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Biogeosciences An interactive open-access journal of the European Geosciences Union
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Volume 12, issue 11
Biogeosciences, 12, 3289–3299, 2015
https://doi.org/10.5194/bg-12-3289-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Biogeosciences, 12, 3289–3299, 2015
https://doi.org/10.5194/bg-12-3289-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Technical note 03 Jun 2015

Technical note | 03 Jun 2015

Technical Note: A simple method for vaterite precipitation for isotopic studies: implications for bulk and clumped isotope analysis

T. Kluge and C. M. John
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•Vaterite was synthesized from a NaCl-saturated CaCO3 solution at 23-91°C •Vaterite occurred as pure or dominating phase and amounted up to 235 mg per experiment •The precipitation technique allows thermal and isotopic equilibration and enables oxygen and clumped isotope analyses •18α(vaterite-H2O) has the same temperature dependence as calcite •Vaterite δ18O values can hardly be distinguished from calcite (offset +0.0±0.4‰) •Clumped isotope values are indistinguishable from calibration data
•Vaterite was synthesized from a NaCl-saturated CaCO3 solution at 23-91°C •Vaterite...
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