It does not answer the overall question. Here is one such reference, although this is to a mineral that does not exclude argon: Many sedimentary uranium ores are not. We will have to restrict ourselves to places where Gi is exposed, to avoid having to dig deep within the earth. The Cambrian period is conventionally assumed to have begun about million years ago. Since the bulk of K-Ar dates are generally accepted as correct, one may say that certain minerals are reliable if they tend to give similar dates, and unreliable otherwise. The same applies to intrusions. This agreement of different methods is taken as evidence for a correlation between methods on the geologic column. Of 12 dates reported the youngest was million years and the oldest was 2. It's also possible for other matter to be incorporated into lava as it rises, without being thoroughly melted, and this matter may inherit all of its old correlated radiometric dates.
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In any event, I don't see how the lava in the center of the Atlantic could have a young age in the conventional view, since it would have cooled rapidly under a lot of water, and would have retained its argon, making it look old. This is formed when lava is sticky and bubbles of gas in it explode. Rubidium decays to strontium.
It has been suggested that free neutrons could transform Pb first to Pb and then to Pb, thus tending to reset the clocks and throw thorium-lead and uranium-lead clocks completely off, even to the point of wiping out geological time.