Assertion: glacier's base | /r/HasProperty | separated by thin layer of water
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text: It goes down quite a bit glaciers formed in mountainous areas are called valley glaciers Antarctica is covered by the earth's largest continental ice sheet a glacier will move by sliding when the base of the ice and rock are separated by a thin layer of water when a glacier moves by internal plastic flow its center moves fastest Glacial erosion may produce a bowl-shaped depression known as a cirque