glacial+valley

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• glacial valley — ▪ geological formation also called  glacial trough   stream valley that has been glaciated, usually to a typical catenary, or U shaped, cross section. U shaped valleys occur in many parts of the world and are characteristic features of mountain… …   Universalium

• glacial-valley floor —    The comparatively flat bottom of a mountain valley predominantly mantled by till but which can grade from glacial scour (scoured rock outcrop) near its head to a thick mantle of till, and ultimately merging with alluvium or colluvium further… …   Glossary of landform and geologic terms

• glacial valley —   (also glacial trough) a broad, flat bottomed (U shaped) valley created by glacial erosion and deposition. The erosion widened, deepened and straightened the original river valley. The deposition created the flat bottom …   Geography glossary

• glacial valley — /gleɪʃəl ˈvæli/ (say glayshuhl valee) noun a U shaped valley formed by a moving glacier …  

• glacial-valley wall —    The comparatively steep, glacially scoured, concave sides of a u shaped, mountain valley mantled by colluvium with little or no till; (not preferred: colloquial: western USA) sometimes called a trough wall.    SW …   Glossary of landform and geologic terms

• 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

• Valley — In geology, a valley (also called a vale, dale, glen or strath and near or in Appalachia, a draw) is a depression with predominant extent in one direction. A very deep river valley may be called a canyon or gorge. The terms U shaped and V shaped… …   Wikipedia

• glacial — gla|cial [ˈgleıʃəl] adj [Date: 1600 1700; : Latin; Origin: glacialis, from glacies ice ] 1.) relating to ice and glaciers, or formed by glaciers ▪ a glacial valley ▪ glacial deposits 2.) a glacial look or expression is extremely unfriendly = ↑icy …   Dictionary of contemporary English

• glacial — adjective 1 involving ice and glaciers, or formed by glaciers: a glacial valley 2 a glacial look or expression is extremely unfriendly 3 extremely cold: a glacial wind glacially adverb …   Longman dictionary of contemporary English

• glacial groove —    A deep, wide, usually straight furrow cut in bedrock by the abrasive action of a rock fragment embedded in the bottom of a moving glacier; it is larger and deeper than a glacial striation, ranging in size from a deep scratch to a small glacial …   Glossary of landform and geologic terms

• glacial trough —   see glacial valley …   Geography glossary