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: M. J. Cramwinckel, L. Woelders, E. P. Huurdeman, F. Peterse, S. J. Gallagher, J. Pross, C. E. Burgess, G.-J. Reichart, A. Sluijs, P. K. Bijl
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2020
• Subjects: Environmental pollution; TD172-193.5; Environmental protection; TD169-171.8; Environmental sciences; GE1-350; Antarctic; Hampden; New Zealand; Pacific; Southern Ocean; Antarc*; Antarctica
• Online Access: https://doi.org/10.5194/cp-16-1667-2020; https://doaj.org/article/b1ce9d6ee8fd43ccbd499c7b2eb9a13d

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. Th...