FRANCOIS GOHIER / SCIENCE PHOTO LIBRARY FRANCOIS GOHIER / SCIENCE PHOTO LIBRARY
Glacier. Wall of ice consisting of frozen pillars of water standing upright, are seen on Moreno glacier. A glacier is usually a frozen river of ice moving down a valley, but the term is now also applied to a mass of snow and ice falling on high ground, compacting, and then moving outward and downward towards the sea. An ice-face or cliff, such as this, usually forms at the sides of the glacier by the shearing action of the valley sides as the ice moves along. An ice-face also usually forms at the front of the glacier. Moreno glacier is one of the Santa Cruz glaciers in Argentina.
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