Differences between relative and radiometric dating

differences between relative and radiometric dating

The age of the fossil must be determined so it can be compared to other fossil species from the same time period. The abundances of parent and daughter isotopes in a sample can be measured and used to determine their age. Third, magnetism in rocks can be used to estimate the age of a fossil site.

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Absolute dating methods determine how much time has passed since rocks formed by measuring the radioactive decay of isotopes or the effects of radiation on the crystal structure of minerals.

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