Late Eocene–early Miocene evolution of the southern Australian subtropical front: a marine palynological approach

Hoem, Frida S.; Sauermilch, Isabel; Hou, Suning; Brinkhuis, Henk; Sangiorgi, Francesca; Bijl, Peter K.

doi:https://doi.org/10.5194/jm-40-175-2021

Articles | Volume 40, issue 2

https://doi.org/10.5194/jm-40-175-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/jm-40-175-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 40, issue 2

Research article

|

29 Oct 2021

Research article |

| 29 Oct 2021

Late Eocene–early Miocene evolution of the southern Australian subtropical front: a marine palynological approach

Frida S. Hoem, Isabel Sauermilch, Suning Hou, Henk Brinkhuis, Francesca Sangiorgi, and Peter K. Bijl

Supplement

https://doi.org/10.5194/jm-40-175-2021-supplement

Data sets

Late Eocene–early Miocene evolution of the southern Australian Subtropical Front: a marine palynological approach F. S. Hoem, I. Sauermilch, S. Hou, H. Brinkhuis, F. Sangiorgi, and P. K. Bijl https://doi.org/10.5281/zenodo.5529715

Short summary

We use marine microfossil (dinocyst) assemblage data as well as seismic and tectonic investigations to reconstruct the oceanographic history south of Australia 37–20 Ma as the Tasmanian Gateway widens and deepens. Our results show stable conditions with typically warmer dinocysts south of Australia, which contrasts with the colder dinocysts closer to Antarctica, indicating the establishment of modern oceanographic conditions with a strong Southern Ocean temperature gradient and frontal systems.