Massive perturbations to atmospheric sulfur in the aftermath of the Chicxulub impact.
Proc Natl Acad Sci U S A
; 119(14): e2119194119, 2022 04 05.
Article
em En
| MEDLINE
| ID: mdl-35312339
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.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Dinossauros
/
Extinção Biológica
Limite:
Animals
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article