Mabd, yep there is an awful lot of work that goes into getting accurate dates out of various radio-isotope dating methods. Mostly you will have been involved with Carbon dating if you are doing Archeaology and that has a different whole fun kettle of worms you have to worry about.
I deal with people who work on that on a daily basis and get to hear their moaning about various clients who just don't quite grasp the limits of the techniques.
|THAT|-fred
'fred is not dead, fred is resurrected!'