what are the two kinds of glaciers and how are they different quizlet?
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Two kinds of glaciers are continental glaciers and valley glaciers. They are different because a continental glacier covers much of a continent and a valley glacier forms in a mountain valley.
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Generally, we distinguish two types of mountains, according to their age. Young mountains, created several dozen million years ago, have steep slopes and high-pointed peaks. ... Old mountains, in contrast, have rounded peaks and slopes made gentler by hundreds of millions of years of erosion.
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The alpine tundra is a lot like the arctic tundra. It is very cold and windy. The main difference between the two tundra is why each is cold. The alpine tundra is cold because it is so high above Earth's surface.
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The ice on the North Pole is in the form of a floating polar ice cap, whereas the ice on the South Pole is mainly in the form of an ice sheet on top of the continent of Antarctica.
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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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The current geological period, the Quaternary, which began about 2.6 million years ago and extends into the present, is marked by warm and cold episodes, cold phases called glacials (Quaternary ice age) lasting about 100,000 years, and which are then interrupted by the warmer interglacials which lasted about 10,000– ...
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Why is glacier ice blue? Because the red (long wavelengths) part of white light is absorbed by ice and the blue (short wavelengths) light is transmitted and scattered. The longer the path light travels in ice, the more blue it appears.
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What is the difference between glacial erosion and glacial deposition? ... Glacial erosion is where a glacier scours out rock from the glacial valley. Glacial deposition is a little more complex.
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The Arctic is an ocean, covered by a thin layer of perennial sea ice and surrounded by land. ("Perennial" refers to the oldest and thickest sea ice.) Antarctica, on the other hand, is a continent, covered by a very thick ice cap and surrounded by a rim of sea ice and the Southern Ocean.
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The main difference between the two tundra is why each is cold. The alpine tundra is cold because it is so high above Earth's surface. The alpine tundra has no trees. It has grasses and shrubs like the arctic tundra.
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Runoff can come from both natural processes and human activity. The most familiar type of natural runoff is snowmelt. Mountains that cannot absorb water from heavy snowfalls produce runoff that turns into streams, rivers, and lakes. Glaciers, snow, and rain all contribute to this natural runoff.
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During movement there are three parts of the glacier: The zone of basal sliding; the zone of plastic flow; and the rigid zone. The rigid zone is brittle and sometimes is broken into crevasses. Ice sheets move with these three zones but often spread laterally rather than flow downslope.
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Retreating glaciers from the last ice age smoothed much of the taiga land mass. High plains cover most of the area with some mountain ranges dotted throughout. ... As glaciers receded, they also carved a plethora of lakes, rivers and streams into the vast open stretches that cover most of the taiga biome.
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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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['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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The forces of glacial and water erosion and deposition Glacial deposition is always drift, glaciers are powerful enough to carry tiny or large pieces of rock debris. Water erosion is the seperation of pieces of soil by the forces of water. Water deposition occurs when water deposits tiny sediments and particles.
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Corries are geological features that are formed through glaciation. The glacier sticks to the sides of the valley and, as it moves, pulls away large chunks of rock in a process known as plucking. During the colder months, water gets into cracks in the rocks and freezes.