Biogeosciences
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Articles | Volume 15, issue 16
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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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.
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