{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["16(1)"],"submitter":["Zhao H"],"pubmed_abstract":["Causal connections among major Ordovician environmental and biological events (i.e., long-term climatic cooling, Hirnantian Glaciation, Great Ordovician Biodiversification Event, and Late Ordovician Mass Extinction) remain in debate, and the hypothesis of volcanism-driven long-term cooling is untested. Here, we present both newly generated and compiled literature data for global volcanic activity (Hg geochemistry), sea-surface temperatures (conodont oxygen isotopes), and chemical weathering intensity (conodont strontium isotopes). This dataset documents a ~25-Myr-long interval of climatic cooling (~470-445 Ma), commencing around the onset of the Middle Ordovician, intensifying during the Late Ordovician, and ultimately culminating in the Hirnantian Glaciation. Cooling was associated with l"],"journal":["Nature communications"],"pagination":["11475"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12749037"],"repository":["biostudies-literature"],"pubmed_title":["Volcanism and basalt weathering drove Ordovician climatic cooling."],"pmcid":["PMC12749037"],"pubmed_authors":["Algeo TJ","Lyu Z","Hao F","Zhang L","Wang X","Zhao H"],"additional_accession":[]},"is_claimable":false,"name":"Volcanism and basalt weathering drove Ordovician climatic cooling.","description":"Causal connections among major Ordovician environmental and biological events (i.e., long-term climatic cooling, Hirnantian Glaciation, Great Ordovician Biodiversification Event, and Late Ordovician Mass Extinction) remain in debate, and the hypothesis of volcanism-driven long-term cooling is untested. Here, we present both newly generated and compiled literature data for global volcanic activity (Hg geochemistry), sea-surface temperatures (conodont oxygen isotopes), and chemical weathering intensity (conodont strontium isotopes). This dataset documents a ~25-Myr-long interval of climatic cooling (~470-445 Ma), commencing around the onset of the Middle Ordovician, intensifying during the Late Ordovician, and ultimately culminating in the Hirnantian Glaciation. Cooling was associated with l","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Dec","modification":"2026-07-15T07:00:19.827Z","creation":"2026-06-30T03:36:16.083Z"},"accession":"S-EPMC12749037","cross_references":{"pubmed":["41387411"],"doi":["10.1038/s41467-025-66316-4"]}}