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Seracs, New Zealand

Visual Glossary of Glacial Features

Seracs are tall peaks of ice on the surface of a glacier, commonly forming where sets of crevasses intersect. (more below)
Sugarloaf shapes
Photo courtesy Nick Bramhall of Flickr under Creative Commons license (fair use policy)
Seracs were named by Horace Benedict de Saussure in 1787 (who also named roches moutonnées) for their resemblance to the soft sérac cheeses made in the Alps. This serac field is on Franz Josef Glacier in New Zealand. Seracs form by a combination of melting, direct evaporation or sublimation, and erosion by wind.

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