Perito Moreno: A fragile arch of ice at the tip of a glacier in southern Argentina spectacularly collapsed into the water on Thursday, a natural display that happens just once every several years.
Thousands of tourists had gathered at the Perito Moreno glacier hoping to see the collapse of the pale blue bridge that had formed between the glacier and the shore of Argentino lake.
Such arches form roughly every two to four years, when the glacier forms a dam of ice that cuts off the flow of water around it into the lake — until the water breaks through, opening up a steadily wider tunnel that eventually becomes a narrow arch… and then collapses. — AFP
Thousands of tourists had gathered at the Perito Moreno glacier hoping to see the collapse of the pale blue bridge that had formed between the glacier and the shore of Argentino lake.
Such arches form roughly every two to four years, when the glacier forms a dam of ice that cuts off the flow of water around it into the lake — until the water breaks through, opening up a steadily wider tunnel that eventually becomes a narrow arch… and then collapses. — AFP
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