BERNHARD EDMAIER / SCIENCE PHOTO LIBRARY BERNHARD EDMAIER / SCIENCE PHOTO LIBRARY
Glacier calving. View of a glacier calving as it reaches the sea. Calving is the term used to describe the process of iceberg "birth" by a glacier. The icebergs formed in this way are called "calves". Glaciers which arrive at the coast tend to become less stable, as they float on the water. Cracks and fractures weaken the glacier, and many chunks of ice fall off into the sea. This is one of the main methods of iceberg formation. This is the Perito Moreno Glacier, Argentina.
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