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What Are U Shaped Valleys A Ushaped valley is a geomorphological formation with steep high sides and a flat or rounded valley bottom These valleys are formed by glaciation They are often filled with lakes rivers sandtraps on golf course kettle lakes water hazards or other natural features The process of glacial erosion creates Ushaped valleys when the rocks are removed from the sides and bottom of the valley These valleys can be found in mountainous regions all over the globe They are formed by glaciers Glaciers are massive bodies of ice which form on mountains and then move down them As they degrade they form U shape valleys with flat floors and steep sides These valleys are different from the valleys of rivers that are generally shaped like the letter V While glacial erosion can be seen in a variety of places these valleys are especially characteristic of mountain areas They are so distinct that it is easy to determine if the landscape was formed by rivers or glaciers The formation of a Ushaped valley starts with an existing Vshaped river valley As the glacier erodes the landscape it encroaches on the Vshaped river valley and creates an inverted Ushaped The ice also scrubbing the surface of land creating straight and high walls on the sides of valley This process is known as glaciation and requires the strength of a lot to scour the earth this manner As the glacier continues to chip away at the landscape it also makes the valley more and more wide This is due to the fact that glacier has a lower frictional resistance than the surrounding 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 combined to increase the width depth and smooth the Ushaped valley These processes also cause a small side valley to be left hanging above the main valley The valley could be filled with ribbon lakes formed when water flows through the glacier The valley is also distinguished by striations and ruts along the sides and bottom as also moraines and till on the floor Ushaped valleys are commonplace everywhere in the world They are prevalent in mountainous areas including 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 some cases valleys can extend to coastal areas and become fjords This is an natural process that occurs when the glacier melts and it can take hundreds of thousands of years for these valleys to be formed The depths of the ocean are deep Ushaped valleys have steep sides that curve in at the base and broad flat valley floors They are created in valleys in rivers that were filled by glaciers during the Ice Age Glaciers degrade valley floors through the process of abrasion and ploughing which causes the valley to widen and deepen more evenly than with a river These features can be found in mountainous regions around the globe including the Andes Mountains Alps Mountains Himalayas Mountains Rocky Mountains and New Zealand The glacial erosion of a valley may transform it into a Ushaped valley by enlarging and deepening it The force of erosion from the glacier can also cause smaller side valleys that are typically identified by waterfalls to rise above the main valley These features are called hanging valleys because they hang above the main valley when the glacier retreats These valleys could be enclosed by forests and contain lakes Some valleys can be used for farming while others are floodprone A majority of these valleys are in Alaska which is where glacial melt is the most evident Valley glaciers are massive like riverlike flows that slowly slide down mountain slopes They can extend to depths of more than 1000 feet and are the most prevalent form of valley erosion in alpine regions They eat the rocks at the bottom of the valley causing depressions and holes that are filled with water The lakes that result are large and thin and can be located in the peaks of a few mountains Another kind of valley called a glacial trough is a Ushaped trough that extends into saltwater and creates a Fjord They are all over the world including Norway which is where theyre known as fjords They are formed by melting glaciers and can be seen on a map of the world They are usually distinguished by rounded sides that mimic a U shape in crosssection and steep sides The trough walls are usually made of granite They are sloping A Ushaped valley is a geological feature with steep sides high sides and a rounded bottom They are very common in mountainous regions and are usually formed by glaciers This is due to glaciers being slowmoving rivers of ice that travel downhill scouring the land as they move Scientists once believed that glaciers couldnt carve valleys because they were so soft But now we know that they can Glaciers cut distinctive ushaped valleys by using the processes of plucking and abrasion Through erosion these processes can broaden steepen and deepen V shaped valleys in rivers The slopes of the valley bottom are also altered These changes occur at the front of a glacier when it traverses a valley This is the reason why the top of a Ushaped valley is typically larger than the lower Sometimes Ushaped valleys can be filled with lakes These lakes are called kettle lakes They are formed in hollows which were eroded out of the rock by the glacier or were dammed by the moraine The lake may be a temporary feature while the glacier melts or can remain after the glacier recedes They are typically found in conjunction with cirques A flatfloored Valley is another kind of valley The valley is created by streams which erode the soil However it does not have a steep slope like a Ushaped valley They are generally found in mountainous regions and can be much older than other types There are various types of valleys around the world Each has its own distinct appearance The most popular is a Vshaped one but other types include Ushaped valleys as well as the rift valleys A rift valley forms where the earths surface is breaking apart They are typically narrow valleys that have steep sides The Nant Ffrancon valley in Snowdonia Wales is a good illustration of this They are broad Unlike Vshaped valleys Ushaped valleys have broad bases Glaciers are the primary cause of these valleys which are usually found in mountain ranges Glaciers are massive blocks of snow and ice which erode the landscape as they slide downhill They cause valleys to be eroded by friction and abrasion This process is known as Scouring As they erode the landscape glaciers create a distinctive shape resembling an Ushaped letter These valleys are known as Ushaped valleys and can be found in a variety of locations across the globe The formation of these valleys occurs when glaciers degrade existing river valleys The glaciers slow motion and weight degrades the valleys floor and sides and creates a distinctive U shape This process known as glacial erosive erosion has resulted in some of the most beautiful landscapes on Earth These valleys are often called trough valleys or glacial troughs They are found all over the world but especially in areas with mountains and glaciers They can vary in size from a couple of meters to hundreds of kilometers They also vary in depth and length The deeper the valley is the more intense the fluctuation of temperature will be When a Ushaped valley gets filled with water it develops into a ribbon lake or fjord u shape sofa leather are formed in the valleys in which the glacier cut the less resistant rock They can also form within valleys in which the glacier is stopped by a wall Ushaped valleys may also contain other glacial features such as moraine dams hanging valleys and erratics Erratics also known as massive boulders are formed by a glacier as it moves The erratics are frequently used to define the boundaries of glaciated regions These smaller valleys are left hanging above the main valley created by the glacier These valleys arent as deep as the main valley and they contain less ice They are carved by tributary glaciers and are usually covered by waterfalls