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- A glacial trough is a valley widened and deepened by the erosive action of a glacier. The valley becomes U-shaped, rather than the V shape of a normal river valley. Glacial troughs tend to have steep, straight sides and flattish valley floors. As an example, the Norwegian Fjords are coastal troughs carved out by glaciers.
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Aug 9, 2024 · Learn about the formation of glacial landforms from corries to troughs, along with examiner tips and worked examples for the AQA GCSE Geography exam.
These are valleys formed by the glacial processes of weathering, erosion and transportation. They have steep sides and flat floors. Unlike V-shaped river valleys, glacial troughs are straight as they have truncated any interlocking spurs which existed prior to glacial advance.
May 28, 2023 · The equatorward region of any meander is called a trough (pronounced like “troff”) and is associated with low pressure or low geopotential height. The poleward portion of a meander is called a ridge, and has high pressure or height.
The formation of a glacial trough involves two processes abrasion and plucking. Abrasion is when pieces of debris in the glacier wear away at the rocks below, a bit like sandpaper. The...
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U – Shaped Valleys or Glacial Troughs. As corrie glaciers leave their source regions and descend down old river valleys they can make huge changes to the landscape. One of the major changes they make is to the V-shaped valleys characteristic of the upper reaches of river valleys.
Jan 1, 2014 · The glacial trough is also called “U” shaped valley, relatively straight, flat-bottomed, deeper, and steep-sided valley formed by glacial erosion (Figure 1). Originally the valley would have in existence as stream/river valley prior to occupation by a glacier.
In geology, a trough is a linear structural depression that extends laterally over a distance. Although it is less steep than a trench, a trough can be a narrow basin or a geologic rift. These features often form at the rim of tectonic plates. There are various oceanic troughs on the ocean floors.
