Explain potassium 40 dating dating site for nurses


08-Apr-2018 14:32

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However, even with such historical calibration, archaeologists do not regard C produced and therefore dating the system.

The amount of cosmic rays reaching the Earth varies with the sun's activity, and with the Earth's passage through magnetic clouds as the solar system travels around the Milky Way galaxy.

So, we have a “clock” which starts ticking the moment something dies.

Obviously, this works only for things which were once living.

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Anything over about 50,000 years old, should theoretically have no detectable C.

That is, they take up less than would be expected and so they test older than they really are.



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