Articles | Volume 6, issue 3
https://doi.org/10.5194/gchron-6-465-2024
https://doi.org/10.5194/gchron-6-465-2024
Short communication/technical note
 | 
08 Aug 2024
Short communication/technical note |  | 08 Aug 2024

Technical note: RA138 calcite U–Pb LA-ICP-MS primary reference material

Marcel Guillong, Elias Samankassou, Inigo A. Müller, Dawid Szymanowski, Nathan Looser, Lorenzo Tavazzani, Óscar Merino-Tomé, Juan R. Bahamonde, Yannick Buret, and Maria Ovtcharova

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This preprint is open for discussion and under review for Geochronology (GChron).
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Cited articles

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Burisch, M., Gerdes, A., Walter, B. F., Neumann, U., Fettel, M., and Markl, G.: Methane and the origin of five-element veins: Mineralogy, age, fluid inclusion chemistry and ore forming processes in the Odenwald, SW Germany, Ore Geol. Rev., 81, 42–61, https://doi.org/10.1016/j.oregeorev.2016.10.033, 2017. 
Chaldekas, O., Vaks, A., Haviv, I., Gerdes, A., and Albert, R.: U-Pb speleothem geochronology reveals a major 6 Ma uplift phase along the western margin of Dead Sea Transform, Geol. Soc. Am. Bull., 134, 1571–1584, https://doi.org/10.1130/b36051.1, 2022. 
Chen, X., Tissot, F. L. H., Jansen, M. F., Bekker, A., Liu, C. X., Nie, N. X., Halverson, G. P., Veizer, J., and Dauphas, N.: The uranium isotopic record of shales and carbonates through geologic time, Geochim. Cosmochim. Ac., 300, 164–191, https://doi.org/10.1016/j.gca.2021.01.040, 2021. 
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Short summary
RA138 is a new reference material for U–Pb dating of carbonate samples via laser ablation inductively coupled plasma mass spectrometry. RA138 exhibits variable U–Pb ratios and consistent U content, resulting in a precise isochron with low uncertainty. Isotope dilution thermal ionization mass spectrometry analyses fix a reference age of 321.99 ± 0.65 Ma. This research advances our ability to date carbonate samples accurately, providing insights into geological processes and historical timelines.
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