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Difference between continental glaciers and valley glaciers? Continental glaciers are known as ice sheets and cover extensive  areas of Antarctica and Greenland. Valley glaciers come from these  ice fields or mountain glaciers and sliâ¦de down the mountainsides  like long ribbons.
Rift valleys are sometimes called grabens, which means âditchâ in German. While there is no official distinction between a graben and a rift valley, a graben usually describes a small rift valley. A rift valley is a lowland region that forms where Earthâs tectonic plates move apart, or rift.