AUTHOR=Hetényi György , Webb A. Alexander G. , Handy Mark R. TITLE=Editorial: Mountain Building JOURNAL=Frontiers in Earth Science VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2021.789741 DOI=10.3389/feart.2021.789741 ISSN=2296-6463