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Fine-tuning radiocarbon dating could 'rewrite' ancient events -- ScienceDaily
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Carbon 14 dating 1
Representative image Photograph: Twitter. New revelations shed light on when Neanderthals really disappeared from Europe. And it turns out, the earlier beings perished way earlier than previously believed. The new study, which appeared in the Proceedings of the National Academy of Sciences, undertaken by a collaborative team from Belgium, Britain, and Germany sheds light on when our closes relative disappeared from the planet.
Radiocarbon dating also referred to as carbon dating or carbon dating is a method for determining the age of an object containing organic material by using the properties of radiocarbon , a radioactive isotope of carbon. The method was developed in the late s at the University of Chicago by Willard Libby , who received the Nobel Prize in Chemistry for his work in It is based on the fact that radiocarbon 14 C is constantly being created in the atmosphere by the interaction of cosmic rays with atmospheric nitrogen. The resulting 14 C combines with atmospheric oxygen to form radioactive carbon dioxide , which is incorporated into plants by photosynthesis ; animals then acquire 14 C by eating the plants. When the animal or plant dies, it stops exchanging carbon with its environment, and thereafter the amount of 14 C it contains begins to decrease as the 14 C undergoes radioactive decay.