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If that had happened, Darwin’s ideas would have been refuted and abandoned.Instead, radioactive dating indicates that Earth is about 4.5 billion years old—plenty of time for evolution and natural selection to take place.[i] But as we show here, geologists do not use radioactivity to establish the age of certain rocks.Radiometric dating (often called radioactive dating) is a way to find out how old something is.The method compares the amount of a naturally occurring radioactive isotope and its decay products, in samples. It is the main way to learn the age of rocks and other geological features, including the age of the Earth itself.A particular isotope of a particular element is called a nuclide. That is, at some point in time, an atom of such a nuclide will spontaneously change into a different nuclide by radioactive decay.The decay may happen by emission of particles (usually electrons (beta decay), positrons or alpha particles) or by spontaneous nuclear fission, and electron capture.The first fatal flaw is that it relies upon assumptions.The assumptions are untestable because we cannot go back millions of years to verify the findings done today in a laboratory, and we cannot go back in time to test the original conditions in which the rocks were formed.
That’s sure putting a lot of faith in something that can’t be tested through direct observation.Radiometric dating is also used to date archaeological materials, including ancient artifacts.