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27-Jan-2018 15:32

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.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.

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An archaeologist uses carbon 14 to date things younger than 60,000 years.Each volcanic eruption produces a new deposit of ash and rock.Fossils and other objects that accumulate between these eruptions lie between two different layers of volcanic ash and rock.Most people think that radioactive dating has proven the earth is billions of years old.

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After all, textbooks, media, and museums glibly present ages of millions of years as fact.

This is the method used to date rocks that don't have fossils.



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