Astronomical tunings of the Oligocene–Miocene transition from Pacific Ocean Site U1334 and implications for the carbon cycle

Beddow, Helen M.; Liebrand, Diederik; Wilson, Douglas S.; Hilgen, Frits J.; Sluijs, Appy; Wade, Bridget S.; Lourens, Lucas J.

doi:https://doi.org/10.5194/cp-14-255-2018

Articles | Volume 14, issue 3

https://doi.org/10.5194/cp-14-255-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/cp-14-255-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 14, issue 3

Research article

|

05 Mar 2018

Research article |

| 05 Mar 2018

Astronomical tunings of the Oligocene–Miocene transition from Pacific Ocean Site U1334 and implications for the carbon cycle

Helen M. Beddow, Diederik Liebrand, Douglas S. Wilson, Frits J. Hilgen, Appy Sluijs, Bridget S. Wade, and Lucas J. Lourens

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Final revised paper (published on 05 Mar 2018)
Preprint (discussion started on 25 Oct 2017)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Review of the manuscript „A comparison of two astronomical tuning approaches for the Oligocene - Miocene Transition from Pacific Ocean Site U1334 and implications for the carbon cycle“ by Helen Beddow et al.', Christian Zeeden, 05 Nov 2017
- AC1: 'Rebuttal to R1', Diederik Liebrand, 22 Jan 2018
RC2: 'Review: Beddow et al.: “A comparison of two astronomical tuning approaches for the Oligocene-Miocene Transition from Pacific Ocean Site U1334 and implications for the carbon cycle”', Anonymous Referee #2, 26 Nov 2017
- AC2: 'Rebuttal to R2', Diederik Liebrand, 22 Jan 2018

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Publish subject to minor revisions (review by editor) (23 Jan 2018) by Marit-Solveig Seidenkrantz

AR by Diederik Liebrand on behalf of the Authors (24 Jan 2018) Author's response Manuscript

ED: Publish as is (02 Feb 2018) by Marit-Solveig Seidenkrantz

Short summary

We present two astronomy-based timescales for climate records from the Pacific Ocean. These records range from 24 to 22 million years ago, a time period when Earth was warmer than today and the only land ice was located on Antarctica. We use tectonic plate-pair spreading rates to test the two timescales, which shows that the carbonate record yields the best timescale. In turn, this implies that Earth’s climate system and carbon cycle responded slowly to changes in incoming solar radiation.