Carbon 14 dating dendrochronology

Scientists at the Lamont-Doherty Geological Laboratory of Columbia University at Palisades, N.

Y., reported today in the British journal Nature that some estimates of age based on carbon analyses were wrong by as much as 3,500 years.

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with a standard deviation of plus or minus 120 years, the chances are two in three that that sample dates from between 1120 and 880 BC.

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