Re: carbon dating

Bruce L Grubb (
Fri, 06 Dec 1996 07:23:55 -0700

In article <>, wrote:

> I must admit I know very little about science, but I figured if I had a
> science related question, this would be the place to post it.
> Where can I find information about carbon dating--especially as related
> to the age of the earth or of life? In particular how do we find the
> ages of dinosaurs or other animals that became extinct before the
> existence of man or the first records were kept?

This does not involve carbon dating. Carbon dating is useful only to about
100,000 BP. The Radiometric dating that is used for the eras above is
Potassium-Argon, Uranium-lead, Thorium-lead, and Ruibidium-Strontium.

Radiocarbon is useful to archaeologists but is largely useless to