The Editors of Encyclopaedia Britannica.
However, you now know why this fact doesn't at all invalidate radiocarbon dates of objects younger than twenty thousand years and is certainly no evidence for the notion that coals and oils might be no older than fifty thousand years.
It is oxidised quickly and absorbed in great quantities by all living organisms - animal and plant, land and ocean dwelling alike.
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Description: The ions are accelerated and passed through a stripper, which removes several electrons so that the ions emerge with a positive charge. Detecting radiocarbon in nature Carbon was first discovered in by Martin Kamen — and Samuel Ruben —who created it artificially using a cyclotron accelerator at the University of California Radiation Laboratory in Berkeley.