Radio carbon dating explained dating profiles mature women


Isotopes participate in the same chemical reactions but often at differing rates.

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Radio carbon dating explained

Signals of this kind are often used by chemists studying natural environments.

A hydrocarbon found in beach sediments, for example, might derive from an oil spill or from waxes produced by plants.

They have the same ratio of carbon-14 to carbon-12 as the atmosphere, and this same ratio is then carried up the food chain all the way to apex predators, like sharks.

But when gas exchange is stopped, be it in a particular part of the body like in deposits in bones and teeth, or when the entire organism dies, the ratio of carbon-14 to carbon-12 begins to decrease.

The pathway from the plant to the molecule may have been indirect or lengthy, involving multiple physical, chemical, and biological processes.