Articles | Volume 14, issue 1
Biogeosciences, 14, 89–97, 2017
https://doi.org/10.5194/bg-14-89-2017
Biogeosciences, 14, 89–97, 2017
https://doi.org/10.5194/bg-14-89-2017

Research article 09 Jan 2017

Research article | 09 Jan 2017

The effect of shell secretion rate on Mg / Ca and Sr / Ca ratios in biogenic calcite as observed in a belemnite rostrum

Clemens Vinzenz Ullmann and Philip A. E. Pogge von Strandmann

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Chemical and isotopic architecture of the belemnite rostrum C. V. Ullmann, R. Frei, C. Korte, and S. P. Hesselbo https://doi.org/10.1016/j.gca.2015.03.034

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Short summary
This study documents how much control growth rate has on the chemical composition of fossil shell material. Using a series of chemical analyses of the fossil hard part of a belemnite, an extinct marine predator, a clear connection between the rate of calcite formation and its magnesium and strontium contents was found. These findings provide further insight into biomineralization processes and help better understand chemical signatures of fossils as proxies for palaeoenvironmental conditions.
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