How far back is carbon dating good for

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Dec 18 Read Sincescientists have reckoned the ages of many old objects by measuring the amounts of radioactive carbon they contain. Radiocarbon dating can easily establish that humans have been on the earth for over twenty thousand years, at least twice as long as creationists are willing to allow. Radiocarbon dating is a method that provides objective age estimates for carbon-based materials that originated from living organisms. Your email address is used to log in and will not be shared or sold.

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The carbon clock is getting reset.

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Seventy years ago, American chemist Willard Libby devised an ingenious method for dating organic materials. This site uses cookies from Google and other third parties to deliver its services, to personalise adverts and to analyse traffic. It provides an excellent record of fossils and sediments representing Aucilla life in the range of 30, years ago. Geologists do not use carbon-based radiometric dating to determine the age of rocks. Rachel Wood does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

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