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16-Sep-2015 14:05

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It is therefore never used to determine the age of fossils in the geological column as they are considered to be millions of years old.Interestingly though, fossils submitted for radiocarbon testing yield results and fix their ages at only a few thousand years.

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These rates of decay are known, so if you can measure the proportion of parent and daughter isotopes in rocks now, you can calculate when the rocks were formed.

Geologists often need to know the age of material that they find.



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