I have seen a couple of TV programs about the Dardanelles, the Bosphorus and the Great Flood. There is quite a bit of evidence that the Biblical flood legend came from those events:

see these...

http://gsa.confex.com/gsa/2003AM/finalprogram/abstract_63243.htm

http://www.idrc.ca/en/ev-85557-201-1-DO_TOPIC.html

http://www.amazon.com/Noahs-Flood-Scientific-Discoveries-Changed/dp/product-description/0684859203