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April 21, 2014

Homework Help: Geology

Posted by A.W. on Tuesday, March 31, 2009 at 9:47am.

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Describe your assigned method and how it is used to evaluate geologic time.

My assigned method was Absolute Dating / Numerical Age. Absolute Dating / Numerical Age is the process that assigns a numerical age ( this tells how old a rock or fossil is);to a rock or a fossil using radiometric dating ( the method that uses radioactive decay of certain living- organisms) called radiometric isotopes. Since decay pairs have steady decay rates, they can have a known half life. By comparing parentages or parents isotopes to stable children or daughter isotopes and the decay rate, the age can be determined, usually with minimal error.

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