What is the half life of potassium argon dating


21-Oct-2019 02:00

One thing to keep in mind is that high-precision isotope measurements always measure ratios between isotopes, not absolute concentrations.To understand argon-argon dating, you need to understand potassium-argon dating.

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Some of the potassium-39 forms argon-39 by an n,p reaction.

A problem is that it takes two separate measurements to get the potassium concentration and the argon isotope ratios, increasing the uncertainty.



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