Nice to know a computer scientist feels qualified to comment he is ignorant of. Do you wonder what more capable folks might think? Here are a few you can start with:
1 Radiometric Dating: How do we determine the age of a rock?
http://www.dc.peachnet.edu/~pgore/geology/geo102/radio.htm
2 Museum Victoria: Radiometric Dating
http://www.museum.vic.gov.au/scidiscovery/radioactivity/radio_dating.asp
3 University of Central Arkansas: Radiometric Dating
http://faculty.uca.edu/~benw/sci3410/pres/radiometrics/
4 Tulane University: Radiometric Dating
http://www.tulane.edu/~sanelson/eens211/radiometric_dating.htm
5 Marine Reservoir Correction Database
http://www.qub.ac.uk/arcpal/marine/
6 Scottish Universities Research and Reactor Centre
http://www.gla.ac.uk/centres/surrc/index.html
7 Countertop Chemistry Experiment 32: Radioactive Decay of Candium
http://www.science-house.org/learn/CountertopChem/exp32.html
8 Nuclear Chemistry: Radioactive Decay
http://www.shodor.org/unchem/advanced/nuc/