Icefall

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icefall

[′īs ‚fȯl]
(hydrology)
That portion of a glacier where a sudden steepening of descent causes a chaotic breaking up of the ice. Also known as ice cascade.

Icefall

 

the section of a glacier that is broken by deep fissures into separate blocks of varying shape and size. Icefalls form on the site of steep declivities in the longitudinal profile of the glacier bed, where there is an increase in the rate of the ice’s movement, resulting in crevasses.

References in periodicals archive ?
But above that was another icefall that would have to be negotiated before they could reach 'The Great Shelf', which can be seen so prominently in the famous view from Darjeeling.
To have time to make the summit, climbers have to cross the icefalls in the dark, before the sun warms the ice, causing it to shift.
As we climb to the top of a compression ridge, the clouds lift a little--enough so that we can see several miles up the convoluted, moraine-striped glacier to Stairway Icefall.
The strenuous journey in November 2015 will take in stunning national parks, mountain ridges, beautiful lakes, amazing icefalls and stunning views of the snow-capped Andes.
TV weather presenter Sian Lloyd has already signed up for the strenuous journey, which will take in stunning national parks, mountain ridges, beautiful lakes, amazing icefalls and stunning views of the snow-capped Andes.