Radioactive dating

Andrew Francis Grichting (
Wed, 4 May 94 02:45:39 GMT

Hi Everybody,
Question time! I have to write a paper on the methods of radio-
active dating, particularly the "newer" techniques. Can any one out there
involved in field work, using the dating techniques of radiocalcium or
Obsidian Hydration. Failing that would anyone (please?) tell me how
obsidian hydration worked in the case of the Peking skull?
Thank You
Andrew Grichting