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ARGENTINIEN GLETSCHER PERITO MORENO
View of Glacier Perito Moreno, along the coast of of Lake Argentino's Rico Branch. An ice cloak, or glacial cap, covers this Protected Area of 600,000 hectares. Among the 356 glaciers, the Perito Moreno is the most outstanding one, having a front of 5 km long and a height of over 60 meters above the level of the water. Lake Argentino, in which Perito Moreno Glacier is set, has many branches. Two of them, Sur and Rico, are behind the Magellan¬’s Peninsula and they debouch in the lake through the Tempanos Channel. This amazing natural dam makes the level of the Sur and Rico branches (which still keep getting water, ice and snow), raise their level causing a huge amount of pressure. This pressure eases when the water starts filtering the places where the glacier touches ground and it digs a sort of tunnel underneath the ice. Finally, when this hole gets too big and due to the water pressure, the enormous wall of ice falls apart causing one of the most overwhelming natural phenomenon that can be seen. The fracture of the glacier may last two or three full days. Perito Moreno Glacier so famous around the world, the first fracture registered occurred in 1917. After that, during the 20th century the phenomenon occurred 16 times, the last one being February 17th, 1988. As years passed, and given the fact that most glaciers in the world are in withdrawal, people thought that the Perito Moreno wouldn't close over the Magallanes Peninsula any more. (KEYSTONE/EPA/EFE/Cesar De Luca)
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