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If so, the data will fall on an isochron line, but will be all over the place.

If a rock is heated during its lifetime, the system gets disturbed and some of the parent and/or daughter isotopes may move in or out of the rock.Those that did the decaying are called parent nuclei.If you have a rock that contains radioactive isotopes, these will decay over time.A very common claim of young earth creationists in trying to reject the evidence for an old earth is to loudly proclaim that radiometric dating methods “makes assumptions” and that these “assumptions” are somehow fatally flawed or not supported by evidence.These claims generally land in three different categories: (1) radiometric dating assumes that initial conditions (concentrations of mother and daughter nuclei) are known, (2) radiometric dating assumes that rocks are closed systems and (3) radiometric dating assumes that decay rates are constant.This serves as strong evidence for the reliability of radiometric dating methods. These isotopes differ in the number of neutrons they have in their nuclei.Those isotopes that are not stable decay into daughter nuclei.Most young earth creationists reject all of these points.As a scientific skeptics, we ask ourselves: is this really the case?As time goes on, the ratio of the parent to daughter nuclei will change and decrease (as more parent nuclei decay into daughter nuclei, the former decreases and the latter increases).Measuring this ratio gives us an idea of how long ago the rock formed. Doesn’t this assume that the rocks are closed systems?

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  1. I will attempt to give you a few answers to your questions concerning radiometric dating. If you want to study what creationists say about radiometric dating in depth, I recommend three books, The Mythology of Modern Dating Methods and Studies in Flood Geology, both by John Woodmorappe and Creation's Tiny Mystery by.

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