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Carbon dating a fossil

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In the case of radiocarbon dating, the half-life of carbon 14 is 5,730 years.

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The stable form of carbon is carbon 12 and the radioactive isotope carbon 14 decays over time into nitrogen 14 and other particles.Though still heavily used, relative dating is now augmented by several modern dating techniques.Radiocarbon dating involves determining the age of an ancient fossil or specimen by measuring its carbon-14 content.A T-shirt made in 2050 could look exactly like one worn by William the Conqueror a thousand years earlier to someone using radiocarbon dating if emissions continue under a business-as-usual scenario.By 2100, a dead plant could be almost identical to the Dead Sea scrolls, which are more than 2,000 years old.These well-known “aging” properties of atmospheric carbon were pinpointed for different emissions scenarios in a paper published in the yesterday.