AUTHOR=Tao Zongheng , Tang Wei , Li Xingling , Tao Kang , Dang Wengang TITLE=Slip characteristics of planar and rough granite fractures under unloading normal force JOURNAL=Frontiers in Earth Science VOLUME=12 YEAR=2024 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2024.1443192 DOI=10.3389/feart.2024.1443192 ISSN=2296-6463