Glacial striations or abrasion scratches on a surface of basalt bedrock, Dyrholaey Headland, Southern Iceland

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This slab of basalt, on the surface of the Dyrholaey Headland, has been polished and scratched or abraded by the movement over it of a glacier sole or base heavily charged with rock debris. Ice movement was top to bottom or north to south. Such striae or glacial grooves are a clue to the direction of ice movement in the last glacial phase of the Pleistocene Ice Age, some 15,000 years ago.

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Size: 5861px × 3892px
Location: Dyrholaey Headland, Myrdalur, Southern Iceland
Photo credit: © robert harrison / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: abrasion, age, basalt, bedrock, direction, dyrholaey, erosional, geography, geology, glacial, glaciers, grooves, ice, iceland, land, movement, phase, pleistocene, processes, scenery, scratches, striae, surface, tourism, travel