Criticism of carbon 14 dating
Age estimates can be cross-tested by using different isotope pairs.Results from different techniques, often measured in rival labs, continually confirm each other.Sediment columns giving an unbroken history for more than 25,000 years have been identified in about 30 locations around the world.Coral growth patterns are also seasonal and provide a long independent date history. The dates obtained by different radiometric isotope pairs cross-check each other.
An error of 90% would, for example, still disprove Young Earth Creationism.
There are about two dozen decay pairs used for dating.
Uranium 235 decay to lead has a half-life of 713 million years, so it is well suited to dating the universe.
Anyone questioning the accuracy of radiometric methods is obliged to explain why the cross-checks to sediments, coral growth, tree rings, and other isotope pairs all have the same errors.
Why would an error in radiometric dating correspond to errors in the other methods so that they all track?
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other isotope pairs cover intermediate time periods between the spans for carbon 14 and uranium.