1. Geozentrum Nordbayern Friedrich‐Alexander‐University Erlangen‐Nürnberg Loewenichstraße 28 Erlangen 91054 Germany
2. Department of Sport Science Bayreuth Center of Ecology and Environmental Research University of Bayreuth Universitätsstraße 30 Bayreuth 95440 Germany
3. Analytical, Environmental and Geo‐Chemistry Vrije Universiteit Brussel Pleinlaan 2 Brussels 1050 Belgium
4. Department of Geology Ghent University Krijgslaan 281 Gent 9000 Belgium
5. Department of Earth Sciences Mountjoy Site Durham University South Road Durham DH1 3LE UK