radioncarbon dating doesn't very far beyond 80k years or so if I remember correctly. (radiometric dating is a more general term which englobes radiocardbon I believe plus others who go far back to the million-billions years range)
AbE We should get Baumgardner here and do Great Debate with KBerstche
(I know Baumgardner used to sometimes visits forums like this one when asked to)
Edited by slevesque, : No reason given.