Radiometric dating dictionary married dating personals
A method for determining the age of an object based on the concentration of a particular radioactive isotope contained within it.The amount of the isotope in the object is compared to the amount of the isotope's decay products.The first practical radiometric dating technique, developed in the middle of the 20th century at the University of Chicago, used the isotope carbon-I4, and is a good example of how this procedure works. by radiometric dating, a large set of scientific methods and procedures that involve measurements of the extent of radioactive decay for a variety of chemical elements within geologic samples. These examples are from the Cambridge English Corpus and from sources on the web.
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Most carbon consists of the isotopes carbon 12 and carbon 13, which are very stable.
A very small percentage of carbon, however, consists of the isotope carbon 14, or , which is unstable.
Radiometric dating is also used to date archaeological materials, including ancient artifacts.
Different methods of radiometric dating vary in the timescale over which they are accurate and the materials to which they can be applied.