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A stable isotope toolbox for water and inorganic carbon cycle studies

Hillaire-Marcel, C and Kim, S-T and Landais, A and Ghosh, P and Assonov, S and Lécuyer, C and Blanchard, M and Meijer, HAJ and Steen-Larsen, HC (2021) A stable isotope toolbox for water and inorganic carbon cycle studies. In: Nature Reviews Earth and Environment, 2 (10). pp. 699-719.

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Official URL: https://doi.org/10.1038/s43017-021-00209-0


Stable isotopes of hydrogen, carbon and oxygen are used to investigate numerous physical and chemical processes in the water and inorganic carbon cycles. Measuring and comparing natural isotopic variations requires reliable primary reference materials and consistent data treatment. However, these reference materials have changed over time, while advances in technology have led to better constrained isotopic compositions of the reference materials. In this Technical Review, we provide an overview of the historical evolution of such materials, and explain their relationships across time and isotopic scales. Recommendations are provided for the measurement and reporting of isotopic compositions against the consensual VPDB and VSMOW scales in light of the newest carbonate and water reference materials distributed by the International Atomic Energy Agency. Stable isotope fractionation factors and their temperature dependence in processes specific to the water cycle (2H, 18O, 17O) and the CO2�water�carbonate system (13C, 18O) are described, including for carbonate clumped isotope thermometry. Propagation of errors is also addressed for a consistent reporting of real uncertainties of isotopic measurements and calculations. Lastly, current gaps in knowledge on the behaviour of stable isotopes in the water cycle and the CO2�water�carbonate system are highlighted for future studies. © 2021, Springer Nature Limited.

Item Type: Journal Article
Publication: Nature Reviews Earth and Environment
Publisher: Springer Nature
Additional Information: The copyright for this article belongs to Springer Nature
Department/Centre: Division of Mechanical Sciences > Centre for Earth Sciences
Date Deposited: 28 Nov 2021 06:57
Last Modified: 28 Nov 2021 06:57
URI: http://eprints.iisc.ac.in/id/eprint/70428

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