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Surging Glaciers (Variegated Glacier (Timescale: over a few weeks (doubled…
Surging Glaciers
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Hydraulic Surging Mech
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Termination: Surging ceases when
- Drainage possible again
- Thinner ice ∴ less driving stress to flow
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Surge
Cycle
- Periodic surging - rapid flow
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Hydraulic
Surge Cycle
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Glacier thickening --> Meltwater cannot drain away easily
∴ pressurised water at base which facilitates surge
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