AUTHOR=Wu Dun , Wu Jian , Yousaf Balal , Sun Ruoyu , Raji Munira TITLE=Editorial: Advances in geochemistry and macromolecular structure of coal JOURNAL=Frontiers in Earth Science VOLUME=11 YEAR=2023 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2023.1177271 DOI=10.3389/feart.2023.1177271 ISSN=2296-6463