Articles | Volume 7, issue 1
https://doi.org/10.5194/gchron-7-83-2025
https://doi.org/10.5194/gchron-7-83-2025
Research article
 | 
19 Mar 2025
Research article |  | 19 Mar 2025

Measuring varve thickness using micro-computed tomography (µCT): a comparison with thin section

Marie-Eugénie Meusseunan Pascale Jamba, Pierre Francus, Antoine Gagnon-Poiré, and Guillaume St-Onge

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Cited articles

Ahmed, O. M. H. and Song, Y.: A Review of Common Beam Hardening Correction Methods for Industrial X-ray Computed Tomography, Sains Malaysiana, 47, 1883–1890, https://doi.org/10.17576/jsm-2018-4708-29, 2018. 
Altman, D. G. and Bland, J. M.: Measurement in Medicine: The Analysis of Method Comparison Studies, J. Roy. Stat. Soc. D, 32, 307–317, https://doi.org/10.2307/2987937, 1983. 
Amann, B., Lamoureux, S. F., and Boreux, M. P.: Winter temperature conditions (1670–2010) reconstructed from varved sediments, western Canadian High Arctic, Quaternary Sci. Rev., 172, 1–14, https://doi.org/10.1016/j.quascirev.2017.07.013, 2017. 
Ay, M. R., Mehranian, A., Maleki, A., Ghadiri, H., Ghafarian, P., and Zaidi, H.: Experimental assessment of the influence of beam hardening filters on image quality and patient dose in volumetric 64-slice X-ray CT scanners, Phys. Med., 29, 249–260, https://doi.org/10.1016/j.ejmp.2012.03.005, 2013. 
Ballo, E. G., Bajard, M., Støren, E., and Bakke, J.: Using microcomputed tomography (µCT) to count varves in lake sediment sequences: Application to Lake Sagtjernet, Eastern Norway, Quat. Geochronol., 75, 101432, https://doi.org/10.1016/j.quageo.2023.101432, 2023. 
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Short summary
This article presents a non-destructive method for studying laminated sediments with X-ray micro-computed tomography (μCT). It aims to study the possibility of using μCT as an analytical tool to analyse varved sediments in the context of paleoclimatic studies. As a result, µCT offers the possibility of doing fast analysis and constitutes a powerful tool to improve the quality of results through the access of a 3D view, allowing for choosing the most representative part of a varved record.
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