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The formation of seracs
Seracs are large blocks of ice formed by the fracturing of a glacier. This fracturing is linked to the exceeding of the plasticity threshold of the ice combined with a break in the slope of the underlying rock or the presence of a cliff. Seracs form when the quantity of surface crevasses increases at the level of the break in slope of a glacier, giving rise to the risk of a serac fall or avalanche
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