Absolute dating radiometric dating

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The calculation are based on the percentages of parent, and daughter elements.

These calculations are based on geological assumptions of uniform process, the lack of erosion of either the parent or daughter elements.

The technique of comparing the abundance ratio of a radioactive isotope to a reference isotope to determine the age of a material is called radioactive dating.

Many isotopes have been studied, probing a wide range of time scales.

C and counting the amount of each) allows one to date the death of the once-living things.

The results are often determined by the estimates of the presumed age of the strata based on relative ages.

The age determined by relative dating is based on the rules of super imposition and the presumed age of strata based on fossils.

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