Leh valley glacier is visible at the top of the valley. Suggest as a translation of "u-shaped valley" Copy; DeepL Translator Linguee. Translate texts with the world's best machine translation technology, developed by the creators of Linguee. Most of the first civilizations developed from these river valley communities. The terms U-shaped and V-shaped are descriptive terms of geography to characterize the form of valleys. U-shaped valley occurs typically in the V-shaped valley already existing. The terms U-shaped and V-shaped are descriptive terms of geography to characterize the form of valleys. In some stress-tectonic regions of the Rockies or the Alps (e.g. A valley is a low area between hills or mountains typically with a river running through it. Look at other dictionaries: U-shaped valley A valley having a pronounced parabolic cross profile suggesting the form of a broad letter U , with steep walls and a broad, nearly flat floor; specifically a valley carved by glacial erosion. Translator. The location of the villages depends on the across-valley profile, on climate and local traditions, and on the danger of avalanches or landslides. Tunnel valleys were formed by subglacial erosion by water. The exact shape will depend on the characteristics of the stream flowing through it. Their cross-sections exhibit steep-sided flanks similar to fjord walls, and their flat bottoms are typical of subglacial glacial erosion. This page was last edited on 1 December 2020, at 17:43. Usually the bottom of a main valley is broad independent of the U or V shape. Figure 16.20 A depiction of a U-shaped valley occupied by a large glacier. In rural areas in America, it may be pronounced as "holler". In geography, a vale is a wide river valley, usually with a particularly wide flood plain or flat valley bottom. About @ Founder Facebook Twitter Google+ Youtube Wikipedia Write to us. They are most commonly associated with U-shaped valleys when a tributary glacier flows into a glacier of larger volume. They have a characteristic U shape, with steep, straight sides and a flat or rounded bottom (by contrast, valleys carved by rivers tend to be V-shaped in cross-section). Other terms used for valleys are: Similar geological structures, such as canyons, ravines, gorges, gullies, chines and kloofs, are not usually referred to as valleys. An elongated lowland between ranges of mountains, hills, or other uplands, often having a river or stream running along the bottom. However, in the lowest stretch of a river, where it approaches its base level, it begins to deposit sediment and the valley bottom becomes a floodplain.[3]. Predominant are places on terraces or alluvial fans if they exist. This replaces the original stream or river and is known as a misfit stream because it is smaller than one would expect given the size of its valley. Shallower slopes may produce broader and gentler valleys. Depending on the topography, the rock types and the climate, a variety of transitional forms between V-, U- and plain valleys can form. Trough-shaped valleys occur mainly in periglacial regions and in tropical regions of variable wetness. Box valleys have wide, relatively level floors and steep sides. Continuously flowing glaciers especially in the ice age and large-sized glaciers carve wide, deep incised valleys, sometimes with valley steps that reflect differing erosion rates. This trough valley becomes visible upon the recession of the glacier that forms it. This article is about the physical-geographic term. Valley glaciers carve U-shaped valleys, as opposed to the V-shaped valleys carved by rivers. Hanging valleys are also simply the product of varying rates of erosion of the main valley and the tributary valleys. In glacial valley valley is converted to a U-shaped valley because the U-shape provides the least frictional resistance to the moving glacier. Look up words and phrases in comprehensive, reliable bilingual dictionaries and search through billions of online translations. Often, they take the easiest path, occupying the low V-shaped valleys A hanging valley is a tributary valley that is higher than the main valley. By contrast, with glacial U-shaped valleys, there is less downward and sideways erosion. Compare: V shaped valley. Open menu. G3`*Y;jUxu8x^}D&%-;4_jU,j+_TZxv^kk ByIw$s uH] I ${ A6. Valley is immediately south of the pass of Khardung La. Rift valleys, such as the Albertine Rift and Gregory Rift are formed by the expansion of the Earth's crust due to tectonic activity beneath the Earth's surface. Classic u shaped valley carved by retreating mountain glaciers.jpg 1,748 2,625; 190 KB Coire Creagach from top of Carn Dearg - geograph.org.uk - 1660284.jpg 640 420; 64 KB Coire Odhar and Loch Einich - geograph.org.uk - 266013.jpg 640 480; 100 KB Antonyms for U-shaped valley. An example is the Vale of White Horse in Oxfordshire. In the Alps e.g. The broader a mountain valley, the lower its shoulders are located in most cases. As a result, its meltwaters flowed parallel to the ice margin to reach the North Sea basin, forming huge, flat valleys known as Urstromtler. A material called boulder clay is deposited on the floor of the valley. In geology, a valley or dale is a depression that is longer than it is wide. The glacier visible at the head of the valley is the last remnants of the formerly much more extensive valley glacier which carved this valley. When the ice recedes or thaws, the valley remains, often littered with small boulders that were transported within the ice. The main glacier erodes a deep U-shaped valley with nearly vertical sides while the tributary glacier, with a smaller volume of ice, makes a shallower U-shaped valley. Floor gradient does not affect the valley's shape, it is the glacier's size that does. The mouth of Ikjefjord is only 50 meters deep while the main fjord is around 1300 meters at the same point. [SE] Figure 16.21 The view down the U-shaped valley of Mill Creek valley toward the U-shaped valley of Howe Sound, with the village of Britannia on the opposite side. GG Glossary of landform and geologic terms. at the sunny side) because the climate is very mild: even in winter when the valley's floor is completely filled with fog, these villages are in sunshine. It typically ranges from about one to ten kilometers in width and is commonly filled with mountain sediments. During periods when Earths climate cools, glaciers form and begin to flow downslope. Because a glacier has a much greater viscosity and cross section than a river, its course has fewer and broader bends, and thus, the valley becomes straighter and smoother. This proceeds through the glacial erosion processes of glaciation and abrasion, which results in large rocky material (glacial till) being carried in the glacier. Their bottoms can be broad or narrow, but characteristic is also the type of valley shoulder. As they flow slowly off snowcapped mountains, broken rocks get trapped in their bottom layers. Media in category "U-shaped valleys of Scotland" The following 24 files are in this category, out of 24 total. Fact 1: Valleys take millions of years to form. The proximity of water moderated temperature extremes and provided a source for irrigation, stimulating the development of agriculture. U-shaped valley in Leh valley, Ladakh, NW Indian Himalaya. In Southern England, vales commonly occur between the escarpment slopes of pairs of chalk formations, where the chalk dome has been eroded, exposing less resistant underlying rock, usually claystone. Linguee. The shape of the floor can be rather horizontal, similar to a flat cylinder, or terraced. They served as subglacial drainage pathways carrying large volumes of melt water. leys 1. Fact 4: A river or glacier cannot create a valley when two plates do not touch completely. Synonyms for U-shaped valley in Free Thesaurus. Climbing out of the U-shaped valleys of Seneca and Cayuga Lakes is a bit of a huff 'n' puff, but the persistent hiker is rewarded with magnificent views. A tunnel valley can be up to 100km (62mi), 4km (2.5mi) wide, and 400m (1,300ft) deep (its depth may vary along its length). A; A; A; A; Language: What are synonyms for U-shaped valley? How are U-Shaped Valleys Formed? This term is commonly used in Ireland, New England, Appalachia, and the Ozarks of Arkansas and Missouri to describe such geographic features. Binnein Mor and Na Gruagaichean - 27AUG2014 60 A hollow is a small valley or dry stream bed. Glaciers are incredibly powerful. When the glacier melts, a U-shaped valley marks the spot where the snow and ice once flowed. Trough-shaped valleys also form in regions of heavy denudation. The most famous valley is the Lairig Ghru pass, a gouge through the centre of the mountainsa u-shaped valley, now partly filled with extensive scree produced by intense frost action during ice-free periods. |/]H3]zu!za|k4a#Y#c_-~*v!QY Fascinating Facts About V-shaped Valleys. There are various forms of valley associated with glaciation that may be referred to as glacial valleys. Most present U-shaped valleys started as V-shaped before glaciation. Some Scottish glens full with bushes and flowers. They have a characteristic U-shape, with steep, straight sides, and a flat bottom. Glacial erosion produces U-shaped valley s, and fjords are characteristically so shaped. Some of the first human complex societies originated in river valleys, such as that of the Nile, Tigris-Euphrates, Indus, Ganges, Yangtze, Yellow River, Mississippi, and arguably Amazon. Since the surfaces of the glaciers were originally at the same elevation, the shallower valley appears to be 'hanging' above the main valley. Most valleys belong to one of these two main types or a mixture of them, at least with respect to the cross section of the slopes or hillsides. For places named "Valley", see, Low area between hills, often with a river running through it, For a comprehensive list of river valleys, see. the Tyrolean Inn valley the shoulders are quite low (100200 meters above the bottom). Germany: affluents to the middle reaches of. Both climates are dominated by heavy denudation. In prehistory, the rivers were used as a source of fresh water and food (fish and game), as well as a place to wash and a sewer. A valley carved by glaciers is normally U-shaped and resembles a trough. Spell. Historic siting of villages within the mainstem valleys, however, have chiefly considered the potential of flooding. The formation of U-shaped valleys, with a little bit of kitchen geography! The varying rates of erosion are associated with the composition of the adjacent rocks in the different valley locations. In northern Central Europe, the Scandinavian ice sheet during the various ice ages advanced slightly uphill against the lie of the land. The mouth of Fjrlandsfjord is about 400 meters deep while the main fjord is 1200 meters nearby. An important exception are canyons where the shoulder almost is near the top of the valley's slope. These rocks, along with the force of the ice, wear away the land like sandpaper. 11 synonyms for valley: hollow, dale, glen, vale, depression, dell, dingle, strath, cwm, coomb, vale. This American national park is located in northwestern Montana, and the enormous glaciers of the last ice age carved them into their present shapes. The tributary valley composed of more resistant rock then hangs over the main valley.[7]. The brooks flow into the river in form of deep canyons or waterfalls. The branches of Sognefjord are for instance much shallower than the main fjord. Often, waterfalls form at or near the outlet of the upper valley. As the ice melts and retreats, the valley is left with very steep sides and a wide, flat floor. A U-shaped valley is one of the features created by glaciers as they erode, or wear away, the land that they move through. Fact 3: Glaciers often follow a river valley and change its shape from V to U-shape. They are common in periglacial areas and occur in mid-latitudes, but also occur in tropical and arid regions.[8]. The tributary valleys are eroded and deepened by glaciers or erosion at a slower rate than that of the main valley floor, thus the difference in the two valleys' depth increases over time. A valley in its broadest geographic sense is also known as a dale. [5], Hanging valleys also occur in fjord systems under water. Rivers with steep gradients, as in mountain ranges, produce steep walls and a bottom. Some of the deepest valleys in the world were made by glaciers. Erosion of Sognefjord, Norway. Appalachian story tellers say that a holler is an area where a person has to holler (yell) to communicate with their nearest neighbor because the neighbor is far away (the area is sparsely populated). Fact 2: V-Shaped valleys are recognized from their V-shaped cross-section. Side valleys are rather V than U-shaped; near the mouth waterfalls are possible if it is a hanging valley. The severe slope denudation results in gently sloping valley sides and their transition to the actual valley bottom is unclear. Learn how and when to remove this template message, Black Canyon of the Gunnison National Park, List of largest rifts, canyons and valleys in the Solar System, "Illustrated Glossary of Alpine Glacial Landforms - Hanging Valley", List of rivers that have reversed direction, https://en.wikipedia.org/w/index.php?title=Valley&oldid=991756813, Articles needing additional references from May 2013, All articles needing additional references, Wikipedia articles needing clarification from November 2017, (), Srpskohrvatski / , Creative Commons Attribution-ShareAlike License. U-shaped valley in Leh valley, Ladakh, NW Indian Himalaya. A valley formed by flowing water, called fluvial valley or river valley, is usually V-shaped. Wikipedia Encyclopedia. The Finger Lakes Trail: three decades later Nestled below the rock are hundreds of twisted canyons and U-shaped valleys , which have some of the most fantastic landscapes in North America. [6], Glaciated terrain is not the only site of hanging streams and valleys. The dam would be constructed on Mula River and site for the dam is where a relatively wide U-shaped valley starts and the river cuts through a series of It takes 10,000 to 100,000 years by glaciers to flatten out the bottom of V-shaped valley and convert it into a U-shaped valley. Most valleys belong to one of these two main types or a mixture of them, at least with respect to the cross section of the slopes or hillsides.[1]. This geographical formation occurred primarily due to glacial erosion and also referred to as a trough valley or a glacial trough. A river or stream may remain in the valley. From Wikipedia, the free encyclopedia A glaciated valley in the AltaiMountains showing the characteristic U shape. Glaciated valleys are formed when a glacier travels across and down a slope, carving the valley by the action of scouring. Many valleys like this were made in the Ice Ages. Structural valley: A valley formed by geologic events such as drop faults or the rise of highlands. a geological formation characterized by high and steep sides and a rounded or flat valley bottom A U-shaped valley is one formed by the process of glaciation. In geology, a valley or dale is a depression that is longer than it is wide. Howe Sound and most of its tributary valleys have pronounced U-shaped profiles (Figure 16.21). Tools. The effect of glaciers is profound on the topography (lay of the land) as up to billion-to U-shaped valleys, trough valleys or DescriptionU-shaped valley at the head of Leh valley, Ladakh.JPG English:Glacial valley at the head of Leh valley, Ladakh, NW India. Unlike the other forms of glacial valley, these were formed by glacial meltwaters. Examples of U-shaped valleys are found in every mountainous region that has experienced glaciation, usually during the Pleistocene ice ages. U-shaped valley occurs typically in the V-shaped valley already existing. The glaciers carved it out wider and deeper, simultaneously changing the shape. The glacier visible at the head of the valley is the last remnants of the formerly much more extensive valley glacier which carved this valley. Side valleys are formed by tributaries to streams and rivers and feed the main stem. Languages . Nesje, A., & Whillans, I. M. (1994). Salzburg) the side valleys are parallel to each other, and additionally they are hanging. Other interesting glacially carved valleys include: A tunnel valley is a large, long, U-shaped valley originally cut under the glacial ice near the margin of continental ice sheets such as that now covering Antarctica and formerly covering portions of all continents during past glacial ages.[4]. 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