About the Authors

Roger A. Close


Affiliation School of Geosciences, Monash University, Clayton, Victoria, Australia

Emily J. Rayfield

Affiliation School of Earth Sciences, University of Bristol, Bristol, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RC ER. Performed the experiments: RC. Analyzed the data: RC. Contributed reagents/materials/analysis tools: RC ER. Wrote the paper: RC. Collected data: RC.