Can relative dating always be used
These processes result in All of these processes confuse the stratigraphic record.
This relative dating method is based on the fact that there are specific progressive chemical changes in skeletal remains that result from burial underground.
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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.
However, we must be careful to note whether or not the fossil comes from the mixed strata zone of the filled in hole..