[tomzz]

Would a flood somehow change radioactive decay rates ?

No, but whatever caused the flood could easily have changed the ratios or regular to radio carbon on the planet. Radiocarbon dating depends on those ratios having always been as they are now.

Likewise having heavy metals near the surface of the Earth due to impact events would mean that dates derived from those metals would be good for the metals and that was all.

[Coyoteman]

Would a flood somehow change radioactive decay rates ?

No, but whatever caused the flood could easily have changed the ratios or regular to radio carbon on the planet. Radiocarbon dating depends on those ratios having always been as they are now.

Have you ever actually done a radiocarbon date, or did you just stay at a Holiday Inn Express last night?

The ratio can be checked through time. This is done by counting individual tree-rings. They use standing dead bristlecone pines in the US, and other species elsewhere. They can then date the individual tree rings and calibrate the curve. And no, they have not always been as they are now. There are slight fluctuations.

They have the curve on bristlecone pines back past 12,600 years now. That means the atmospheric fluctuations are accounted for during that time period (other methods are used for older ages).

The results are still the same as always. No flood. Sorry.

[RS]

"No, but whatever caused the flood could easily have changed the ratios or regular to radio carbon on the planet. "

How so ?

Since I doubt that a soaking in water for 40 days could change decay rates, perhaps you could direct me to a link with a full explanation of this.

In any case, are you convinced that dinosaurs lived in the tens of thousands of years ago ? Perhaps in the hundreds of years ago according to the indians ...