic sea-surface-temperature evolution of the South Atlantic Ocean F. Hoem et al.
- Gateway-driven weakening of ocean gyres leads to Southern Ocean cooling I. Sauermilch et al.
- Late Eocene–early Miocene evolution of the southern Australian subtropical front: a marine palynological approach F. Hoem et al.
- Ice sheet–free West Antarctica during peak early Oligocene glaciation J. Klages et al.
- Oligocene deep ocean oxygen isotope variations primarily driven by temperature F. Boscolo-Galazzo et al.
Saved (final revised paper)
Latest update: 04 May 2026
Short summary
We present new offshore palaeoceanographic reconstructions for the Oligocene (33.7–24.4 Ma) in the Ross Sea, Antarctica. Our study of dinoflagellate cysts and lipid biomarkers indicates warm-temperate sea surface conditions. We posit that warm surface-ocean conditions near the continental shelf during the Oligocene promoted increased precipitation and heat delivery towards Antarctica that led to dynamic terrestrial ice sheet volumes in the warmer climate state of the Oligocene.
We present new offshore palaeoceanographic reconstructions for the Oligocene (33.7–24.4 Ma) in...
