OK, Brother Hrolf the weird is ready to step into the fray. Although I am not a practicing archaeologist, I still try to keep up with my field. I recently finished a book entitled Before the Flood by Ian Wilson which makes a reasonably good argument for the following:
The Dardenalles (sp?) strait (around Constantinople/Byzantium) was closed at the end of the last ice age. The current Black Sea was much lower than it is today. It was very, very fertile ground and there were lots of neolithic settlements in the area. Water levels began to rise after the ice age (the ice melted) and created pressure on the “dam” which held the Mediterranean apart from the Black Sea. About 8,000 BC something happened which caused the “dam” or “plug” to collapse. In poured the Mediterranean massively flooding what was theretofore habitable ground. The water rise was relentless but it would have given the population sufficient time to flee. These populations fled into Anatolia (Turkey), the fertile crescent (Iraq) and down into the Holy Land. Something this massive would have survived in folk memory - read the Epic of Gilgamesh for another version of Noah’s flood. Deucalion’s flood is told in Greek mythology.
On the other hand, many Meso-american cultures have stories of a great flood as well. Rand, Ovid is retelling Deucalion.
Obviously something happened. Heinrich Schlieman believed enough of one “myth” that he went out and found Troy. I think the explosion of the island of Santorini, the resulting tsunami, and the collapse of Minoan civilization explains Atlantis.
The important part about Noah is not whether it happened according to scripture but that God added one more chapter to His plan of salvation. It was one more covenant with man leading up to Our Lord.