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In other words, the biochemical clock that this method relies on runs at a different rate in different environments.Fluorine analysis is primarily used for verifying whether or not two fossils in the same strata at a site were in fact contemporaneous.We will never know whether he was really the perpetrator, but he is now the leading candidate.Another candidate was a famous practical joker who lived near the Piltdown gravel deposit during the early 20th century.For instance, if we find a fossil bone below the strata 3 rock level shown above, we assume that the animal most likely lived at a time before that layer was formed.

This is due to the fact that one or both of the objects may have been moved or redeposited into a different location.can be used to tell us whether or not the animals they were from actually lived at about the same time.This relative dating method is based on the fact that there are specific progressive chemical changes in skeletal remains that result from burial underground.In the past, relative dating methods often were the only ones available to paleoanthropologists.As a result, it was difficult to chronologically compare fossils from different parts of the world.

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