A researcher who uses carbon dating on ancient times

27-Jul-2017 22:14

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Until now scholars have had only vague evidence for dating when events happened during the earliest periods of civilisation, with estimates being within hundreds of years.However, the unusually high levels of the radioactive isotope carbon-14 found in tree-rings laid down during the radiation bursts could help reliably pinpoint dates.The early history of ancient Egypt is murky because although there are plenty of archaeological finds, including royal tombs, there is no reliable way to attribute firm dates to the various reigns and periods.Radiocarbon dating has previously been of limited use because dating individual objects gives ranges of up to 300 years.The crucial point is that the time-markers will also be present in every living plant or tree that grew at the time of a radiation surge, including in the timber used in ancient buildings or other artefacts fashioned from the plants.The paper suggests that the existing tree-ring data are likely to reveal other radiocarbon surges in particular years.

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Now, the results of an experiment might just prove that they were right all along.The distinct spikes act as time-markers like secret clocks contained in timber, papyri, baskets made from living plants or other organic materials, says the paper published in the Scholars believe that intense solar storms caused major bursts of radiation to strike the Earth in 775 and 994AD, which resulted in distinct spikes in the concentration of radiocarbon in trees growing at that time.

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