[TXnMA]

I must admit that I find the possible connection between the deposits of nanodiamonds and magnetic microspherules and

the Carolina Bays

and -- possibly -- a sudden decline of Clovis culture -- to be intriguing.

[blam]

"I must admit that I find the possible connection between the deposits of nanodiamonds and magnetic microspherules and the Carolina Bays and -- possibly -- a sudden decline of Clovis culture -- to be intriguing."

The Cycle of Cosmic Catastrophes: How a Stone-Age Comet Changed the Course of World Culture

One of the authors in this book explained that the Carolina Bays may have been formed by massive chunks of ice crashing back to earth after having been blasted by a comet/asteroid/etc.