The oldest lake in the world
• The oldest lake in the world
Most of the lakes, particularly glacial origin, "live" long - about 10-15 thousand years, and then the swamp. But there is a real prehistoric waters - they were from ancient seas and were due to tectonic faults and changes.
. The largest lake in Antarctica hidden under ice sheet thickness of about 4,000 m Its depth - of more than 1200 meters. The pond was named in honor of the Soviet scientific Vostok station, which operates in the area since 1957. It is Russian polar explorers and confirmed the existence of the lake in 1996, although the first suspicion of subglacial lakes in Antarctica, scientists have sounded in the 19th century.
It is believed that the lake was clogged with ice for at least 500,000 years ago, and appeared much earlier. Temperature therein reaches 10 degrees Celsius, and the oxygen content is 50 times higher than usual fresh water.
The Caspian Sea
The Caspian Sea is considered the salt lake, because it has no messages to other seas or oceans. At the world's largest enclosed body of water oceanic origin.
His slow formation started about 13 million years ago, formed the Alps separated Sarmatian Sea to the Mediterranean. The man lived on the shores of the Caspian Sea for 75 thousand years ago.
The lake is located in the Andes on the border of Peru and Bolivia. It is the largest reserves of fresh water on the continent. In the language of Quechua Cocoa means "rock", and Titi - "cougar".
One hundred million years ago, Lake Titicaca was almost 4 km lower than now, and it was the bay. Lake still populated mainly marine fish, and on slopes traces of the sea.
The deepest lake in the world has a tectonic origin. It exists in the breaking of the Earth's crust at least 35 million years.
Scientists believe that this fault Europe and Asia ever be divided into two separate continent.
One of the African Great Lakes is located on the border between Rwanda and the Democratic Republic of the Congo. The basin of the lake of tectonic origin located in the rift valley, which gradually expands and causes volcanic activity.
Because of this depth of the lake is growing and has already reached the level of 480 meters. This is the 16th lake in the world in depth.