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Relative dating is used to determine a fossils approximate age by comparing it to similar rocks and fossils of known ages.Absolute dating is used to determine a precise age of a fossil by using radiometric dating to measure the decay of isotopes, either within the fossil or more often the rocks associated with it.The atoms in some chemical elements have different forms, called isotopes.These isotopes break down at a constant rate over time through radioactive decay. Soccer singles dating site soccer players singles searching chat online, fun and.
Using relative dating the fossil is compared to something for which an age is already known.
Index fossils are fossils that are known to only occur within a very specific age range.
Typically commonly occurring fossils that had a widespread geographic distribution such as brachiopods, trilobites, and ammonites work best as index fossils.
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There are two main methods determining a fossils age, relative dating and absolute dating.