Analytical and modelling strategies for thermal histories from in situ (U-Th-Sm)&thinsp;∕&thinsp;He data of single apatites

Maier, Ann-Kathrin; Glotzbach, Christoph; Falkowski, Sarah

doi:10.5194/gchron-8-165-2026

Articles | Volume 8, issue 1

https://doi.org/10.5194/gchron-8-165-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gchron-8-165-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 8, issue 1

Research article

|

27 Mar 2026

Research article |

| 27 Mar 2026

Analytical and modelling strategies for thermal histories from in situ (U-Th-Sm) ∕ He data of single apatites

Ann-Kathrin Maier, Christoph Glotzbach, and Sarah Falkowski

Supplement

https://doi.org/10.5194/gchron-8-165-2026-supplement

Data sets

Code and data supplement: Analytical and modelling strategies for thermal histories from in situ (U-Th-Sm)/He data of single apatites Ann-Kathrin Maier et al. https://doi.org/10.5281/zenodo.15856623

Short summary

(U-Th-Sm)/He dating is a tool to investigate when and how rocks cooled through the upper Earth’s crust. We explore strategies to reconstruct thermal histories of individual apatite crystals by direct measurement of their helium concentration profile and radionuclide distribution. This approach allows for the inclusion of inhomogeneous grains in thermal modelling, which is often problematic in traditional (U-Th-Sm)/He methods.