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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 result from glaciation, and are usually the home of rivers, lakes and sand traps on golf courses, kettle lakes (water hazards), and other such natural features. Glacial erosion causes U-shaped valleys when rocks are ripped from the side and bottom of the valley. These valleys can be seen in mountainous regions all over the globe. They are formed by glaciers Glaciers are massive masses of ice that form and move down mountains. When they degrade the landscape, they create U-shaped valleys that have flat floors and steep sides. These are different from river valleys that are usually shaped in the shape of an X. While glacial erosion can happen anywhere however, these valleys tend be more common in mountainous regions. They are so distinct that you can determine if the landscape was formed by rivers or glaciers. The process of creating a U -shaped valley starts by forming a V shape river valley. As the glacier melts it, it expands into the V-shaped valley of the river, and forms an U-shaped inverted form. The ice also scratches the surface of the ground, causing the sides of the valley to have high and straight walls. This is known as glaciation and it requires a lot of strength to scour earth in this manner. As the glacier continues to chip away at the landscape it also makes the valley more and more wide. This is because the ice has a lower frictional resistance than the rocks around it. As the glacier moves through the valley, it also causes abrasion of the surfaces of the rocks. This pulls the less durable rocks away from valley walls through a process called plucking. These processes are combined to widen, deepen and smooth the U-shaped valley. These processes also cause a tiny side valley to hang over the main valley. This valley is sometimes filled with ribbon lakes which are formed by the rushing of water through the glacier. The valley is also marked with striations and ruts, till on the sides, as well as moraines and till on the floor. The world is full of U-shaped valleys. They are common in mountainous regions, such as the Andes, Alps, Caucasus, Himalaya and Rocky Mountains. In the United States, they are usually found in national parks. Examples include Glacier National Park and the Nant Ffrancon Valley in Wales. In certain instances valleys can expand to the ocean and transform into fjords. This is a natural process that occurs when the glacier melts. It can take thousands of years to create these valleys. The depths of the ocean are deep U-shaped valleys are characterized by steep sides that curve towards the bottom, and a wide, flat valley floor. They are formed by rivers valleys that were filled with glaciers during the Ice Age. The glaciers erode the valley's floor by abrasion and plucking, which cause the valley to grow deeper and widen more equally than a river would. These features are found around the globe in mountainous areas, including the Andes, Alps, Himalayas, Rocky Mountains, and New Zealand. The erosion of a river valley can transform it into a u-shaped valley by deepening and enlarging it. The force of the glacier's erosion can also cause smaller side valleys, that are typically marked by waterfalls, to float above the main valley. These types of valleys are known as “hanging valleys” because they are hung above the main valley when the glacier retreats. These valleys are typically located in forests and could contain lakes. Some valleys are used for farming while others are flood-prone. Many of these valleys are located in Alaska which is the region where melting glaciers is the most prominent. Valley glaciers are massive like river-like flows that slowly slide down mountain slopes. They can be as deep as more than 1000 feet and are the most common type of valley erosion in regions of alpine. leather u shape sectional consume the rocks that lie at the bottom of the valley, leaving behind depressions and holes that are filled with water. The lakes that result are wide and thin, and they are found in the peaks of certain mountains. A glacial trough is a different kind of valley. It is an U shape valley that extends out into salt water to create a fjord. These are typical in Norway in Norway, where they are known as fjords. However, they are also found in other regions of the world. They are created by melting glaciers, and can be seen on a map of the globe. They are distinguished by their steep sides and rounded sides with the U-shape. The walls of troughs are typically carved out of granite. The slopes are steep. A U shape valley is a type of formation with steep, high sides and a smooth bottom. Glaciers are the cause of many of these valleys. They are prevalent in mountainous regions. It is because glaciers move slowly downhill and scour the earth. Scientists once believed that glaciers couldn't carve valleys because they were so soft. However, now we know they can. Glaciers create distinctive u-shaped valleys through the processes of abrasion and plucking. Through erosion, these processes can widen, steepen, and deepen V formed valleys in rivers. The valley's slopes bottom are also altered. These changes occur at the front of the glacier when it is pushed into a valley. This is why a U shaped valley is often larger at the top than at the bottom. Sometimes, U-shaped valleys may be filled with lakes. These are referred to as kettle lakes. They are formed in hollows that were created out of the rock by the glacier or dammed by the moraine. The lake may be a temporary feature as the glacier melts or it could remain after the glacier has receded. These lakes are usually found in conjunction with cirques. A flat-floored Valley is a different kind of valley. The valley is created by streams that erode the soil. However it does not have a steep slope like the U-shaped ones. They are generally found in mountainous regions and are often older than other types. There are many different types of valleys in the world and each has a unique appearance. The most popular is a V-shaped one, but there are other varieties, including U-shaped valleys and rift valleys. A rift valley is one that is formed in areas where the earth's crust is splitting apart. They are typically narrow valleys with steep sides. This is evident in the Nant Ffrancon Valley, located in Snowdonia. They are broad U-shaped valleys are characterized by their broad bases, unlike V-shaped ones. They are typically found in mountains and are formed by glaciers. Glaciers are massive blocks made of snow and ice that degrade the landscape as they move downhill. They degrade valleys by friction and abrasion. This is referred to as scouring. The glaciers degrade the landscape in a distinctive U-shaped design. These valleys, also known as U-shaped Valleys, can be found in a variety of places around the world. The formation of these valleys occurs when glaciers degrade existing river valleys. The weight of the glacier and its slow movement can cause erosion of the valley floor and sides, creating a distinctive U-shaped shape. This process is known as glacial erosion and has produced some of the most breathtaking landscapes on Earth. These valleys are also called trough valleys, or glacial troughs. These valleys are all over the globe, but are most often found in regions with glaciers and mountains. They can range in dimensions from a few meters to hundreds of kilometers. They can also vary in length and depth. The fluctuations in temperature will be greater the deeper the valley. When a U-shaped valley is filled with water, it develops into a ribbon lake or fjord. The ribbon lakes develop in the valleys where the glacier eroded the rock that was less resistant. They can also form in a valley, in which the glacier is stopped by the wall. U-shaped valleys could also include other glacial features, like hanging valleys, moraine dams, and erratics. Erratics, which are massive boulders, are deposited by glaciers as the latter moves. The erratics are frequently used to define the boundaries of glaciated regions. These smaller valleys are left 'hanging” above the main valley that was created by the glacier. These valleys aren't as deep as the main valley and they are ice-free. They are carved by glaciers that tributary to the main valley and are usually capped by waterfalls.