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The limitations of radiometric dating can be split into two general categories, analytical limitations and natural limitations.Analytical limitations encompass the limitations of the machinery that is being used to date a material.Such contamination can occur if a sample is exposed to carbon compounds in exhaust gasses produced by.In addition, any argon that existed prior to the last time the rock was molten will have been driven off by the intense heat.These energy charged electrons progressively accumulate over time.When a sample is heated to high temperatures in a laboratory, the trapped electrons are released and return to their normal positions in their atoms.The methods that are used depend on the presumed age of the site from which they were excavated.For instance, if a site is believed to be over 100,000 years old, dendrochronology and radiocarbon dating could not be used.

This technique bombards the sample, slowly drawing material out and then sending it through to an ion counter.decay or the rate of other cumulative changes in atoms resulting from radioactivity. The various isotopes of the same element differ in terms of atomic mass but have the same atomic number..One half-life is the amount of time required for of the original atoms in a sample to decay.As a result, there is a changing ratio of carbon-14 to the more atomically stable carbon-12 involves actually counting individual carbon-14 atoms.This allows the dating of much older and smaller samples but at a far higher cost.

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