About the Authors

Stéphanie Leroy

stephanie.leroy@cea.fr

Affiliation Archaeomaterials and Alteration Prediction Laboratory (LAPA), LMC-IRAMAT UMR5060/NIMBE UMR3685, Centre National de la Recherche Scientifique, CEA Saclay, Gif/Yvette, France

Mitch Hendrickson

Affiliation Department of Anthropology, University of Illinois at Chicago, Chicago, Illinois, United States of America

Emmanuelle Delqué-Kolic

Affiliation Measurement of Carbon 14 Laboratory (LMC14), National Platform, LSCE UMR8212, Centre National de la Recherche Scientifique, CEA Saclay, Gif/Yvette, France

Enrique Vega

Affiliation Archaeomaterials and Alteration Prediction Laboratory (LAPA), LMC-IRAMAT UMR5060/NIMBE UMR3685, Centre National de la Recherche Scientifique, CEA Saclay, Gif/Yvette, France

Philippe Dillmann

Affiliation Archaeomaterials and Alteration Prediction Laboratory (LAPA), LMC-IRAMAT UMR5060/NIMBE UMR3685, Centre National de la Recherche Scientifique, CEA Saclay, Gif/Yvette, France

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SL MH PD. Performed the experiments: SL ED-K EV. Analyzed the data: SL ED-K MH. Wrote the paper: SL MH.