Radiometric dating encyclopedia
Water flow through rocks is important because all parent substances and many daughter substances are water soluble.Radiometric dating (often called radioactive dating) is a way to find out how old something is.Elements exist in different isotopes, with each isotope of an element differing in the number of neutrons in the nucleus.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.
Isotopic Fractionation is a physical separation of isotopes and a non-radioactive source of isotope ratios.
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 transform into a different nuclide.
Although the time at which any individual atom will decay cannot be forecast, the time in which any given percentage of a sample will decay can be calculated to varying degrees of accuracy.
Ages of Rocks in Millions of Years Sometimes different methods used on the same rock produce different ages.
Furthermore, the same method can produce different ages on different parts of the same rock.