Limited exchange between the deep Pacific and Atlantic oceans during the warm mid-Pliocene and Marine  Isotope Stage M2 “glaciation”

Braaten, Anna Hauge; Jakob, Kim A.; Ho, Sze Ling; Friedrich, Oliver; Galaasen, Eirik Vinje; De Schepper, Stijn; Wilson, Paul A.; Meckler, Anna Nele

doi:https://doi.org/10.5194/cp-19-2109-2023

Articles | Volume 19, issue 11

https://doi.org/10.5194/cp-19-2109-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/cp-19-2109-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 11

Research article

|

01 Nov 2023

Research article |

| 01 Nov 2023

Limited exchange between the deep Pacific and Atlantic oceans during the warm mid-Pliocene and Marine Isotope Stage M2 “glaciation”

Anna Hauge Braaten, Kim A. Jakob, Sze Ling Ho, Oliver Friedrich, Eirik Vinje Galaasen, Stijn De Schepper, Paul A. Wilson, and Anna Nele Meckler

Supplement

https://doi.org/10.5194/cp-19-2109-2023-supplement

Data sets

Mid-Pliocene Mg/Ca and clumped isotope bottom water temperatures from ODP Site 138-849 and IODP Site 303-U1308 Anna Hauge Braaten, Kim A. Jakob, Sze Ling Ho, Oliver Friedrich, Eirik Vinje Galaasen, Stijn De Schepper, Paul A. Wilson, and Anna Nele Meckler https://doi.org/10.1594/PANGAEA.960832

Short summary

In the context of understanding current global warming, the middle Pliocene (3.3–3.0 million years ago) is an important interval in Earth's history because atmospheric carbon dioxide concentrations were similar to levels today. We have reconstructed deep-sea temperatures at two different locations for this period, and find that a very different mode of ocean circulation or mixing existed, with important implications for how heat was transported in the deep ocean.