About the Authors

Noel A. Heim

nheim@wisc.edu

Affiliation Department of Geoscience, University of Wisconsin-Madison, Madison, Wisconsin, United States of America

Shanan E. Peters

Affiliation Department of Geoscience, University of Wisconsin-Madison, Madison, Wisconsin, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: NAH SEP. Performed the experiments: NAH. Analyzed the data: NAH. Wrote the paper: NAH SEP.