Surface-circulation change in the Southern Ocean across the Middle Eocene Climatic Optimum: inferences from dinoflagellate cysts and biomarker paleothermometry

• Main Authors: Cramwinckel, Margot J., Woelders, Lineke, Huurdeman, Emiel P., Peterse, Francien, Gallagher, Stephen J., Pross, Jörg, Burgess, Catherine, Reichart, Gert-Jan, Sluijs, Appy, Bijl, Peter K.
• Format: Text
• Language: English
• Published: 2019
• Subjects: Antarctic; Hampden; New Zealand; Pacific; Southern Ocean; Antarc*; Antarctica
• Online Access: https://doi.org/10.5194/cp-2019-35; https://cp.copernicus.org/preprints/cp-2019-35/

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 T...