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Why does it detach?
The rupture and detachment of the Perito Moreno Glacier is a natural phenomenon that occurs every two to four years, approximately. The process begins when the glacier, situated in one of the Lago Argentino arms, advances towards the Magellan peninsula covering its drying paths. This cut provokes a considerable rise of the water level, 20 sq mt approximately, that rapidly starts to make a strong pressure on the front of the glacier. This way it starts to fracture itself and then it ends with the detachment of huge blocs of ice.
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