Why is it that creationists think that all dating is carbon dating? Yes, carbon dating needs to be calibrated. But Uranium dating does not. Neither does Rb-Sr dating. And *all* dates before about 100,000 years are something other than carbon dating.Dr. Alan Zindler, a professor of geology at Columbia University who is a member of the Lamont-Doherty research group, said age estimates using the carbon dating and uranium-thorium dating differed only slightly for the period from 9,000 years ago to the present.''But at earlier times, the carbon dates were substantially younger than the dates we estimated by uranium-thorium analysis,'' he said.''The largest deviation, 3,500 years, was obtained for samples that are about 20,000 years old.''
One reason the group believes the uranium-thorium estimates to be more accurate than carbon dating is that they produce better matches between known changes in the Earth's orbit and changes in global glaciation.
So once again, the Bible is not even close.