absolute and realative dating

In the figure, that distinct age range for each fossil species is indicated by the grey arrows underlying the picture of each fossil. Reversed polarity is when the magnetic "north" is near the geographic south pole. Edited October 11, by believeinHim. It is best to think of radiometric dating results as scientific hypotheses that need to be tested further; a date should be supported by numerous additional date analyses to provide certainty in the accuracy. This process is called radioactive decay. Relative dating methods estimate whether an object is younger or older than other things found at the site. Frequency seriations record the number of artifacts of a particular style or type found, allowing archaeologists to observe a sequence of stylistic changes and infer applicable cultural changes.

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