AUTHOR=Wang Jiping , Shao Hongmei , Zhang Yuanhao , Jiang Zhenxue , Gao Bo , Li Lingling , Pan Huifang , Wang Haonan , Lu Xi , Qiu Hengyuan , He Xiaobiao , Zhang Chengju TITLE=Multifractal characteristics of pore structure in the terrestrial shale reservoirs of the Lianggaoshan formation in northeast sichuan basin and its geological significance JOURNAL=Frontiers in Earth Science VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2025.1505090 DOI=10.3389/feart.2025.1505090 ISSN=2296-6463