Ice erosion
Ice erosion is caused by movement of ice, typically as glaciers. Glaciers can scrape down a slope and break up rock and then transport it, leaving moraines, drumlins and glacial erratics in their wake, typically at the terminus or during glacier retreat. Ice wedging is the weathering process in which water trapped in tiny rock cracks freezes and expands, breaking the rock. This can lead to gravity erosion on steep slopes. The scree which forms at the bottom of a steep mountainside is mostly formed from pieces of rock broken away by this means. It is a common engineering problem, wherever rock cliffs are alongside roads, because morning thaws can drop hazardous rock pieces onto the road.
2006-08-21 04:04:44
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answer #1
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answered by Aaron the Great. 2
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Glaciers are very heavy and the weight of gravity causes them slowly to slide off of mountains into lower elevations (where the edges melt). That sliding makes a lot of friction with the ground under the glacier. That friction erodes (eats away) the rocks and ground under the glacier. That can carve out valleys, as was the case in Yosemite Valley.
2006-08-21 11:05:31
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answer #2
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answered by Larry 6
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this is a very informative site on glacial erosion...http://www.physicalgeography.net/fundamentals/10af.html
definition is there too
hope this helps :)
2006-08-21 11:45:11
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answer #3
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answered by Anonymous
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When glacial is broken?
2006-08-21 11:04:52
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answer #4
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answered by Anonymous
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hey dana its kenna well i kinda no cuz me and u did some reseach on it. well its hard to explain read the stuff we printed in class its kinda when glacersmelt and stuff like that have fun reading.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
2006-08-21 19:11:03
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answer #5
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answered by gatorgirly99 1
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