Detection of Early-Middle Devonian biotic crises in East Gondwana, Paraná Basin, Brazil: An organic geochemical approach

Luiza Rodrigues Rocha,Eliane Soares de Souza,Hélio Jorge Portugal Severiano Ribeiro, Danielle Mitze Muller Franco,Taynara Covas,Boniek Gontijo Vaz,Georgiana Feitosa da Cruz

Organic Geochemistry（2023）

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摘要

•Changes in paleoenvironmental physicochemical conditions throughout Devonian events.•Zilchov, Daleje, Choteč, and Kačák events identified in Paraná Basin, Brazil.•Saturated and aromatic biomarker results indicating biotic crises in the Devonian.•Perylene as a marker of plant fungal degradation during Eifelian-Givetian.•FT ICR-MS analysis results contributed to biotic crisis events identification.

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paraná basin,east gondwana,early-middle

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