how reliable is carbon dating science

And while the stable C in the organism remains the same, the C isotopes begin to decay. In a paper published to the Proceedings of the National Academy of Sciences , the team led by archaeologist Stuart Manning identified variations in the carbon 14 cycle at certain periods of time throwing off timelines by as much as 20 years. By looking at the ratio of carbon to carbon in the sample and comparing it to the ratio in a living organism, it is possible to determine the age of a formerly living thing fairly precisely. It is mostly found in atmospheric carbon dioxide because that is where it is constantly being produced by collisions between nitrogen atoms and cosmic rays. Radiocarbon-dating the bone only tells us when the creature died. The radiation hardly penetrates the outermost layer of skin on the body. What a conundrum!

HOW RELIABLE IS CARBON DATING SCIENCE / janiceclark.net

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