movements of glaciers - flows

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  • Created by: lauren
  • Created on: 20-05-12 10:13

compressing flow

COMPRESSING FLOW

- a reduction in the gradient of the valley floor

- this leads to ice deceleration and the thickening of ice mass


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extending flow

EXTENDING FLOW

- the valley gradient becomes steeper

- ice begins to acclerate and produces more meltwater underneath the glacier

- this leads to the ice becoming thinner

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basal flow

BASAL FLOW/SLIDING

- the friction and pressure at the base and sides of the glacier results in melting

- this means that the ice can move more freely as it is more slippery

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