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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.
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.
U-shaped valleys. , or troughs, with a flat floor and steep sides. The glacier uses the processes of plucking and abrasion to widen, steepen, deepen and smooth 'V'-shaped river...
Describe glacial features like moraines, eskers, and drumlins, and how they reflect the actions of glaciers. Moraines are piles of glacial debris, eskers are winding ridges of sediment, and drumlins are elongated hills formed by glacial activity.
- Glaciers are large masses of ice formed from the accumulation and compaction of snow. They move due to their own weight and gravity.
- U-shaped valleys are created by the downward movement and erosion of glaciers, which scrape and shape the landscape.
- These landforms showcase the sculpting power of glaciers and help scientists reconstruct past climate and ice sheet behavior.
- Glacial melt contributes to rising sea levels, affecting coastal regions. Global warming accelerates glacial retreat, intensifying these impacts.
Glacial troughs. 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. Quizzes & Activities.
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.
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Oceanic trough, an elongate depression in the seafloor that is characteristically shallower, shorter, narrower, and topographically gentler than oceanic trenches. Maximal depths of oceanic troughs range between 2,300 m (7,500 feet) in the Papuan Trough and 7,440 m in the Banda Trough.
