Articles | Volume 40, issue 2
J. Micropalaeontol., 40, 175–193, 2021
https://doi.org/10.5194/jm-40-175-2021
J. Micropalaeontol., 40, 175–193, 2021
https://doi.org/10.5194/jm-40-175-2021
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 et al.

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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.