Geochronology
Geochronology
GChron
Articles | Volume 8, issue 1
Articles | Volume 8, issue 1
https://doi.org/10.5194/gchron-8-1-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gchron-8-1-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 8, issue 1
Research article
 | 
07 Jan 2026
Research article |  | 07 Jan 2026

Rapid dose rate estimation for trapped charge dating using pXRF measurements of potassium concentration

Sam Woor, Mitch K. D'Arcy, Olav B. Lian, Maria Schaarschmidt, and Julie A. Durcan

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Short summary
We show that portable X-ray fluorescence can be used to rapidly (ca. 90 s) estimate the rate of background radioactivity in sediment used to calculate burial ages in trapped charge dating studies. This procedure involves inputting a measurement of potassium concentration into a set of simple regression equations, defined by a large radionuclide dataset. Results show good agreement with high-precision methods. Our rapid method will help to quickly generate burial age estimates.
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