Surface-circulation change in the southwest Pacific Ocean across the Middle Eocene Climatic Optimum: Inferences from dinoflagellate cysts and biomarker paleothermometry

• Published in: Climate of the Past
• Main Authors: Cramwinckel, Margot J., Woelders, Lineke, Huurdeman, Emiel P., Peterse, Francien, Gallagher, Stephen J., Pross, Jörg, Burgess, Catherine E., Reichart, Gert-jan, Sluijs, Appy, Bijl, Peter K.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2020
• Subjects: Antarctic; Southern Ocean; Pacific; New Zealand; Hampden; Antarc*; Antarctica
• Online Access: https://eprints.soton.ac.uk/445136/; https://eprints.soton.ac.uk/445136/1/cp_16_1667_2020.pdf

Global climate cooled from the early Eocene hothouse (∼52–50 Ma) to the latest Eocene (∼34 Ma). At the same time, the tectonic evolution of the Southern Ocean was characterized by the opening and deepening of circum-Antarctic gateways, which affected both surface- and deep-ocean circulation. The Tas...