glacial movement

glacial movement
  two types:
  basal slipping - pressure between the ice and the surface creates friction and heat which slightly melts ice in contact. This lubricates the underside of the glacier allowing it to flow.
  internal distortion - gravitational forces can cause some parts of the glacier to move more quickly then others which can eventually lead to cracks appearing in the ice.

Geography Dictionary & Glossary for Students \\ ITS Tutorial School (ITS) - Hong Kong.

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  • Glacial motion — is the motion of glaciers, which can be likened to rivers of ice. It has played an important role in sculpting many landscapes. Most lakes in the world occupy basins scoured out by glaciers. Glacial motion can be fast (up to 30 m/day, observed on …   Wikipedia

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  • Glacial landforms — Many now familiar glacial landforms were created by the movement of huge sheets of ice called continental glaciers during the Pleistocene Epoch (more commonly called the Ice Age.) Erosional landformsAs the glaciers expanded, due to their… …   Wikipedia

  • Glacial history of Minnesota — The glacial history of Minnesota is most defined since the onset of the last glacial period, which ended some 10,000 years ago. Within the last million years, most of the Midwestern United States and much of Canada were covered at one time or… …   Wikipedia

  • movement — Synonyms and related words: Alexandrine, American, Art Nouveau, Ashcan school, BM, Barbizon, Bauhaus, Bolognese, British, Cobra, Dutch, Flemish, Fontainebleau, French, Italian, Mannerist, Milanese, Modenese, Momentum, Neapolitan, New York, Paduan …   Moby Thesaurus

  • Glacial striation — Glacial striations or glacial grooves are scratches or gouges cut into bedrock by process of glacial abrasion. Glacial striations usually occur as multiple straight, parallel grooves representing the movement of the sediment loaded base of the… …   Wikipedia

  • glacial — [glā′shəl; ] chiefly Brit [, glā′sē əl] adj. [L glacialis, icy, frozen < glacies, ice < IE * glag , partial redupl. of base * gel , to freeze > COLD] 1. of or like ice or glaciers 2. of or produced by a glacier or a glacial epoch or… …   English World dictionary

  • glacial landform — ▪ geology Introduction  any product of flowing ice and meltwater. Such landforms are being produced today in glaciated areas, such as Greenland, Antarctica, and many of the world s higher mountain ranges. In addition, large expansions of present… …   Universalium

  • glacial — adjective Etymology: Latin glacialis, from glacies Date: 1656 1. suggestive of ice: as a. extremely cold ; frigid < a glacial wind > b. devoid of warmth and cordiality < a glacial handshake > c. coldly imperturbable …   New Collegiate Dictionary

  • Glacial till plains (Ohio) — The Glacial till plains are in the Northwest of Ohio. This region is fertile and has gently rolling moraine hills created by the movement of glaciers. Glaciers created the Ohio River.till oMJIOPHF*)PNMJASPRUIFHN*ENMIKL …   Wikipedia

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