Lili, or LeeLee:
I'm putting promotion of this on hold for a bit. You may not be aware that the
newest reference of any of those from
Science in your list is from 1968. I was still an undergrad in that distant era, and I can assure you that chemistry, physics, and the science of radiometric dating have advanced since then. Additionally, this sort of list frequently turns out to be primarily "quote-mines" - a website called "The Evolution Cruncher" is one well-known such "mine." Snippets are dug out of real papers in these "mines," but are chosen to appear to say something very different from what the papers actually said.
Let's work on the isochron thread you openened first. Remind me if I don't get back to this one in a couple of days.
And I have access to
Science back to 1880 when we dig deeper into these.