About the Authors

Timothy C. Hill

tch2@st-andrews.ac.uk

Affiliation Department of Earth and Environmental Science, University of St Andrews, St Andrews, United Kingdom

Mathew Williams

Affiliation School of GeoScience, The University of Edinburgh, Edinburgh, United Kingdom

A. Anthony Bloom

Affiliation School of GeoScience, The University of Edinburgh, Edinburgh, United Kingdom

Edward T. A. Mitchard

Affiliation School of GeoScience, The University of Edinburgh, Edinburgh, United Kingdom

Casey M. Ryan

Affiliation School of GeoScience, The University of Edinburgh, Edinburgh, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TCH MW AAB ETAM CMR. Performed the experiments: TCH. Analyzed the data: TCH AAB. Wrote the paper: TCH MW AAB ETAM CMR.