Problems with carbon dating accuracy
In this way, calibration tables have been developed that eliminate the discrepancy.Despite its usefulness, radiocarbon dating has a number of limitations.
It is sometimes thought possible to extend the dating range a few half-lives, so one occasionally sees dates as old as 70,000 years or more.
In most cases, the three methods produced similar results.
Surprisingly, in at least one case the date range given by There may be other examples of systematic variation in isotope decay rates.
It cannot be applied to inorganic material such as stone tools or ceramic pottery.
The technique is based on measuring the ratio of two isotopes of carbon.