Brief communication: Collapse of 4 Mm 3 of ice from a cirque glacier in the Central Andes of Argentina

Falaschi, Daniel; Kääb, Andreas; Paul, Frank; Tadono, Takeo; Rivera, Juan Antonio; Lenzano, Luis Eduardo

Among glacier instabilities, collapses of large parts of low-angle glaciers are a striking, exceptional phenomenon. So far, merely the 2002 collapse of Kolka Glacier in the Caucasus Mountains and the 2016 twin detachments of the Aru glaciers in western Tibet have been well documented. Here we report on the previously unnoticed collapse of an unnamed cirque glacier in the Central Andes of Argentina in March 2007. Although of much smaller ice volume, this inline-formula M3inlinescrollmathml normal 4.2 ± normal 0.6 × normal 10 normal 6 72pt14ptsvg-formulamathimg1c19d3aeed652385e807259f4232b990 tc-13-997-2019-ie00001.svg72pt14pttc-13-997-2019-ie00001.png  minline-formula3 collapse in the Andes is similar to the Caucasus and Tibet ones in that the resulting ice avalanche travelled a total distance of inline-formula∼2 km over a surprisingly low angle of reach (inline-formula∼5inline-formula).

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Falaschi, Daniel / Kääb, Andreas / Paul, Frank / et al: Brief communication: Collapse of 4 Mm3 of ice from a cirque glacier in the Central Andes of Argentina. 2019. Copernicus Publications.

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