AUTHOR=Font Eric , Abrajevitch Alexandra , Florindo Fabio TITLE=Editorial: Magnetic Records of Extreme Geological Events JOURNAL=Frontiers in Earth Science VOLUME=4 YEAR=2016 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2016.00094 DOI=10.3389/feart.2016.00094 ISSN=2296-6463