Geochronology
Geochronology
GChron
Articles | Volume 6, issue 2
Articles | Volume 6, issue 2
https://doi.org/10.5194/gchron-6-199-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gchron-6-199-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 6, issue 2
Research article
 | 
10 Jun 2024
Research article |  | 10 Jun 2024

The Geometric Correction Method for zircon (U–Th) ∕ He chronology: correcting systematic error and assigning uncertainties to alpha-ejection corrections and eU concentrations

Spencer D. Zeigler, Morgan Baker, James R. Metcalf, and Rebecca M. Flowers

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Latest update: 13 Mar 2025
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Short summary
(U–Th)/He chronology relies on accurate measurements of zircon grain dimensions, but the systematic error and uncertainty associated with those measurements have been unquantified until now. We build on the work of Zeigler et al. (2023) and present the zircon Geometric Correction Method, a simple solution to correcting the error and quantifying the geometric uncertainty in eU and dates. Including this geometric correction and uncertainty matters for data evaluation and interpretation.
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