About the Authors
- David Burley
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* E-mail: burley@sfu.ca
Affiliation Department of Archaeology, Simon Fraser University, Burnaby, British Columbia, Canada
- Marshall I. Weisler
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Affiliation School of Social Science, University of Queensland, St Lucia, Queensland, Australia
- Jian-xin Zhao
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Affiliation Centre for Microscopy and Microanalysis, University of Queensland, St Lucia, Queensland, Australia
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: DB MIW JxZ. Performed the experiments: JxZ. Analyzed the data: DB MIW JxZ. Contributed reagents/materials/analysis tools: DB JxZ. Wrote the paper: DB MIW JxZ.