Search results
- trough Quick Reference 1 An extension of low atmospheric pressure from the central regions of a low-pressure system into a zone where generally higher pressure prevails.
www.oxfordreference.com/display/10.1093/oi/authority.20110803105852368
People also ask
What is a trough in geology?
What is a glacial trough?
What does trough mean?
How do you identify troughs and ridges on an upper air map?
What is the difference between Ridge and trough?
How do Troughs form?
Jun 22, 2024 · Troughs can be recognized by wavy lines that dip southward and have a “U-shape.”. On the other hand, ridges are characterized by lines that bend northward and have an “N-shape.”. By noticing these distinctive patterns, we can easily identify troughs and ridges on an upper air map.
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.
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.
Key learning points. Geologists test different rocks for permeability. This tells them which rocks allow liquid, e.g. water, to pass through. Permeable rocks, such as sandstone, let water pass through them. Impermeable rocks, such as marble, do not let water pass through them.
Oct 25, 2024 · glacial trough. A relatively straight, steep-sided, U-shaped valley that results from glacial erosion. Its cross profile approximates to a parabola, while its long profile is often irregular, with rock bars (riegel) and over-deepened rock basins being typical features.
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.
