Absolute and relative dating examples

Accurate dates also allow us to create sequences of evolutionary change and work out when species appeared or became extinct. These are: Where possible, several different methods are used and each method is repeated to confirm the results obtained and improve accuracy.Different methods have their own limitations, especially with regard to the age range they can measure and the substances they can date.During this process the pieces of the atom move apart at high speed, causing damage to the rock or mineral.A common problem with any dating method is that a sample may be contaminated with older or younger material and give a false age.This problem is now reduced by the careful collection of samples, rigorous crosschecking and the use of newer techniques that can date minute samples.

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organisms, geologists employ a variety of techniques.

These include some that establish a relative chronology in which occurrences can be placed in the correct sequence relative to one another or to some known succession of events.

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