A systematic look at chromium isotopes in modern shells – implications for paleo-environmental reconstructions

Frei, Robert; Paulukat, Cora; Bruggmann, Sylvie; Klaebe, Robert M.

doi:https://doi.org/10.5194/bg-15-4905-2018

Articles | Volume 15, issue 16

https://doi.org/10.5194/bg-15-4905-2018

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

https://doi.org/10.5194/bg-15-4905-2018

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

Articles | Volume 15, issue 16

Research article

|

20 Aug 2018

Research article |

| 20 Aug 2018

A systematic look at chromium isotopes in modern shells – implications for paleo-environmental reconstructions

Robert Frei, Cora Paulukat, Sylvie Bruggmann, and Robert M. Klaebe

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Final revised paper (published on 20 Aug 2018)
Preprint (discussion started on 10 Apr 2018)

Interactive discussion

Status: closed

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

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RC1: 'Accept for publication: Chromium isotopes in modern shells', Anonymous Referee #1, 14 May 2018
- AC1: 'reviewer 1 comments', Robert Frei, 14 May 2018
RC2: 'Comments to Frei et al.', Anonymous Referee #2, 04 Jun 2018
- AC2: 'reply to anonymous referee 2', Robert Frei, 06 Jun 2018

Peer-review completion

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

ED: Reconsider after major revisions (01 Jul 2018) by Aninda Mazumdar

AR by Robert Frei on behalf of the Authors (03 Jul 2018) Author's response Manuscript

ED: Publish as is (06 Aug 2018) by Aninda Mazumdar

AR by Robert Frei on behalf of the Authors (10 Aug 2018) Manuscript

Short summary

The reconstruction of paleo-redox conditions of seawater has the potential to link to climatic changes on land and therefore to contribute to our understanding of past climate change. The redox-sensitive chromium isotope system is applied to marine calcifiers in order to characterize isotope offsets that result from vital processes during calcification processes and which can be eventually used in fossil equivalents to reconstruct past seawater compositions.