About the Authors

Tjaark Siemssen

Roles Conceptualization, Formal analysis, Investigation, Methodology, Writing – original draft

tsiemss1@uni-koeln.de

Affiliations Institute for Prehistory, University of Cologne, Cologne, Germany, Institute of Archaeology & Merton College, University of Oxford, Oxford, United Kingdom

Aderonke Oludare

Roles Data curation, Formal analysis, Investigation, Methodology, Writing – original draft

Affiliation Department of Chemistry, Cape Breton University, Sydney, Canada

Marcel Schemmel

Roles Investigation, Writing – review & editing

Affiliation TraceoLab, University of Liège, Liège, Belgium

Janos Puschmann

Roles Investigation, Writing – review & editing

Affiliations Institute for Prehistory, University of Cologne, Cologne, Germany, Department of Geology and Mineralogy, University of Cologne, Cologne, Germany

Matthias Bierenstiel

Roles Conceptualization, Funding acquisition, Methodology, Project administration, Supervision, Writing – review & editing

Affiliation Department of Chemistry, Cape Breton University, Sydney, Canada

Competing Interests

The authors have declared that no competing interests exist.