argón-39

argón-40/argón-39

A radiometric dating method based on the changing ratio of argon-40 to argon-39 with the passage of time in volcanic rock or ash. This technique was derived from potassium-argon dating. The argon-40/argon-39 method is usually more accurate than potassium-argon dating and doesn't require as large a sample.

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Industry/Domain: Anthropology
Category: Physical anthropology
Company: Palomar College
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