AUTHOR=Orihuela Johanset , Melinte Dobrinescu Mihaela C. , Maurrasse Florentin J.-M. R. TITLE=Characterization of the Weissert oceanic anoxic event in lower Cretaceous limestones of the Guaniguanico terrain, Sierra de los Órganos, Western Cuba JOURNAL=Frontiers in Earth Science VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2025.1549274 DOI=10.3389/feart.2025.1549274 ISSN=2296-6463