Problems with radioisotope dating play dating simulation game online
Also, many rock units have been radioisotopically dated by only one or two radioisotopic systems, whereas we need to see if there are patterns in the results when rock units are 'dated' by all the major radioisotopic systems.
This is where money has needed to be spent, but this procedure is obtaining original results that are proving invaluable in developing a model and an understanding of the radioisotopic data within our Biblical framework for earth history.
I emailed you about this topic a year or two ago, and I've since taken a class in radioisotope chemistry at UCI.
As a result I was using some of my texts to examine the decay of Americium 241 and noted the naturally occurring decay chains for U235, U238 and Th232, as well as the fully decayed chain for Pu241.
Firstly, supernovae have not added a significant amount of new elements to putative star-forming clouds.
If they had, the ratio would be different in various stars.
The need to spend money on analyses of rock samples by reputable laboratories is to ensure that we have data to model that are free of any bias that may have occurred in laboratories where the 'target ages' are known before the analyses.
The conclusion is that neutron induced reactions in ores, though minimal now, would have been even more minimal with higher light speed, so no chain reaction would occur.
For a fuller discussion, refer to the original article.
This also made for rapid heating of the earth interior (cool to start with).
Furthermore, there is evidence that the main radioactive elements were concentrated in a layer low in the mantle and came to the surface progressively after that.