1. Department of Analytical Chemistry, X-ray Microspectroscopy and Imaging Research Group (XMI), Ghent University, Krijgslaan 281 S12, 9000 Ghent, Belgium
2. Department of Geology, Pore-scale Processes in Geomaterials Research Group (PProGRess)/UGCT, Ghent University, Krijgslaan 281 S8, 9000 Ghent, Belgium
3. Department of Archaeology, Prehistory Research Group, Ghent University, Sint-Pietersnieuwstraat 35, 9000 Ghent, Belgium
4. Department of Earth Sciences, Environmental Hydrogeology, Utrecht University, Princetonlaan 8a, 3584 CB Utrecht, The Netherlands