There are also other factors that can change the ratios such as past sea levels.
Where did this come from? What other factors? How do past sea levels change the C-14, c-12 ratio?
You criticize the thought that sea levels can alter c-14 constants. I know that I have a lot of study to do, but so do you. The ocean is earths greatest carbon 12 reservior. Altering It's volume can alter the syncronization of our radioactive clock. This issue goes back as far as the uppsalla conference. I'm suprised you haven't stumbled upon it by now.
How about fluctuations in earths magnetic field. As the field intensifies, fewer cosmic rays penetrate atmosphere, lowering c-14 production. As the field weakens the opposite occurs - more c-14. I'm quite sure all these subjects have been discussed on evc.
Ned, follow the thread back to 57. See that I was merely responding to something totally different than you assumed -- lighten your load.
rickrose