Why Does a Potassium-Argon Dating Time Scale Reset During Heating

question 52

Multiple Choice

Why does a potassium-argon dating time scale reset during heating?

• A) Expansion of the crystal structure may permit the loosely caged argon atoms to escape.
• B) Reduction of the crystal structure may permit the loosely caged argon atoms to escape.
• C) It gets so hot that it throws off the time scale.
• D) This does not happen.

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