Wiki radiometric dating

Posted by / 03-Apr-2020 07:02

The processes that form specific materials are often conveniently selective as to what elements they incorporate during their formation.In the simplest case, the material will incorporate a parent nuclide and reject the daughter nuclide.

These temperatures are experimentally determined in the lab by artificially resetting sample minerals using a high-temperature furnace.In these cases, usually the half-life of interest in radiometric dating is the longest one in the chain, which is the rate-limiting factor in the ultimate transformation of the radioactive nuclide into its stable daughter.Isotopic systems that have been exploited for radiometric dating have half-lives ranging only about 10 years (e.g., tritium) to over 100 billion years (e.g., Samarium-147).Precision is enhanced if measurements are taken on different samples from the same rock body but at different locations.Alternatively, if several different minerals can be dated from the same sample and are assumed to be formed by the same event and were in equilibrium with the reservoir when they formed, they should form an isochron.

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Radiometric dating (often called radioactive dating) is a technique used to date materials, usually based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates.

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