The coastal plain of NC is essentially a huge delta east of the “fall line,” which runs NNE to SSW in the vicinity of Raleigh, roughly parallel to the general coastline over 100 miles away. The only known deposits of note that I’m aware would be phosphate ore, and there’s a great deal of it in the areas in question. There are phosphate mining operations in many coastal NC counties.
So that kills the theory of inductive resonance.
How would fire, phosphates, and peat bogs leave great big holes in the ground? Across half a state?
It'll take me a few minutes to cogitate around that one, but I'm sure I will. Mama always said I could tear up an iron anvil with a rubber mallet.
The day I got ahold of LOX and liquid nitrogen, I proved her right.
/johnny
I agree