Problems with radiogenic dating


15-Mar-2020 22:19

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But what happens when the rocks have been disturbed?

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.

Most young earth creationists reject all of these points.

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If you have a rock that contains radioactive isotopes, these will decay over time.

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.

This means that the while different rocks contain different absolute amounts of the two isotopes, the is same.

At the time of formation for a rock, the isotopes for an element are homogenized and so the composition of a certain isotope is the same in all the minerals in the rock.If the samples have been undisturbed closed systems since formation, the data will fall on the same line (the isochron from which the diagram is named).