Million-year-scale alternation of warm–humid and semi-arid periods as a mid-latitude climate mode in the Early Jurassic (late Sinemurian, Laurasian Seaway)

Munier, Thomas; Deconinck, Jean-François; Pellenard, Pierre; Hesselbo, Stephen P.; Riding, James B.; Ullmann, Clemens V.; Bougeault, Cédric; Mercuzot, Mathilde; Santoni, Anne-Lise; Huret, Émilia; Landrein, Philippe

doi:https://doi.org/10.5194/cp-17-1547-2021

Articles | Volume 17, issue 4

https://doi.org/10.5194/cp-17-1547-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/cp-17-1547-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 4

Research article

|

21 Jul 2021

Research article |

| 21 Jul 2021

Million-year-scale alternation of warm–humid and semi-arid periods as a mid-latitude climate mode in the Early Jurassic (late Sinemurian, Laurasian Seaway)

Thomas Munier, Jean-François Deconinck, Pierre Pellenard, Stephen P. Hesselbo, James B. Riding, Clemens V. Ullmann, Cédric Bougeault, Mathilde Mercuzot, Anne-Lise Santoni, Émilia Huret, and Philippe Landrein

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Final revised paper (published on 21 Jul 2021)
Preprint (discussion started on 10 Sep 2020)

Interactive discussion

Status: closed

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

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SC1: 'potentially relevant reference', Matteo Franceschi, 20 Oct 2020
- AC3: 'Reply on SC1', Thomas Munier, 17 Apr 2021
RC1: 'Review', Anonymous Referee #1, 01 Feb 2021
- AC1: 'Reply on RC1', Thomas Munier, 17 Apr 2021
RC2: 'Million-year-scale alternation of warm-humid and semi-arid periods as a mid-latitude climate mode in the Early Jurassic (Late Sinemurian, Laurasian Seaway)', Anonymous Referee #2, 02 Mar 2021
- AC2: 'Reply on RC2', Thomas Munier, 17 Apr 2021

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (16 May 2021) by Yves Godderis

AR by Thomas Munier on behalf of the Authors (19 May 2021) Author's response Author's tracked changes Manuscript

ED: Publish as is (28 May 2021) by Yves Godderis

Short summary

Clay minerals are witnesses of alteration conditions in continental environments. Lacking high-resolution data on clay minerals, this work highlights wet and semi-arid cycles at mid-latitude in the upper Sinemurian. The higher proportion of kaolinite in the upper part of the obtusum zone and in the oxynotum zone indicates an increase in hydrolysis conditions in a warmer period confirmed by carbon isotopes.