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What are u shaped valleys; http://itsroom.co.kr/eng/bbs/board.php?Bo_table=free&Wr_id=362296,?

A U-shaped valley is a geomorphological formation that has steep, high sides and a flat or rounded valley bottom. These valleys are formed by glaciation. They often contain lakes, rivers, sandtraps on golf course, kettle lakes (water hazards) or other natural features.

The process of glacial erosion creates U-shaped valleys as rocks are removed from the sides and bottom of the valley. These valleys can be found in mountainous regions around the world.

Glaciers are responsible for forming them.

Glaciers are large bodies of ice that are formed on the tops of mountains and then slide down them. As they degrade they form U shape valleys with flat floors and steep sides. These valleys are different from river valleys, which are usually designed to look like the letter V. Although glacial erosion can occur in many places, these valleys are especially typical of mountain regions. In fact, they are so distinct that you can tell if the landscape was created by glaciers or by rivers.

The formation of a U-shaped valley begins with an existing V-shaped river valley. As the glacier degrades the landscape it encroaches on the V-shaped river valley and creates an inverted u shaped sectional couch shape. The ice also scrubbing the surface of the land creating straight and high walls on the sides of valley. This is known as glaciation, and it takes a lot of strength to scour earth in this manner.

As the glacier continues to erode the landscape, it also makes the valley wider and deeper. The glacier's ice is less frictional than the rocks. As the glacier travels down the valley it also causes scratches on the rocks and pulls the weakend rocks away from the valley walls in a process known as plucking. These processes work together to widen, deepen and smooth the U-shaped valley.

This process can cause a small valley to 'hang over the main one. This valley is sometimes filled with ribbon lakes, that are formed by water rushing through the glacier. The valley is also characterized by striations, ruts and striations on the sides and the floor, as well as till and moraines on the floor.

U-shaped valleys can be found all over the world. They are most often located in mountainous regions, such as the Andes Mountains, Alps Mountains, Himalaya Mountains, Caucasus Mountains, and Rocky Mountains. In the United States they are usually located in national parks. Examples include Glacier National Park and the Nant Ffrancon Valley in Wales. In some instances valleys can expand to the coast and turn into Fjords. This is natural process that occurs when the glacier melts, and it could take tens of thousands of years for these valleys to be created.

They are deep

U-shaped valleys have steep sides that curve into the bottom and large, flat valley floors. They are formed in river valleys that have been filled by glaciers during the glacial era. Glaciers degrade the valley floor through abrasion and plucking which causes the valley to get deeper and widen more evenly than a river could. These types of features are common throughout the globe in mountainous regions which include the Andes, Alps, Himalayas, Rocky Mountains, and New Zealand.

The erosion of a river valley can transform it into a u-shaped valley by increasing its depth and expanding it. The erosive force of the glacier can cause smaller side valleys to hang above the main valley which is often marked by waterfalls. These are referred to as "hanging valleys" due to the fact that they hang over the main valley, as the glacier recedes.

These valleys are often surrounded by forest and contain lakes. Some valleys are used for agriculture while others are filled with water. Many of these valleys are in Alaska which is the region where melting glaciers are the most evident.

Valley glaciers are massive, like river-like flows that slowly slide down the slopes of mountains. They can be as deep as 1000 feet, and are the predominant form in the alpine regions of valley erosion. They eat away the rocks at the bottom of the valley, leaving behind depressions and holes filled with water. The resulting lakes are long and thin, and can be located in the peaks of some mountains.

Another type of valley, a glacial trough is a U-shaped valley that extends into saltwater and forms a Fjord. They are all over the globe, including Norway which is where they're known as fjords. They are created by melting glaciers, and can be seen on a map of the globe. They are usually characterized by rounded sides that resemble a U shape in cross-section as well as steep sides. The trough walls are generally carved out of granite.

The slopes are steep.

A U-shaped valley is a geomorphological feature with steep sides, high sides and a rounded bottom. They are very common in mountainous regions and are often carved by glaciers. This is due to glaciers being slow-moving rivers of ice that travel downhill, scouring the earth as they go. Scientists once believed that glaciers could not create valleys because they were too soft. But now, we know that they can.

Glaciers form distinctive u-shaped valleys through the processes of plucking and abrasion. These processes widen, steepen and deepen V-shaped river valleys to a U shape through erosion. The valley's slopes bottom are also altered. These changes happen in the front of the glacier when it turns into a valley. This is why the top of a u shape sofas-shaped valley is usually wider than the bottom.

Sometimes, U-shaped valleys may be filled with lakes. These lakes are called kettle lakes. They are formed in hollows that were created out of the rock by the glacier or drained by the moraine. The lake could be a temporary feature when the glacier melts, or it may remain even after the glacier receding. They are usually associated with cirques.

Another type of valley is a flat-floored valley. This valley is formed by streams that degrade the soil. However it doesn't have a steep slope as a U-shaped one. They are often located in mountainous areas and can be a lot older than other kinds of valleys.

There are a variety of valleys in the world and each one has a distinct appearance. The most common is a V-shaped valley but there are other varieties, including U-shaped valleys and the rift valleys. A rift valley is one that forms in places where the crust of the earth is separating. They are typically narrow valleys with steep sides. This is evident in the Nant Ffrancon Valley, located in Snowdonia.

They are wide

In contrast to V-shaped valleys U-shaped valleys have broad bases. They are most often found in mountains and are formed by glaciers. Glaciers are huge blocks of snow and ice that degrade landscapes as they slide downwards. They degrade valleys by crushing rocks through friction and abrasion. This is referred to as the scouring. The glaciers degrade the landscape in a distinctive U-shaped pattern. These valleys, often referred to as U-shaped Valleys, are able to be found in a variety of locations across the globe.

The formation of these valleys takes place when glaciers degrade existing valleys of rivers. The glacier's slow motion and weight is able to erode the valley's sides and floor, creating a distinctive U shape. This process is known as glacial erosion and has produced some of the most breathtaking landscapes on Earth.

These valleys may also be called trough valleys or glacial troughs. These valleys are found throughout the globe, but are most often found in areas with glaciers and mountains. They can range in size from a few metres to several hundred kilometers. They also vary in depth and length. The deeper the valley is, the greater the variation of temperature will be.

A fjord or ribbon lake is formed when a U-shaped valley is filled with water. The ribbon lakes develop in depressions where glaciers eroded less resistant rock. They can also form within a valley, in which the glacier is stopped by a wall.

In addition to U-shaped valleys, the ribbon lakes can also be filled with glacial features, such as erratics, hanging valleys and moraine dams. Erratics, which are massive boulders, are created by a glacier as it moves. They are commonly used to mark the boundaries of glaciated regions.

These smaller valleys are left hanging" above the main valley that was created by the glacier. These valleys are not as ice-filled and are not as deep. They are formed by tributary glaciers and are usually covered by waterfalls.