Vitrified Forts
Thursday, December 30th, 2010Vitrified forts or, forts where the rock was heated, so much so, that it turned into glass or, had “vitrified”. There seem to be quite a few of these forts.
Robert M. Schoch has an interesting angle on the subject.
Plasma hitting the surface of Earth could heat and fuse rock, incinerate flammable materials, melt ice [...]