what is one main difference between continental glaciers and valley glaciers?
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Continental glaciers never melt. A valley glacier spreads out over a large island or continent. Once the depth of snow and ice reaches more than 30 to 40 meters, the force of friction begins to pull a glacier downhill.
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As nouns the difference between depression and valley is that depression is (geography) an area that is lower in topography than its surroundings while valley is an elongated depression between hills or mountains, often with a river flowing through it.
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Glaciers periodically retreat or advance, depending on the amount of snow accumulation or evaporation or melt that occurs. This retreat and advance refers only to the position of the terminus, or snout, of the glacier. Even as it retreats, the glacier still deforms and moves downslope, like a conveyor belt.
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The Peninsular rivers are non-perennial which means they receive water from glacier and rainfall whereas Himalayan rivers are perennial which means they are seasonal-dependent on monsoon. The Peninsular river have narrow catchment area whereas the Himalayan rivers have large catchment area.
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Valleys are depressed areas of land–scoured and washed out by the conspiring forces of gravity, water, and ice. Some hang; others are hollow. They all take the form of a "U" or "V."
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The two basic types of glaciers are Valley Glaciers (found in valleys that were once streams) and Ice Sheets (found on large regions of land). Describe how glaciers move.
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['Alpine Glacier. a glacier in a mountain range.', 'Ice Sheet. -enormous continuous continental glacier. ... ', 'Ice Cap. -round, circular. ... ', 'Ice Field. -The least extensive form of a glacier. ... ', 'Ice Shelf. ...', 'Iceberg. -form where glaciers meet the ocean.', 'Ground Ice. ...', 'Sea Ice. -Frozen ocean water.']
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There are two primary types of glaciers: Continental: Ice sheets are dome-shaped glaciers that flow away from a central region and are largely unaffected by underlying topography (e.g., Greenland and Antarctic ice sheets); Alpine or valley: glaciers in mountains that flow down valleys.
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The biggest difference is that the Arctic is sea surrounded by land while the Antarctic is land surrounded by sea. This fundamental difference is the reason for many of the other differences between the two regions.
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The main types of depositional landforms are summarised below: Moraines – these are composed of rocky debris that has been removed from the valley sides and floor by weathering and erosion and carried downhill by glaciers.
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Two major categories of glaciers are alpine and continental glaciers. Alpine glaciers are those that form at high altitudes in mountainous regions where the temperature is favorable for their formation.
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The most dramatic formations occur on a glacier when it moves downwards on a steep gradient. Fox Glacier has a gradual incline whereas Franz Josef is steeper. The surface of Franz Josef Glacier is full of crevasses and ice caves, where you have a much better chance of seeing the famous blue ice.
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Due to the complexity of glaciers, there are many different kinds. Broadly speaking, glaciers are divided into two groups: alpine glaciers and ice sheets. From here, depending on the part of the glacier or where it travels, they can be divided into further subgroups.
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Calving Glaciers are Unresponsive to Climate Hubbard Glacier is defying the global paradigm of valley or mountain glacier shrinkage and retreat in response to global climate warming. Hubbard Glacier is the largest of eight calving glaciers in Alaska that are currently increasing in total mass and advancing.
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Glaciers are found in Arctic areas, Antarctica, and on high mountains in temperate and even tropical climates. Glaciers that extend in continuous sheets and cover a large landmass, such as Antarctica or Greenland, are called ice sheets. If they are similar but smaller, they are termed ice caps.
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All of the glaciers at Rocky Mountain National Park are cirque glaciers. A cirque glacier is a small glacier that occupies a bowl-shaped basin at the head of a mountain valley. ... There are no valley glaciers in RMNP today, but 15,000 years ago many of the valleys in the park were filled with ice.
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The two continents are moving away from each other at the rate of about 2.5 centimeters (1 inch) per year. Rift valleys are sites where a continental landmass is ripping itself apart.