About the Authors

Sheila Mishra

sheila.mishra@gmail.com

Affiliation Department of Archaeology, Deccan College, Deemed University, Pune, India

Naveen Chauhan

Affiliation Geosciences Division, Physical Research Laboratory, Ahmedabad, India

Ashok K. Singhvi

Affiliation Geosciences Division, Physical Research Laboratory, Ahmedabad, India

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AS SM NC. Performed the experiments: NC SM AS. Analyzed the data: SM AS NC. Contributed reagents/materials/analysis tools: AS SM NC. Wrote the manuscript: SM AS NC. Dating of the Samples: NC AS.