Dating based on radioactive decay series Uranium–lead dating

Dating based on radioactive decay series

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The uranium content of the material can then be calculated from the number of tracks and the neutron flux. This causes induced fission of U, as opposed to the spontaneous fission of U.

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The age that can be calculated by radiometric dating is thus the time at which the rock or mineral cooled to closure temperature. This process by which an unstable atomic nucleus loses energy by releasing radiation is called radioactive decay.

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For geologic dating, where the time span is on the order of the age of the earth and the methods use the clocks in the rocksthere are two main uncertainties in the dating process: Luminescence dating Luminescence dating methods are not radiometric dating methods in that they do not rely on abundances of isotopes to calculate age.