Indeed. This is very interesting stuff.
For the moment, I will restrain my enthusiasm, at least until I seem
some hard dates; politics, for the moment, seem to preclude this.
> http://www.lpi.usra.edu/meetings/metsoc2001/pdf/5196.pdf
This link seems to not load successfully.
> http://www.archaeology.org/online/features/godzilla/
This link is interesting. Catastrophism is back in fashion, but in a
modified form. Uniformitarianism is now punctuated equilibrium. Over
the centuries, most natural disasters are rather local in their
consequences; now and again, tho', we get something big. The Euxine
cataclysm was big. If this Tigris-Euphrates confluence impact event
was as big as the initial reports suggest, then we have ourselves a
whopping big smoking gun for something that disrupted civilization.
Interesting indeed.