Yes, a link is powerful evidence..
Well, it is sort of difficult to present the physical evidence on a discussion site. What are you wanting?
We can, if you want, go into the details of radioactivity, how it is and is not affected by external events, the physical basis for it, etc. We can also discuss the *relative* dating methods based on the strata and compare them to the *absolute* dating methods based on radioactive decay.
So, precisely where do you think the dates are based on circular reasoning?