Timeline_of_euxinia_in_ancient_oceans.png
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Summary
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English:
Presence of euxinia in the world's ancient deep oceans. According to Canfield, the deep ocean became sulfitic around 1.8 billion years ago and stayed that way for much of the boring billion. Periodic euxinia dominated through the Late Devonian Kelwasser events, and then most likely disappeared during the Carboniferous. Euxinia reemerged at the Permian-Triassic Boundary, and may have been present during the Ocean Anoxia Events of the Mesozoic. Euxinia is rare in Cenozoic oceans.
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| Date | |
| Source | Own work |
| Author | Hgossy |
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