Isotope dating problems
He is just a scientist who is doing his job and he doesn’t seem to have any particular axe to grind.
He was invited to our meeting as a guest speaker solely for his expertise on radioactive dating. He often goes on field trials dating rocks in various regions of the Australian outback.
However, the biblical scenario suggests magmas crystallized quickly, and anticipates non-equilibrium conditions, and this would affect the way lead would have been incorporated in the zircon crystals.
Geologists now recognize that granites formed very rapidly, which is consistent with the biblical scenario.
The other point that Justin made was that the dating for Uranium/Lead can be derived from 3 sources: U238 decay, U235 decay and the lead isotope ratio.
Nor was there discussion about how well the experimental conditions that have been mentioned would have represented the situation within crystallizing magmas.
Uniformitarians assume magmas crystallized slowly over millions of years under conditions of thermodynamic equilibrium.
Any age calculated is based on multiple unprovable assumptions to match the long-age worldview.
Kevin Rogers submitted a comment to that article (reproduced below, edited to focus on substantive issues), to which Dr Jim Mason replies.
I did not discuss this technique because it seems a pretty straightforward combination of various parent-daughter relationships.