| Issue |
EPJ Web Conf.
Volume 335, 2025
EOS Annual Meeting (EOSAM 2025)
|
|
|---|---|---|
| Article Number | 03048 | |
| Number of page(s) | 2 | |
| Section | Topical Meeting - Applications of Optics and Photonics | |
| DOI | https://doi.org/10.1051/epjconf/202533503048 | |
| Published online | 22 September 2025 | |
https://doi.org/10.1051/epjconf/202533503048
Tracing the Geochemical History of Eocene Fish Using X-ray Fluorescence
1 Dept. de Física e Astronomia, FCUP, Rua do Campo Alegre 687, 4169-007, Porto, Portugal
2 Center for Applied Photonics, INESC TEC, Rua do Campo Alegre 687, 4169-007, Porto, Portugal
3 Department of Geosciences, Ambient and Spatial Planning, FCUP, Rua do Campo Alegre 4169-007 Porto, Portugal
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 22 September 2025
Abstract
A study of an Eocene fish fossil using portable XRF revealed distinct geochemical differences between the fossil and surrounding sediment. Elements like uranium, yttrium, arsenic, and phosphorus were found only in the fossil, while calcium and iron appeared in both regions. These patterns point to selective elemental incorporation during early fossilization and diagenesis processes. The results highlight XRF's usefulness in verifying fossil authenticity, provenance and understanding the chemical processes during fossilization.
© The Authors, published by EDP Sciences, 2025
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