A deposit of volcanic tuff contains the isotope potassium-40, which is slowly decaying into argon-40.How might the apparent age of the sample be affected if the volcanic tuff is heated and remains heated for a long period of time?

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Heating the sample could release some of the argon-40, which could make the sample appear younger than it really is. This is because the amount of argon-40 present in the sample would be less than expected based on the amount of potassium-40 present.

A Deposit of Volcanic Tuff Contains the Isotope Potassium-40, Which