It is indeed very interesting. In some biblical scholarship the ‘world’ can be interpreted to mean the extent of the settlements by the sons of Adam. That may be no more than around the Med and Black Seas and a catastrophic event such as inundation by the Med breaking through to create the Black Sea region could have been the ‘great flood’, but it would need to be accompanied by an inundation from the Atlantic into the Med first, then bursting through to inundated the ‘valley’ where the Black Sea now is.
endlessly fascinating subject:
“...Sediment samples from below the deep seafloor of the Mediterranean Sea, which include evaporite minerals, soils, and fossil plants, show that about 5.9 million years ago in the late Miocene period the precursor of the modern Strait of Gibraltar closed tight, and the Mediterranean Sea evaporated into a deep dry basin with a bottom at some places 2 to 3 miles (3.2 to 4.9 km) below the world ocean level.[5] Even now the Mediterranean is saltier than the North Atlantic because of its near isolation by the Straits of Gibraltar and its high rate of evaporation.
If the Strait of Gibraltar closes again, which is likely to happen in the near geological future (though extremely distant on a human time scale), the Mediterranean would evaporate completely in about a thousand years.[6]...
http://en.wikipedia.org/?title=Messinian_Salinity_Crisis