Radioactive dating of organic materials
The method works best if neither the parent nuclide nor the daughter product enters or leaves the material after its formation.
Anything which changes the relative amounts of the two isotopes (original and daughter) must be noted, and avoided if possible.
Radiometric dating is also used to date archaeological materials, including ancient artifacts.
Radiometric dating methods are used to establish the geological time scale.
Modern Radiometric Dating Techniques Modern radiometric dating uses many different techniques to identify both organic and inorganic objects.
When an isotope decays, it often becomes a different kind of element altogether.While not all objects have the same isotopes, both living and nonliving objects have some sort of decaying, radioactive isotope that can be used based on known decay rates. An isotope of some sort is located and isolated within an object.That isotope is then compared to its decaying product and scientists are able to use known decay rates to determine how old the initial isotope is.Contamination from outside, or the loss of isotopes at any time from the rock's original formation, would change the result.It is therefore essential to have as much information as possible about the material being dated and to check for possible signs of alteration.