The chemical binding of the grains takes how long? Why should it take millions of years? A hundred or much less ought to do it quite nicely.
And we are back to. Godidit.
Not sure why you continue to come up with foolish hypotheses(no you do not have any theories), when all your arguments come down godidit. It would save you a lot of time.
Facts don't lie or have an agenda. Facts are just facts
"God did it" is not an argument. It is an excuse for intellectual laziness.