Coupled Hg isotope dynamics reveal eruption pulses across the Permian-Triassic mass extinction.

Nat Commun · 2026 · PMC13408987 · PMID 42277058

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In the LFY section, although overall variability is limited, event samples define a clear trend along an oblique line between terrestrial source rocks (0.11 ± 0.10 ‰), marine carbonate (0.06 ± 0.08 ‰), and volcanic Δ 199 Hg (0.03 ± 0.05 ‰) values, indicating a volcanic signature.

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