Geochronology
Geochronology
GChron
Articles | Volume 4, issue 2
Articles | Volume 4, issue 2
https://doi.org/10.5194/gchron-4-551-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gchron-4-551-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 4, issue 2
Short communication/technical note
 | 
19 Aug 2022
Short communication/technical note |  | 19 Aug 2022

Short communication: Mechanism and prevention of irreversible trapping of atmospheric He during mineral crushing

Stephen E. Cox, Hayden B. D. Miller, Florian Hofmann, and Kenneth A. Farley

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Latest update: 06 May 2025
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Short summary
Noble gases are largely excluded from minerals during rock formation, but they are produced by certain radioactive decay schemes and trapped in mineral lattices. However, they are present in the atmosphere, which means that they can be adsorbed or trapped by physical processes. We present details of a troublesome trapping mechanism for helium during sample crushing and show when it can be ignored and how it can be easily avoided during common laboratory procedures.
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