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Encyclopedia > Glacial lake
The Seven Rila Lakes in Rila, Bulgaria are typical representatives of lakes with glacial origin
The Seven Rila Lakes in Rila, Bulgaria are typical representatives of lakes with glacial origin

A glacial lake is a lake with origins in a melted glacier. Image File history File linksMetadata Download high-resolution version (1600x1200, 1185 KB) The Seven Rila Lakes in Bulgaria. ... Image File history File linksMetadata Download high-resolution version (1600x1200, 1185 KB) The Seven Rila Lakes in Bulgaria. ... The Seven Rila Lakes (Седем(те) Рилски езера) are a group of lakes of glacial origin, situated in the northwestern Rila Mountains in Bulgaria. ... Rila Mountain, Bulgaria The Rila is a mountain range in western Bulgaria. ... This article or section does not cite its references or sources. ... A glacier is a large, long-lasting river of ice that is formed on land and moves in response to gravity. ...


Glacial lakes can be green in colour. This is the result of ground up minerals (rock flour) supporting a large population of algae. [1]


A retreating glacier often leaves sections of ice behind, in hollows between drumlins or hills. As the ice age ends these will melt to create lakes. These lakes are often found surrounded by drumlins, along with other evidence of the glacier, such as moraines, eskers and erosional features such striations and chatter marks. Drumlin in Cato, New York A drumlin (Gaelic druim the crest of a hill) is an elongated whale-shaped hill formed by glacial action. ... For the landform that extends above the surrounding terrain and that is smaller than a mountain, see the article on mountain. ... Variations in CO2, temperature and dust from the Vostok ice core over the last 400 000 years For the animated movie, see Ice Age (movie). ... Moraine is the general term for debris of all sorts originally transported by glaciers or ice sheets that have since melted away. ... Eskers are long, winding ridges of stratified sand and gravel which occur in glaciated and formerly glaciated regions of Europe and North America. ... Severe soil erosion in a wheat field near Washington State University, USA. Erosion is the displacement of solids (soil, mud, rock and other particles) by the agents of wind, water or ice, by downward or down-slope movement in response to gravity or by living organisms (in the case of... Glacial grooves caused by the Wisconsin glaciation at Kelleys Island, Ohio Glacial striations or glacial grooves are gouges or grooves cut into the bedrock by glacial ice and meltwater as it slowly ground its way along during one of the Earths Ice Ages or by mountain glaciers. ...


References

  1. ^ Nova, Mystery of the Megaflood, [1], PBS

  Results from FactBites:
 
Avalanche Lake in Glacier National Park : Hiking, Fishing and Pictures (510 words)
Avalanche Lake is located in a cirque on the west side of the continental divide.
For those of you lucky enough to get to Avalanche Lake on a warm day soon after the trail opens in May, you will be treated to the sights and sounds of many avalanches, which is quite a sight if you have never seen one up close before.
The outlet of the lake, which is where the trail ends, receives a fair amount of fishing pressure by park standards.
Glacial lake outburst flood - Wikipedia, the free encyclopedia (850 words)
While all countries with glaciers are susceptible to this problem, central Asia, the Andes regions of South America and those countries in Europe that have glaciers in the Alps, have been identified as the regions at greatest risk [1].
The lake is growing larger every year due to the melting and retreat of the Trakarding Glacier, and has become the largest and most dangerous glacier lake in Nepal, with approximately 90 to 100 million m³ (117 to 130 million yd³) of water stored [2].
A Jökulhlaup is a glacier outburst flood, principally from an ice-dammed lake.
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