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cirque definition geology

Definition of cirques in the Definitions.net dictionary. Talkin Tarn, Urswick Tarn, Malham Tarn). 12/07/2009. An arête is the edge that forms in the land from cirque erosion, or when two cirque glaciers form up against each other, creating that sharp edge. Information and translations of cirques in the most comprehensive dictionary definitions resource on … Cirques are concave, circular basins carved by the base of a glacier as it erodes the landscape. Cirque, (French: “circle”), amphitheatre-shaped basin with precipitous walls, at the head of a glacial valley. 1894. Definition. It generally results from erosion beneath the bergschrund of a glacier. circus; circle, circlet; a deep steep-walled basin on a mountain usually forming the blunt end of a valley… See the full definition cirque - WordReference English dictionary, questions, discussion and forums. noun. This snow accumulated in the pre-glacier hollow which eventually becomes a deep cirque due to plucking, abrasion and nivation. Plucking is the process of glacial erosion where rocks and debris from the bedrock became embedded into the base and the sides of the glacier. Yosemite Nature Notes 12: Glaciers. /sɜːk/. Geography a semicircular or crescent-shaped basin with steep sides and a gently sloping floor formed in mountainous regions by the erosive action of a glacier 2. cirque. Definition. cirque. cirque 1. Created. Term. A glacier is a large, perennial accumulation of crystalline ice, snow, rock, sediment, and often liquid water that originates on land and moves down slope under the influence of its own weight and gravity. Geology. (Physical Geography) Also called: corrie or cwm a semicircular or crescent-shaped basin with steep sides and a gently sloping floor formed in mountainous regions by the erosive action of a glacier. Literary Devices: Definition & Examples Introduction to Physical Geology: Help and Review Science 101: Intro to Natural Sciences Paternoster lakes are created by recessional moraines, or rock dams, that are formed by the advance and subsequent upstream retreat and melting of the ice. (Archaeology) archaeol an obsolete term for circle 11. A cirque (French: ; from the Latin word circus) is an amphitheatre-like valley formed by glacial erosion. Meaning of cirque . Meaning of cirques. Typically, a cirque has a lip at its lower end. Arch, Utah. Courty, the president, was known only since the meeting at the Cirque. (geology) jump to other results. What are the dates for the two most recent ice ages? I went to the Cirque with my cousin, and we dined in the Palais Royal. Undergraduate 1. Geology vocabulary, Geology word list - a free resource used in over 40,000 schools to enhance vocabulary mastery & written/verbal skills with Latin & Greek roots. ; Deep and narrow canons are common, and, at higher levels, glaciers, carved out amphitheatres, or " cirques" and " U "-shaped troughs. North-looking oblique aerial photograph showing an ice and snow-filed cirque in the accumulation area of the Fairweather Range, east of Mount Fairweather, Glacier Bay National Park, Alaska. 11) poetic a circle, circlet, or ring Word Origin for cirque Cirque meaning and definition of cirque. Learn more. We agreed that ' cirque ' should be defined morphologically Level. There are different ways to classify landforms, but there are three general categories: … The following texts are the property of their respective authors and we thank them for giving us the opportunity to share for free to students, teachers and users of the Web their texts will used … cirque definition: 1. a hollow area almost surrounded by steep slopes at the top of a glaciated valley: 2. a hollow…. ( sɜːk) n. 1. A horn results when glaciers erode three or more arêtes, usually forming a sharp-edged peak. What does cirques mean? /sɜːrk/. —Credit: Photograph by Harry Fielding Reid. The term is French and is derived from the Latin word circus. late 17th cent. cirques definition: Noun 1. plural form of cirque... Local glaciation has modified the higher levels of the Bighorn Mountains, giving glacial cirques, alpine peaks and many mountain lakes and waterfalls. Much like "continent," "planet" is a word without a precise definition, with history and culture playing as much of a role as geology and astrophysics Click on the first letter of the word you would like to look up Alternative names for this landform are corrie (from Scottish Gaelic coire, meaning a pot or cauldron) and cwm (Welsh for 'valley'; pronounced ). It generally results from erosion beneath the bergschrund of a glacier. a round hollow area in the side of a mountain see also corrie, cwm. The word is derived from the Old Norse word tjörn ("a small mountain lake without tributaries") meaning pond. In parts of Northern England - predominantly Cumbria but also areas of North Lancashire and North Yorkshire - 'tarn' is widely used as the name for small lakes or ponds, regardless of their location and origin (e.g. Cirque . Three 2.2 by, 700 my (snowball earth), 500my: Term. 3. poetic a circle, circlet, or ring. A cirque is a landform found among mountains as a result of alpine glaciers. (originally referring to … All Free. Because the term \"talus\" incorporates the concept of a pile, many geologists prefer it to \"talus pile\" and reserve the term \"talus slope\" for specific reference to the surface of the talus. How many glacier ages were during Precambrian? Good example of a cirque : A cirque (fig. It took some time for opposition to build up to the operational definition of ' cirque' pre-circulated by Evans, but once criticism started discussion became lively and many alterations were made. The highest cliff often is called a headwall. Word Origin. The Matterhorn in Switzerland is a horn carved away by glacial erosion. My family had also gone to the Cirque Napolon and came to find me at once. Corrie definition: a round hollow in a hillside | Meaning, pronunciation, translations and examples No available dictionary or textbook definition of ' glacial cirque' serves this purpose. 2. Typically, glaciers exist and may even form in areas where: mean annual temperatures are … 8) is shaped something like an office arm-chair. Paternoster lakes occur in alpine valleys, climbing one after the other to the valley's head, called a corrie, which often contains a cirque lake. Yosemite National Park is famous for its spectacular glacially carved landscape. When more than two arêtes meet, this is a horn. Although glaciers have come and gone many times in the past, there are still two active glaciers near Yosemite's highest peaks. A cirque may also be a similarly shaped landform arising from fluvial erosion. Also called: corrie, cwm a semicircular or crescent-shaped basin with steep sides and a gently sloping floor formed in mountainous regions by the erosive action of a glacier archaeol an obsolete term for circle (def. A moraine is material left behind by a moving glacier.This material is usually soil and rock.Just as rivers carry along all sorts of debris and silt that eventually builds up to form deltas, glaciers transport all sorts of dirt and boulders that build up to form moraines. 1 Geology A half-open steep-sided hollow at the head of a valley or on a mountainside, formed by glacial erosion. They may be up to a square kilometre in size, situated high on a mountainside near the firn line, and typically are partially surrounded on three sides by steep cliffs.

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