How do we know radiometric dating is accurate

Radiometric dating is the method for establishing the age of objects by measuring the levels of radioisotopes in the sample. It decays to nitrogen 14 with a half life of 5730 years. Carbon 14 is created by cosmic rays in the upper atmosphere.The coral record verifies that radiometric methods are accurate. For the purposes of assessing accuracy, each of the methods is assumed to be applied in accordance with the established methods and technology.By analogy, a stop watch will not keep accurate time if it is not wound, if it is not in good repair, or if the operator forgets to press the button.Methods are precise insofar as they are properly used.

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Results from different techniques, often measured in rival labs, continually confirm each other.

Since then, geologists have made many tens of thousands of radiometric age determinations, and they have refined the earlier estimates.

A key point is that it is no longer necessary simply to accept one chemical determination of a rock's age.

There are three reasons why radiometric data is known to be accurate: 1.

It depends upon radioactive decay, which is known to be extremely stable, not influenced my chemical processes, and which can be measured quite accurately.

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