:"Mudslide redirects here, it is also the name of a cocktail."A mudflow or mudslide is the most rapid (up to 80 km/h / 50 mph) and fluid type of downhill
mass wasting. It is a rapid movement of a large mass of mud formed from loose earth and water. Similar terms are debris flow(e.g. in high mountains), mudslide (not very liquid) lahars and mud stream (e.g. from volcanoes; see also lahar).
However, these terms show a broad variety
water content(from loamy mud up to almost liquid),
* in material (wet soil, sandy
sediments and/or silt, dirt, rock debris, volcanic ash, small plants and even trees)
* and in length, total
A radical method of defending a city against mud or debris flows is by building a strong enough dam, with a large enough reservoir, upstream of the city in the valley from which the mud flows would come. An example is the
Medeu Damoutside of Almaty, Kazakhstan.
moisture content, solifluction, water saturation, torrent
slope, failure, gully, alluvial plain
* lava eruption,
lava flow, Lahar
Glacial lake outburst flood
* [http://videos.howstuffworks.com/mudslide-video.htm How Mudslide works]
* [http://www.horizontaldrill.com Directed Technologies Drilling for mudslide prevention]
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