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cybercuzco t1_ivm0eyx wrote

Reply to comment by WoosterChops in Discovery of bronzes rewrites Italy’s Etruscan-Roman history by VoloNoscere

Corrosion comes from oxygen. If you use up all the oxygen corrosion stops. So in normal water the oxygen in the water comes from the air and as the water moves it brings fresh oxygen to the area being corroded. If you put the thing in mud or peat now the water can’t move so no fresh oxygen is being brought in.

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Micascisto t1_ivn5qd9 wrote

This is the right answer. Same basic mechanism for the fossilization of organic parts, otherwise they decay.

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