Fluvioglacial landform

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Fluvioglacial landforms are landforms moulded by glacial meltwater. This discharge of glacial streams, both supraglacial and subglacial, is higher in the warmer summer months. As the water often flows under pressure, it has a high velocity and is very turbulent. This high velocity enables it to transport a large amount of material which would not normally be transported in a regular stream of similar size. As this material is transported it makes contact with the underside of a glacier and erodes vertically by abrasion. This erosion creates subglacial valleys. When there is a decrease in discharge of the glacial steams, deposition occurs, and is responsible for large groupings of landforms in glacial areas.