Is radiometric dating relative or absolute

The resulting layers, called varves, give scientists clues about past climate conditions.

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For example, layers form within glaciers because there tends to be less snowfall in the summertime, allowing a dark layer of dust to accumulate on top of the winter snow (Figure 11.23).Radiometric dating is determining the exact order of past events via determining the absolute age of geological features.We can use this method to determine how long a rock was formed and the ages of fossils that are trapped in these rocks.There we use trace radioactive impurities incorporated in these rocks when they were formed.In this method we compare the abundance of a naturally occurring radioactive isotope within the material to the abundance of its decay products, which form at a known constant rate of decay. Relative dating is the method of providing the relative order of past events via determining the approximate age of geological features.

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