glacial erosion


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glacial erosion

[¦glā·shəl ə′rō·zhən]
(geology)
Movement of soil or rock from one point to another by the action of the moving ice of a glacier. Also known as ice erosion.
References in periodicals archive ?
2005, Quaternary relief generation by polythermal glacier ice: a field calibrated glacial erosion model: Earth Surface Processes and Landforms, v.
2006, Glacial erosion and sediment dispersion from detrital cosmogenic nuclide analyses of till: Quaternary Geochronology, v.
Washington, Nov 18 (ANI): A new research has proven that glacial erosion can not only change internal mountain structure, but also bring out a structural response to plate tectonics.
The Bow River coal outcrop occurs roughly 80-100km north west following the same topographic uplands leading edge which is patterned to the Canadian Shield boundaries lying north west to south east as both the Narrow Hills and Pasquia Hills are suggesting that the coal occurrences at the Bow River to the north west Wapawekka Lake and Narrow Hills central and the Pasquia Hills south east are associated with the same geological structures that would allow coal to have developed and remain intact through the glacial erosion.
Because glacial erosion has shaped so much of Atlantic Canada's landscape, one might expect that chemical weathering of the bedrock has been relatively insignificant since the last glaciation.
As the eskers of the last glaciation are associated with the areas of glacial erosion, they were probably eroded and incorporated in subglacial till.
Different reasons have been set forth for the formation of these palaeoincisions: (1) preglacial or interglacial river erosion, (2) glacial erosion of the Pleistocene glaciers, (3) glacial and glaciofluvial erosion during repeated advances and retreats of the Pleistocene glaciers.