Massive perturbations to atmospheric sulfur in the aftermath of the Chicxulub impact.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 35312339.
- Also identified by DOI 10.1073/pnas.2119194119 and PMC identifier 9168947.
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Abstract
SignificanceSulfur isotopes confirm a key role for atmospheric sulfur gases in climatic cooling, mass extinction, and the demise of dinosaurs and other global biota after the Chicxulub bolide impact at the Cretaceous-Paleogene boundary. The sulfur isotope anomalies are confined to beds containing ejecta and, in the immediately overlying sediments, are temporally unrelated to known episodes of volcanism that also bracket this event, further addressing the controversial role of the Deccan Traps in the extinction.
Medical subject headings
- Dinosaurs
- Extinction, Biological