I recommend
http://asa.calvin.edu/ASA/resources/Wiens.html
as an excellent resource on radiometric dating.
It includes a brief section on radiation halos. (The talk.origins
website has references to still more info on radiation halos.)
On Thu, 16 Nov 2000, Wayne Shelton wrote:
> Will someone please explain the fluoride halos appearing in
> granite. They were discussed as an evidence that the earth
> was formed in one hour on a program just airing on the
> Trinity Network. It seems to me that the evidence might be
> true for that particular rock perhaps, but the earth?
> (From an entomologist , not a geologist)
> Wayne Shelton
>
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