Valley glaciers and continental glaciers differ significantly in size, location, and flow patterns. Continental glaciers are vast ice sheets covering enormous land areas, while valley glaciers are smaller and confined to mountain valleys.
Key Differences:
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Size and Extent: Continental glaciers, like those in Greenland and Antarctica, are immense, covering vast stretches of land. In contrast, valley glaciers are much smaller, occupying individual valleys within mountainous regions. The provided reference highlights this difference, stating that continental glaciers cover "a great area of land," while valley glaciers "do not have much area coverage."
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Location: Continental glaciers are found at high latitudes, typically near the poles. Valley glaciers, however, are located at high altitudes in mountainous areas, regardless of latitude. They are confined to the valleys carved by their own erosional power.
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Flow Pattern: Continental glaciers flow outwards from their centers in all directions due to the weight of the accumulated ice. Valley glaciers, on the other hand, flow downwards along the valley's slope, following the pre-existing topography. The reference explicitly points out this contrast: continental glaciers "move outwards across the land," while valley glaciers "flow down a valley."
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Examples: Examples of continental glaciers include the Antarctic and Greenland ice sheets. Examples of valley glaciers include those found in the Himalayas, Alps, and the Rocky Mountains.
Summary Table:
Feature | Continental Glacier | Valley Glacier |
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Size | Enormous, covers vast areas | Relatively small, confined to a valley |
Location | High latitudes (near poles) | High altitudes (mountain valleys) |
Flow Pattern | Outward from the center in all directions | Downwards along a valley's slope |
Example | Greenland and Antarctic ice sheets | Glaciers in the Himalayas, Alps, Rocky Mountains |