What is the limitation of potassiumargon dating dating sites danmark Høje-Taastrup

Posted by / 04-Jun-2017 19:52

The potassium-argon age of some meteorites is as old as 4,500,000,000 years, and volcanic rocks as young as 20,000 years old have been measured by this method.

(If you like, we can discuss how to improve your question in Physics Chat.) The main thing is that it's consistent with other forms of dating.We also assume that the sample died with the same ratio of C12/C14 as in the atmosphere, this may not be true if they got the carbon in their diet from geological sources, eg by eating a lot of deep sea fish. This dating method is based upon the decay of radioactive potassium-40 to radioactive argon-40 in minerals and rocks; potassium-40 also decays to calcium-40.Radiometric dating is very reliable in theory - the decay of radioactive materials is very-very predictable.But like any other bit of experimental physics "the difference between practice and theory is small in theory but large in practice." It's especially tricky for Carbon14 dating (which most recent stuff relies on).

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Radiometric dating, for instance, will say that deeper levels of sediment are older than shallower levels of sediment.

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