Greater Caucasus Greater Caucasus Greater Caucasus (, Бөјүк Гафгаз, بيوک قافقاز; , "Didi K’avk’asioni"; , "Bolshoy Kavkaz", sometimes translated as "Caucasus Major", "Big Caucasus" or "Large Caucasus") is the major mountain range of the Caucasus Mountains. The range stretches for about from west-northwest to east-southeast, between the Taman Peninsula of the Black Sea to the Absheron Peninsula of the Caspian Sea: from the Western Caucasus in the vicinity of Sochi on the northeastern shore of the Black Sea and reaching nearly to Baku on the Caspian. The range is traditionally separated into three parts: In the wetter Western Caucasus, the mountains are
Black Sea deluge hypothesis Sea basin. This hypothesis concerns the occurrence of the last inflow and the primary point of controversy is whether the event was gradual or catastrophic. In 1997, William Ryan, Walter Pitman and their colleagues published their hypothesis that a massive flooding of the Black Sea occurred about 5600 BC through the Bosphorus. Before that date, glacial meltwater had turned the Black and Caspian Seas into vast freshwater lakes draining into the Aegean Sea. As glaciers retreated, some of the rivers emptying into the Black Sea declined in volume and changed course to drain into the North Sea. The levels of