Non isotopic dating
First assumption issue: That a solid material matrix near the surface of the earth would remain a closed system over millions of years strains plausibility.Hydrothermal activity, ionic transport, partial melting, and nuclear reactions resulting from cosmic ray bombardment are all factors that could change elemental distributions in a rock formation over time.Models are essentially the modern equivalent of a hypothesis and are subject to the criteria for evaluating any scientific hypothesis.Do the isochron results or predictions match observation and experimental data?
If Scripture is inaccurate in this, then how can it be trusted in anything else?
Do the assumptions that constitute essential elements of the model make rational sense?
If the answer to either of these equations is no, then scientists must reject the model and generate a new one.
But this presents a problem for any given material since no one can go back in time and measure that number.
Decay constants for radioisotopes typically used in deep-time dating range from 0.0654 × 10 by setting it equal to the number of daughter nuclei plus the number of parent nuclei present at the current time, assuming no daughter nuclei were present at the beginning of the decay sequence.