How accurate is potassium argon dating

The technique can, however, provide the relative ages of bones from the same site.

It is possible to calculate the age of a sample by measuring the uranium content and the density of the fission tracks.Knowing when a dinosaur or other animal lived is important because it helps us place them on the evolutionary family tree.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.This damage is in the form of tiny marks called fission tracks.When volcanic rocks and minerals are formed, they do not contain fission tracks.

Leave a Reply