AUTHOR=Zhuang Hongzhan , Jiang Yuqiang , Li Xingtao , Jiang Chan , Li Shuxin , Wang Zhanlei TITLE=Geochemical characteristics and organic matter accumulation mechanism of the Permian Shanxi Formation transitional shale, eastern Ordos Basin: implications for paleo-weathering, provenance and tectonic setting JOURNAL=Frontiers in Earth Science VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2024.1384098 DOI=10.3389/feart.2024.1384098 ISSN=2296-6463