This would have resulted in an enormous amount of carbon-12 being released into the oceans and atmosphere.The effect would be not unlike opening a can of soda and having the carbon dioxide fizzing out.As with any radioactive isotope, carbon-14 decays over time.

The truth is, carbon-14 dating (or radiocarbon dating, as its also called) is not a precise dating method in many cases, due to faulty assumptions and other limitations on this method.The water in these subterranean chambers would not have contained carbon-14, as the water was shielded from cosmic radiation.This would have upset the ratio of carbon-14 to carbon-12. Libby also assumed that the amount of carbon-14 being presently produced had equaled the amount of carbon-12 he assumed that they had reached a balance.Carbon has a weight of twelve atomic mass units (AMUs), and is the building block of all organic matter (plants and animals).A small percentage of carbon atoms have an atomic weight of 14 AMUs. Carbon-14 is an unstable, radioactive isotope of carbon 12.That means if you took one pound of 100 percent carbon-14, in 5,730 years, you would only have half a pound left.

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