Nizhnevartovsk state University - Official site
Unforgettable summer practice Shapshinskaya the tract. From 13 to 22 June, the students of 1 course of a speciality "Biology" interned in the territory of Shapshinskaya tracts of the natural…

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Russian businessman ruined a unique lake in the Crimea, environmentalists are sounding the alarm - the Latest news of Ukraine and the world 2015, news of today
The owner of the hotel in Primorskiy village (near Feodosiya) is ruining the lake with mud Ajigol. Businessman illegally blocked his dam and dug a drainage trench that was a…

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Landmarks of Abkhazia
High mountains and Sunny shores of Abkhazia hide many treasures: castles, historical monuments and unique natural sites. In whatever city you are staying, everywhere can explore the beautiful parks and…

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natural

WHAT is the largest freshwater lake in the world

The largest reservoir of fresh water on planet Earth

Lake Baikal is not only the most voluminous lake. It is the deepest and one of the oldest. Baikal is the deepest cleft on the surface of the planet. This cleft is the most complex and least understood fault zone of the earth’s crust. The depth of the lake on average is 745 meters and the deepest point reaches 1637 meters. The lake stretches for 636 km, while its width is 80 km from the Surface of the lake is 31 000 km2.

This ancient lake is formed 20-30 million years ago by tectonic shifts. Fresh and clean water in the lake is maintained by two factors. First, it is home to the endemic Baikal epishura – microscopic crustacean that filters a huge number of algae and bacteria. In addition, most of the watershed of lake Baikal supported by craggy rocks. Thus, the flow of water towards the lake is almost in contact with the sediment and minerals. This oligotrophic lake, and its water has an excellent drinking quality.

Flows into the lake, 365 rivers, including the Yenisei – the largest river of Siberia. The lake contains 20% of fresh water on the Earth’s surface. The volume of fresh water in the lake is 26 000 cubic kilometers. The ancient cistern is one of the cleanest in the world. Water extracted from the depths of the lake, you can drink Continue reading

Hydrology lakes – Statopedia

5.1 Classification and water balance of lakes

Lakes are referred to as water-filled basins or depressions of the earth’s surface, which has no direct connection with the sea (ocean) and characterized by slow water exchange.

In the development of the lake can be divided in three phases :

the lake basin remains almost unchanged, the existing deposits have not have a noticeable impact on his couch;

– formed coastal shoal, there is a Delta at the confluence of the rivers develop water vegetation;

– roughness of the smoothed basin of sedimentation due to products of destruction of coast and slopes of the deltas extends onshore shallow, reduced depth, vegetation covers almost the entire surface of the lake.

In the future it turns into a small pond with the widespread development of vegetation, of which the underwater part goes to the surface and turns the lake into a swamp.

The origin of the lakes can be dammed, hollows and mixed.

Dammed lakes are formed due to the overlap of the river valley by a cave with sediment, the detrital material of the retreating glacier.

Hollow lake, depending on the circumstances and causes of the education basin are tectonic, volcanic, deflationary, glacial, karst and thermokarst.

Lakes in tectonic basins were formed by tectonic Continue reading

Trip to lake Seliger. Attempt fishing and local
What is the CATCH? The CATCH is that you wanted to catch and caught, finally. (The catch is the cold that you caught, not to go to school? – Hardly.…

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Geography of Switzerland
Elegant cities and famous resorts, mountains, pristine lakes and picturesque slopes of the green hills and the unique culture of Switzerland. The geographical position and climatic conditions of the country.…

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