Lake Tanganyika

Lake Tanganyika is the second largest freshwater lake and second deepest after Lake Baikal in Siberia, and also the longest lake in the world.
The lake is located between four countries - Burundi, Democratic Republic of Congo (DRC), Tanzania and Zambia, the DRC (45%) and Tanzania (41%).
Lake Tanganyika is the deepest freshwater lake in Africa and the second in the world with a maximum depth of 1470 meters (4823 ft).
Water flows into the Congo River system and ultimately into the Atlantic Ocean.

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Caspian Sea

Caspian Sea is the largest enclosed body of water on Earth by area, with many classified as the world's largest lake or a sea full. Sea surface has an area of ​​371,000 km2 (143,200 sq mi) (excluding Aylagy Garabogazköl) and volume of 78,200 km3 (18,800 cu mi). It is in the basin endorheic (no flow) and bordered on the north by Russia, on the south by Iran, western Azerbaijan, and eastern Kazakhstan and Turkmenistan.
Fauna in the Caspian basin is very rich: large numbers of sturgeon (the main source of caviar), a variety of rare species of salmon can only be found in this area.
Caspian Sea is very rich in energy resources such as oil and gas deposits, which have been processed since the 10th century. Currently, the oil in the Caspian basin siperkirakan worth $ 12 trillion.

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Lake Vostok

Lake Vostok is the largest of more than 140 subglacial lakes found under the surface of Antarctica. Ice it provides a continuous record of Earth's climate 400,000 years, although the lake water itself may have been isolated for 15 to 25 million years. The lake is named Vostok, 900 tons of Russian corvette Fabian von Bellingshausen Antarctic pioneer.

Average water temperature of -3 ° C and the reason why the lake is still liquid below freezing is the influence of high pressure from the weight of ice on it.
The scientists also discovered that the ice core may be 420,000 years old, which means that the lake is covered for more than 500,000.

Lake Vostok is located beneath Russia's Vostok Station on the bottom surface of the central East Antarctic Ice Sheet, which is at 3488 meters (11,444 feet) above sea level. Surface freshwater lake is about 4,000 m (13,100 feet) below the surface ice, which puts it at approximately 500 m (1,600 feet) below sea level. The lake is divided into two basins by a ridge depth. Liquid water through the ridge is about 200 m (700 ft), compared with about 400 m (1,300 ft) deep in the northern basin and 800 m (2,600 feet) deep south.

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