So the C14 is not produced by atmospheric interaction with solar radiation- Nick made a pretty good case which you did not refute, but instead pointed to the direct action of radiation on the regolith.

But your contention is that:" The detailed physics of the nuclear chemistry in this case are extremely important, and everyone here keeps forgetting exactly how massive the radiation load is which Mars recieves due to its relative lack of magnetosphere.

For C14 production, take a good look a the atom bomb effect in the recalibration of radiocarbon dates, and the production mechanism set out there."

So, in short, your contention is that C14 production is possible from solar radiation interacting directly with regolith. I have no comment on this point, as it is not my field.

So lets grant that point. So to continue, then,

you say:"The C14 disintegrated during the millions of years it took the SNCs to travel from Mars to the Earth. "

This is in response to the lack of lethal radioactivity in Mars-origin masses found on earth.

So, you basic contention is that Mars, lacking much of a magnetosphere and a thick atmosphere is radioative, basically, due to solar radiation. While this chunk of Mars, floating in space with NO atmosphere and NO magnetosphere exhibits a decline in radiation.

I think you are missing the point, quite drastically, and I have little deep knowledge of subatomic physics, geophysics or etc... Your claims are false on basic logical identity.

So you have no evidence of C14 isotopes being to prevelant on mars to support any life, but persist in arguing that this is the case.

What are your credentials again?

Davin L.