AUTHOR=Wang Changsheng , Tian Lili , Sun Chuanrui , Deng Yuwei , Zhou Ying , Nie Xin TITLE=Multi-scale characterization of tight carbonate rocks based on digital cores JOURNAL=Frontiers in Earth Science VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2025.1538316 DOI=10.3389/feart.2025.1538316 ISSN=2296-6463