KAJ R. SVENSSON / SCIENCE PHOTO LIBRARY KAJ R. SVENSSON / SCIENCE PHOTO LIBRARY
Glacial erosion. Grooves in bedrock from the movement of a glacier. This type of erosion is called abrasion. As a glacier moves across land, it picks up debris, which is carried with the ice. This carves deep scratches into the bedrock. Photographed on Victoria Vancouver Island, in British Columbia, Canada.
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