This is because radiocarbon decays very rapidly compared to other radioactive elements such as uranium.So after, say, a theoretical 100,000 years at the most the amount of radiocarbon left in the wood would not be detectable anymore.However, I felt this wood probably would give a radiocarbon ‘date’, because I was convinced that this sandstone was the result of residual post-Flood catastrophism, just a few thousand years ago.
Some may have mistaken this to mean that the sample had been dated to 20,000 radiocarbon years." Thus it seems a likely possibility that the sample could have been too old to accurately date wuth whatever methods the lab used 30 years ago.I even begged them to check these things for themselves and not to just take my word they wouldn't even do that.I will not get into a heated debate about The Word of God so I change the subject after a while.This rock is classified as belonging to the Upper Tertiary geological system.
Evolutionary belief therefore maintains that this rock is around 20 million years old.
If so, one might safely ignore it, at least until someone decides to study it further. But note, all these possibilities are just guesses by people who were not there and who do not know what the real age is.