Short-lived isotopes Th-230 and U-236 exist on the moon (Talk.Origins)
- Th-230 and U-236 exist on the moon. But these isotopes are so short-lived that we would not expect any still to be around if the moon were billions of years old.
- Wysong, R. L., 1976. The Creation-Evolution Controversy, Midland, MI: Inquiry Press, pp. 177-178.
The CreationWiki agrees with the response of Talk Origins. Given the fact the the source is dated as from 1976 this is probably an outdated claim. There do not seem to be any recent uses of this argument.