In the far, distant regions of my memory, there lies an ancient tale of some Discovery Channel documentary that displayed some researchers trying to figure out whether it was the Black Sea that gained some measure of water in a short period of time, both pre-dating the flood story AND some unrecallable tribe that dwelled in the middle of a region that's linguistically different.
Essentially they were trying to show that this tribe fled from the flood and brought their language into a region that was significantly different (thus segregating them from everyone else) which, if I recall, was somewhere near the middle east.
They ended up testing something about the groundwork under water in the black sea and found A) evidence of a period of dryness surrounding the large middle area of the sea (ie an ancient shoreline) and B) archeological artifacts underwater. So the conclusion was that the theory has evidence backing it up now.
Really neat stuff.
Edit: Google is my friend.
http://www.nationalgeographic.com/bl.../ax/frame.html