Articles | Volume 17, issue 5
Clim. Past, 17, 2255–2271, 2021
https://doi.org/10.5194/cp-17-2255-2021
Clim. Past, 17, 2255–2271, 2021
https://doi.org/10.5194/cp-17-2255-2021

Research article 26 Oct 2021

Research article | 26 Oct 2021

Southern Ocean bottom-water cooling and ice sheet expansion during the middle Miocene climate transition

Thomas J. Leutert et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (23 Jun 2021) by Yannick Donnadieu
AR by Thomas Jan Leutert on behalf of the Authors (05 Jul 2021)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (12 Jul 2021) by Yannick Donnadieu
RR by Anonymous Referee #1 (31 Aug 2021)
ED: Publish subject to technical corrections (08 Sep 2021) by Yannick Donnadieu
AR by Thomas Jan Leutert on behalf of the Authors (13 Sep 2021)  Author's response    Manuscript
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Short summary
The Miocene climatic optimum associated with high atmospheric CO2 levels (~17–14 Ma) was followed by a period of dramatic climate change. We present a clumped isotope-based bottom-water temperature record from the Southern Ocean covering this key climate transition. Our record reveals warm conditions and a substantial cooling preceding the main ice volume increase, possibly caused by thresholds involved in ice growth and/or regional effects at our study site.