Outwash plain

Skeiðarársandur in Iceland, viewed from its eastern margin at the terminus of Svínafellsjökull glacier

Glacial outwash sediment, Knud Rasmussen Glacier, Greenland.

The western edge of Skeiðarársandur in Iceland shows the diffuse drainage channels typical of sandur.

Unimpeded by topographic obstructions, sand-bearing katabatic winds can be fierce enough on Skeiðarársandur to strip paint from cars.[4] Here, sand is blown in the air in front of the peak Lómagnúpur.

An outwash plain, also called a sandur (plural: sandurs), sandr or sandar, is a plain formed of glacial sediments deposited by meltwater outwash at the terminus of a glacier. As it flows, the glacier grinds the underlying rock surface and carries the debris along. The meltwater at the snout of the glacier deposits its load of sediment over the outwash plain, with larger boulders being deposited near the terminal morraine, and smaller particles travelling further before being deposited. Sandurs are common in Iceland where geothermal activity accelerates the melting of ice flows and the deposition of sediment by meltwater. Sandurs derive their name from Skeiðarársandur in Iceland, the largest outwash plain in the world with an area of 1,300 km (500 sq mi).

单词	Outwash plain
释义	Outwash plain 英语百科 Outwash plain An outwash plain, also called a sandur (plural: sandurs), sandr or sandar, is a plain formed of glacial sediments deposited by meltwater outwash at the terminus of a glacier. As it flows, the glacier grinds the underlying rock surface and carries the debris along. The meltwater at the snout of the glacier deposits its load of sediment over the outwash plain, with larger boulders being deposited near the terminal morraine, and smaller particles travelling further before being deposited. Sandurs are common in Iceland where geothermal activity accelerates the melting of ice flows and the deposition of sediment by meltwater. Sandurs derive their name from Skeiðarársandur in Iceland, the largest outwash plain in the world with an area of 1,300 km (500 sq mi).
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