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2010/11/01 Elhuyar Zientzia Iturria: Elhuyar aldizkaria
If on Earth there is a known glacier is Perito Moreno. The white river that takes the name of the Argentine explorer of the same name is one of the few that does not recede. The ice is released from the continental ice of Patagonia to the Atlantic and the façade reaches Lake Argentino.
The average daily tour is 2 meters, slightly less in winter and more in summer. It advances uninterruptedly through Lake Argentino, dividing the main part of the lake and its southern branch. A white wall of 50 and 70 meters high leaves the south branch without leakage. The branch continues to collect and accumulate water. On both sides of the lake the difference between water levels can reach 17 meters.
The pressure causes spectacular fractures. The ice cracks and the channels appear, then a tunnel. And finally the roof of the tunnel falls. That's what made Perito known around the world. The last demonstration of nature that surprises thousands of people took place in the southern winter of 2008. You cannot predict when the next break will be, since Perito Moreno's break has no regular cycle.
