1. Earth and Environmental Science, Centre for Archaeological Science, KU Leuven, Celestijnenlaan 200E, B-3001 Heverlee, Belgium
2. Analytical, Environmental and Geochemistry, Vrije Universiteit Brussel, Triomflaan 2, B-1050 Elsene, Belgium
3. Atomic and Mass Spectrometry − A&MS research group, Department of Chemistry, Ghent University, Campus Sterre, Krijgslaan 281-S12, B-9000 Ghent, Belgium
4. School of Earth Sciences, University of Bristol, Wills Memorial Building Queens Road, Bristol BS8 1RJ, United Kingdom
5. Department of Climate Geochemistry, Max Planck Institute for Chemistry, Hahn-Meitner-Weg 1, 55128 Mainz, Germany
6. SPW, AWAP (agence wallone du patrimoine), Direction opérationelle Zone Est − Service de l’Archéologie, rue Montagne Sainte-Walburge 2, B-4000 Liège, Belgium
7. UR Art, Archéologie Patrimoine, Université de Liège, allée du six août 10, B-4000 Liège, Belgium
8. Faculty of archaeology, Leiden University, Einsteinweg 2, 2333 CC Leiden, The Netherlands