The carbon-14 isotope would vanish from Earth's atmosphere in less than a million years were it not for the constant influx of cosmic rays interacting with molecules of nitrogen (NFigure 1: Diagram of the formation of carbon-14 (forward), the decay of carbon-14 (reverse).
Carbon-14 is constantly be generated in the atmosphere and cycled through the carbon and nitrogen cycles.
A January 20, 2005 article in the scholarly, peer-reviewed scientific journal Thermochimica Acta (Volume 425, pages 189-194, by Raymond N.
Radiocarbon dating revealed that the Turin Shroud, the sacred linen cloth believed by Christians to be the burial garment of Christ, was actually less than 1000 years old.
But the “revolutionary” technique may now be threatened by fossil fuel emissions.
(Claudio Papi/Reuters) Nearly three decades ago scientists were granted access to one of the world’s most mystifying and sacred objects: the Shroud of Turin.
The ancient rectangle of linen, with its strange stains in the shape of a tortured body, had long been venerated as the burial garment of Christ.
For all who use carbon 14 dating to study all manner of ancient objects, a period of careful reassessment is just beginning.