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What Are U Shaped Valleys? A U-shaped valley is a geomorphological formation that has steep, high sides and a flat or rounded valley bottom. They are the result of glaciation and are frequently home to lakes, rivers, sand traps on golf courses kettle lakes (water hazards), and other such natural features. Glacial erosion forms U-shaped valleys as rocks are removed from the sides and bottom of the valley. These valleys are found in mountainous regions around the world. They are formed by glaciers. Glaciers are huge bodies of ice that form on mountains, and then move down them. When they melt, they create U -shaped valleys that have flat floors and steep sides. These valleys differ from river valleys that are generally formed in the shape of a letter V. While glacial erosion may be seen in a variety of places however, these valleys are typical of mountain regions. In fact, they are so distinct that you can tell whether the landscape was created by glaciers or by rivers. The process of creating a U shaped valley begins by forming the V shape river valley. As the glacier erodes, it encroaches upon the V-shaped valley of the river, and forms an inverted U-shape. The ice also scoures the surface of the land, causing the sides of the valley to have high and straight walls. This process is known as glaciation, and it requires an enormous amount of strength to scour the earth in this manner. As the glacier continues to erode the landscape, it makes the valley wider and deeper. The ice is less frictional than the rocks. As the glacier moves through the valley it also causes abrasion to the rock surfaces. This pulls the less durable rocks away from the valley walls, a process known as plucking. These processes are used together to widen, smoothen and deepen the U-shaped valley. These processes also cause a tiny side valley to be left 'hanging above the main valley. The valley may be filled with ribbon lakes formed when water rushes through the glacier. The valley is also characterized by striations and ruts along the sides and bottom, as in addition to moraines and till on the floor. U-shaped valleys can be found across the globe. They are most often found in mountainous areas, such as the Andes Mountains, Alps Mountains, Himalaya Mountains, Caucasus Mountains, and Rocky Mountains. In the United States, they are typically found in national parks. Examples include Glacier National Park and the Nant Ffrancon Valley in Wales. In some instances these valleys extend to coastal areas and then become fjords. This is a natural phenomenon that occurs when the glacier melts. It can take thousands of years to form these valleys. They are deep U-shaped valleys are characterized by steep sides that curve at the bottom and wide flat valley floor. They are formed by rivers valleys that have been filled with glaciers during the Ice Age. Glaciers degrade valley floors through abrasion and plucking, which causes the valley to expand and deeperen more evenly than with rivers. These features are found around the globe in mountainous areas, including the Andes, Alps, Himalayas, Rocky Mountains, and New Zealand. Glacial erosion of a river valley may transform it into a u-shaped valley by increasing its depth and expanding it. The glacier's erosive force can also cause smaller side valleys, that are typically characterized by waterfalls, to hang above the main valley. These are referred to as “hanging valleys” because they hang over the main valley, when the glacier recedes. These valleys may be surrounded by forest and contain lakes. Some valleys are used for farming, while others are filled with water. Many of these valleys can be found in Alaska, the place where melting glaciers is the most evident. Valley glaciers are huge flowing ice like rivers that slowly slide down the slopes of mountains during a glaciation. They can reach depths of over 1000 feet and are the most common type of valley erosion in the alpine regions. They eat away the rocks that lie at the bottom of the valley, causing depressions and holes that are filled with water. The lakes that result are long and narrow and can be found on the peaks of certain mountains. Another type of valley, a glacial trough, is a U-shaped valley that extends into saltwater and forms an Fjord. These are common in Norway and are referred to as fjords, but are also found in other parts of the world. These are formed by melting ice and are visible on maps around the globe. They are distinguished by steep sides and rounded sides that form a U-shape. The walls of the troughs are usually made from granite. The slopes are steep A U shape valley is a formation of geology with high, steep sides and a smooth bottom. They are very common in mountainous regions and are often carved by glaciers. This is because glaciers slow downhill and scour the earth. Scientists once believed that glaciers could not create valleys due to being so soft. However, now we know that they can. Glaciers create unique u-shaped valleys through the processes of abrasion as well as plucking. Through erosion these processes can widen, steepen, and deepen V shape valleys of rivers. They also change the slopes of the valley floor. These changes happen in the front of the glacier when it turns into a valley. This is the reason why a U form valley is typically wider at the top and narrower at the bottom. U shaped valleys are sometimes filled with lakes. These lakes are called kettle lakes and they form 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 could remain after the glacier has receded. They are typically associated with cirques. A flat-floored valley is another type of valley. The valley is created by streams that degrade the soil. However it doesn't have a steep slope as the U-shaped ones. They are often located in mountainous areas and are often older than other types of valleys. There are a variety of valleys across the globe, and each has a unique appearance. The most common kind of valley is the V-shaped one, however there are also U-shaped and rift valleys. A rift valley is one that develops in places where crust of the earth is breaking apart. These are typically narrow valleys that have steep sides. The Nant Ffrancon valley in Snowdonia, Wales is a good example of this. They are broad Unlike V-shaped valleys, U-shaped valleys have broad bases. Glaciers are the primary cause of these valleys, which are typically located in mountain ranges. Glaciers are huge blocks of snow and ice that degrade landscapes as they move downward. They erode valleys through friction and the abrasion. This process is known as scouring. As they erode the landscape, the glaciers form distinct shapes that resemble an U-shaped letter. These valleys are known as U-shaped valleys and can be found in a variety of locations across the world. These valleys form when glaciers degrade the valleys of rivers. The glacier's slow motion and weight degrades the valley's sides and floor creating a distinct U shape. This process, referred to as glacial erosive erosion, has resulted in some of the most stunning landscapes on Earth. These valleys are often referred to as glacial troughs or troughs. They are found all over the globe, and are especially found in regions with mountains and glaciers. They can vary in dimensions from a few meters to hundreds of kilometers. They can also vary in length and depth. The deeper the valley, the larger the fluctuation 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 cut away less resistant rocks. They can also form in a valley where the glacier has been stopped by a wall. Apart from ribbon lakes, U-shaped valleys can also be filled with glacial features like hanging valleys, erratics, and moraine dams. Erratics, which are massive boulders, are deposited by glaciers as it moves. The erratics can be used to mark the boundaries between glaciated areas. u shaped couch leather are left 'hanging” above the main valley created by the glacier. These valleys are not as deep than the main valley and they are ice-free. These valleys are cut by tributary ice and are typically topped by waterfalls.