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01-Nov-2020 08:18

Potassium, an alkali metal, the Earth's eighth most abundant element is common in many rocks and rock-forming minerals.The quantity of potassium in a rock or mineral is variable proportional to the amount of silica present.Because it is present within the atmosphere, every rock and mineral will have some quantity of Argon.Argon can mobilized into or out of a rock or mineral through alteration Ar and potassium, there is not a reliable way to determine if the assumptions are valid.Due to the relatively heavy atomic weight of potassium, insignificant fractionation of the different potassium isotopes occurs.

For the J to be determined, a standard of known age must be irradiated with the samples of unknown age.

Additional advantages of the single isotopic measurements of the K.



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