Funding for this research was provided by:
Directorate for Geosciences (NSF-EAR-0959306)
MINECO (CGL2014-55108-P and CGL2017-92600-EXP)
U.S. Department of Energy (DE-SC0012704)
Article History
First Online: 4 February 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest, whether ethical, financial or otherwise.