Usmc radioactive dating
I don't know what the exact percentage is. It is often mentioned that different methods agree on the K-T boundary, dated at about 65 million years ago.
Some Christians make it sound like there is a lot of disagreement, but this is not the case. These half-lives completely agree with the half-lives measured from decays occurring today.
This involves inspection of a polished slice of a material to determine the density of "track" markings left in it by the spontaneous fission of uranium impurities. Gay dating site kenya continuous count of layers exists back as far asyears.
We can also say that certain formations tend to give reliable dates and others do not, depending on whether the dates agree with K-Ar dates.