Clay hydroxyl isotopes show an enhanced hydrologic cycle during the Paleocene-Eocene Thermal Maximum.

Nat Commun · 2022 · PMC9780225 · PMID 36550174

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Although the decrease in δ 2 H OH at the PETM onset is the largest observed change, both the measured δ 2 H OH and the calculated δ 2 H OH-SW show a clear trend towards more negative values in the period leading up to the PETM onset.

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