How most life on Earth went wiped out 250 million a long time back? Utilization of different sulfur isotopes to explore redox science changes in the Panthalassic Ocean can help which contains ∼85– 90% of the contemporaneous worldwide sea. The S-isotopic inconsistencies from Canada and Japan give proof to the timing of the beginning of euxinia and mixing of sulfidic and oxic waters. Information recommends that shoaling of H2S-rich waters may have driven the mass extinction and postponed the recuperation of the marine biological system.
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