Geochronology
Geochronology
GChron
Articles | Volume 6, issue 1
Articles | Volume 6, issue 1
https://doi.org/10.5194/gchron-6-21-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gchron-6-21-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 6, issue 1
Research article
 | 
17 Jan 2024
Research article |  | 17 Jan 2024

Calibration methods for laser ablation Rb–Sr geochronology: comparisons and recommendation based on NIST glass and natural reference materials

Stijn Glorie, Sarah E. Gilbert, Martin Hand, and Jarred C. Lloyd

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Cited articles

Balcaen, L., Bolea-Fernandez, E., Resano, M., and Vanhaecke, F.: Inductively coupled plasma – Tandem mass spectrometry (ICP-MS/MS): A powerful and universal tool for the interference-free determination of (ultra)trace elements – A tutorial review, Anal. Chim. Acta, 894, 7–19, https://doi.org/10.1016/j.aca.2015.08.053, 2015. 
Black, L.: SHRIMP U–Pb zircon ages obtained during 2006/07 for NSW Geological Survey projects, Geological Survey of New South Wales, Report GS2007/2298, 2007. 
Burtt, A. C. and Abbot, P. J.: The Taratap Granodioritite, South-East South Australia, MESA Journal, 10, 35–39, 1998. 
Flood, R. H. and Shaw, S. E.: A cordierite-bearing granite suite from the New England Batholith, N.S.W., Australia, Contrib. Mineral. Petr., 52, 157–164, https://doi.org/10.1007/BF00457291, 1975. 
Flood, R. H. and Shaw, S. E.: Two “S-type” granite suites with low initial 87Sr/86Sr ratios from the New England Batholith, Australia, Contrib. Mineral. Petr., 61, 163–173, https://doi.org/10.1007/BF00374365, 1977. 
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Radiometric dating methods, involving laser ablation as the sample introduction, require robust calibrations to reference materials with similar ablation properties to the analysed samples. In the case of the rubidium–strontium dating method, calibrations are often conducted to nano powder with different ablation characteristics than the crystalline minerals. We describe the limitations of this approach and recommend an alternative calibration method involving natural minerals.
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