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Glacial Trough (U-shaped valleys) - Flat-bottomed valley with steep sides produced by the erosion of the floor and sides of the valley by an alpine glacier as its sediment abrades while the glacier flows downhill. On the topographic maps they are recognized by closely spaced contours along the valley sides and widely spaced contours on the valley floor.
Hanging Glacial Troughs - Formed when the down-cutting erosion of the main valley glacier exceeds that by the tributary glacier. The tributary glacier flows onto the main glacier and thus has an erosional base level of the elevation of the main valley glacier. After melting, the lower portion of the tributary glacial trough is then left hanging above the main floor of the glaciated valley. On maps they are recognized by more widely spaced contours across a stream in the upper portion than in the lower portion (where the modern stream cascades into the main valley below).
What else can I help you with?
What name is given to a coastal valley sculpted by glacial action?
If it is inundated by the sea it is called a "Fjord", if not is just a glacial valley.
A valley that has been glaciated by a smaller side glacier and is left standing higher than the main U-shaped valley is a .?
It's called a "hanging valley". Many waterfalls occur at hanging valleys.
Which valley are 'U' shaped valley?
A U-Shaped Valley is formed by glacial erosion.
How does the shape of a stream valley compare to the shape of a glacial valley?
A stream valley typically has a V-shape, while a glacial valley has a U-shape. This difference in shape is due to the different erosional processes involved. Stream valleys are eroded mainly by flowing water, while glacial valleys are shaped by the movement of glaciers that scrape and pluck rock and sediment.
What is the best way to describe the shape of a glacial valley?
A glacial valley typically has a U-shaped cross-section, with steep walls and a flat or gently sloping bottom. These valleys often have a wide floor and are characteristic of being carved out by the movement of glaciers.
Which is not a feature created by glacial deposits?
hanging valley
What is a glacial trough and how does it form?
A glacial trough is a U-shaped valley carved out by a glacier as it moves downhill. It forms through a process called glacial erosion where the glacier scours and deepens the valley over time by plucking and grinding the bedrock beneath it. The vast weight and movement of the glacier cause it to scrape and shape the landscape into a distinctive U-shaped trough.
What are smaller glacial valleys that join the deeper main valley?
They are called hanging valleys. The smaller glacier valleys are the hanging walls that join the deeper main valley called the U-shaped valley.
Smaller glacial valleys that join the deeper main valley?
Smaller glacial valleys that join a deeper main valley are often referred to as tributary valleys or hanging valleys. These valleys typically form when smaller glaciers flow into a larger glacier, resulting in a steep drop-off where the tributary meets the main valley. As the main glacier erodes the landscape, it carves out a deeper trough, leaving the smaller valleys elevated, which can create stunning waterfalls when the tributary streams plunge into the main valley below. This geological feature is common in mountainous regions shaped by glacial activity.
What is one land feature formed by glaciers?
arete-steep sided ridge corries-hollows containing small glaciers ribbon lakes-formed by glacial retreat glacial trough-steep flat bottomed valleys hanging valleys-valleys formed by tributary glaciers truncated spurs-cliff like edges of a valley pyramidal peak -mountain with 3 sides
The U-shaped valley produced by the erosion of a valley glacier is called what?
A U-shaped valley produced by the erosion of a valley glacier is called a glacial trough. This distinct feature is carved out by the movement of ice over time, shaping the landscape into a broad and deep valley with steep sides.
How are glacial troughs formed?
A glacier trough is also known as a U-shaped valley and is formed when a glacier passes through it. The glacier erodes the bottom of the valley through abrasion, and the sides of the valley through freeze-thaw weathering. It wears away the softer rock but when it gets to the harder, tougher rock it can't erode it to give the glacial trough its shape. Hope this helps!
Does a you shaped valley indicate glacial erosion?
A 'U' shaped valley indicates glacial erosion.
What name is given to a coastal valley sculpted by glacial action?
If it is inundated by the sea it is called a "Fjord", if not is just a glacial valley.
What are the erosional features you might expect to see in an area where valley glaciers exist or have existed?
Erosional features in areas with valley glaciers include U-shaped valleys, cirques (bowl-shaped hollows at the head of glaciers), arêtes (sharp ridge between cirques), and hanging valleys (smaller valleys that join a main glacier valley). Glacial striations (scratches on bedrock caused by moving glacier ice) and moraines (piles of debris deposited by glaciers) are also common erosional features.
When Glacial valley is formed?
A glacial valley is formed when a glacier carves out the landscape as it moves slowly downhill. As the glacier advances, it erodes the surrounding rock and sediment, creating a U-shaped valley characterized by steep sides and a flatter bottom. This process occurs over thousands of years and is typically marked by features such as hanging valleys, moraines, and fjords once the glacier retreats. The resulting landforms reflect the immense power of glacial erosion.
Is the grand canyon a glacial trough?
No. The Grand Canyon was carved by the Colorado River.
