Glacial Till & Outwash Plain

Geography: KS3, topic 10.1.7

Glacial Till and Outwash Plains

When glaciers melt, meltwater streams flow outwards from the glacier and the rock debris that they were transporting gets deposited

Glacial till

Glacial till

  • Lots of rock debris can be found inside glaciers.
  • When this rock debris is deposited at a glacier’s snout, we call it glacial till.
  • Glacial till is usually made up of a combination of rocks and clay.
Outwash plains

Outwash plains

  • Large amounts of rock debris are transported away from glaciers by meltwater streams.
  • This debris ranges from heavy rocks to much lighter and smaller particles.
  • These smaller particles are transported furthest. The plains that form when they are eventually deposited are known as outwash plains.

Test yourself on Glacial Till & Outwash Plain

  • What do we call the rock debris that gets deposited at a glacier's snout?

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