Answers to radiometric dating assignment
This is at first glance surprising for long-agers, because of the ease with which one would expect helium (with its tiny, light, unreactive atoms) to escape from the spaces within the crystal structure.There should surely be hardly any left, because with such a slow buildup, it should be seeping out continually and not accumulating.For more on this, see Ai G’s radiometric dating FAQ page at The point is that radiometric dating is not the sure thing that it has been made out to be over the last century.
Uranium-238 (U238), for example, is an unstable radioactive isotope which decays into Lead-206 (Pb206) naturally over time (it goes through 13 unstable intermediate stages before it finally stabilizes into Pb206).
There still remains a lot of research to do, but, as it currently stands, the accuracy of radiometric dating remains ambiguously suspect at best.
Related Topics: Is carbon dating a reliable method for determining the age of things?
It’s never used for non-organic samples, and almost never even attempted if the sample is thought to be much older than about 50,000 years.
It furnishes some good evidences that creationists often use.