Hi TB,
Welcome back!
The radiometric problem isn't confined to Helium Diffusion. Your model must also explain, in a non-
ad hoc fashion, the young-to-old nature of the geologic column as regards various sample types & methods as you descend the column.
Mark
This message has been edited by mark24, 06-15-2005 07:00 PM
There are 10 kinds of people in this world; those that understand binary, & those that don't