Diatom-oxygen isotope record from high-altitude Lake Petit (2200&thinsp;m&thinsp;a.s.l.) in the Mediterranean Alps: shedding light on a climatic pulse at 4.2&thinsp;ka

Cartier, Rosine; Sylvestre, Florence; Paillès, Christine; Sonzogni, Corinne; Couapel, Martine; Alexandre, Anne; Mazur, Jean-Charles; Brisset, Elodie; Miramont, Cécile; Guiter, Frédéric

doi:https://doi.org/10.5194/cp-15-253-2019

Articles | Volume 15, issue 1

https://doi.org/10.5194/cp-15-253-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

The 4.2 ka BP climatic event

https://doi.org/10.5194/cp-15-253-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 1

Research article

|

07 Feb 2019

Research article |

| 07 Feb 2019

Diatom-oxygen isotope record from high-altitude Lake Petit (2200 m a.s.l.) in the Mediterranean Alps: shedding light on a climatic pulse at 4.2 ka

Rosine Cartier, Florence Sylvestre, Christine Paillès, Corinne Sonzogni, Martine Couapel, Anne Alexandre, Jean-Charles Mazur, Elodie Brisset, Cécile Miramont, and Frédéric Guiter

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Final revised paper (published on 07 Feb 2019)
Supplement to the final revised paper
Preprint (discussion started on 03 Sep 2018)

Interactive discussion

Status: closed

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

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RC1: 'Review', Anonymous Referee #1, 27 Sep 2018
- AC1: 'Comments to referee 1', Rosine Cartier, 18 Dec 2018
RC2: 'Review Cartier et al. Diatom-oxygen isotopes L. Petit', Anonymous Referee #2, 10 Oct 2018
- AC2: 'Comments to Referee 2', Rosine Cartier, 18 Dec 2018

Peer-review completion

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

ED: Publish as is (30 Dec 2018) by Giovanni Zanchetta

AR by Rosine Cartier on behalf of the Authors (23 Jan 2019) Author's response Manuscript

Short summary

A major environmental change, 4200 years ago, was recorded in the lacustrine sediments of Lake Petit (Mediterranean Alps). The regime shift was described by a modification in erosion processes in the watershed and aquatic species in the lake. This study, based on the analysis of the lake water balance by using oxygen isotopes in diatoms, revealed that these environmental responses were due to a rapid change in precipitation regime, lasting ca. 500 years.