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An outwash plain is a relatively flat region at the terminus of a glacier where glacial sediments are deposited by meltwater outwash. The sediment is distally sorted, the larger sediment being deposited closer to the margin of the glacier and finer-grained sediment carried further along by the meltwater streams. [41]
Esker: Built up bed of a subglacial stream, forming small, string-like mounds left behind as a glacier retreats. [1] [3] Kame: Irregularly shaped mound of sediments previously deposited by falling into an opening of glacial ice. Moraine: Built up mound of glacial till along a spot on the glacier. Feature can be terminal (at the end of a glacier ...
The sediments carried by a glacier will eventually be deposited some distance down-ice from its source. This takes place in the ablation zone, which is the part of the glacier where the rate of ablation (removal of ice by evaporation, melting, or other processes) exceeds the rate of accumulation of new ice from snowfall. As ice is removed ...
The sediments that are directly deposited from melting ice of the glacier is both unsorted and unstratified. [5] These sediments are also known as till and it can be composed of variable sized rock fragments ranging from fine grains up to boulders called erratic. The wide range of particle size is the characteristic that differentiates ice ...
Glacial outwash sediment, Knud Rasmussen Glacier, Greenland. An outwash fan is a fan-shaped body of sediments deposited by braided streams from a melting glacier.Sediment locked within the ice of the glacier gets transported by the streams of meltwater, and deposits on the outwash plain, at the terminus of the glacier.
A kettle (also known as a kettle hole, kettlehole, or pothole) is a depression or hole in an outwash plain formed by retreating glaciers or draining floodwaters. The kettles are formed as a result of blocks of dead ice left behind by retreating glaciers, which become surrounded by sediment deposited by meltwater streams as there is increased ...
The accumulation of these rocks and sediment together form what is called glacial till when deposited. Push moraines are formed when a glacier retreats from a previously deposited terminal moraine, only to push proglacial sediment or till into an existing terminal moraine. This process can make the existing terminal moraine far larger than its ...
A glacier stream is a channelized area that is formed by a glacier in which liquid water accumulates and flows. [1] Glacial streams are also commonly referred to as "glacier stream" or/and "glacial meltwater stream". The movement of the water is influenced and directed by gravity and the melting of ice. [1]