AUTHOR=Liang Dan , Yang Haiqing , Ping Zekang , Wang Yongyi , Song Kanglei , Chen Chiwei , Li Hao , Li Xingyue , Peng Lixin , Ju Anhua TITLE=Study on the mechanical traits, failure mechanisms, energy responses, and influencing factors of columnar jointed basalts under direct and indirect tensile conditions JOURNAL=Frontiers in Earth Science VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2025.1588874 DOI=10.3389/feart.2025.1588874 ISSN=2296-6463