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24 Cards in this Set
- Front
- Back
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What density does snow compact to if it survives a summers melting? |
0.5g cm3 |
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Different ways glaciers can move |
Internal deformation 1. Inter-granular 2. Laminar flow Basal slippage 1.regulation slip 2.creep 3.bed deformation |
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Name three types of crevasses |
Marginal Transverse Longitudinal |
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Name the factors affecting ice movement |
Gravity Gradient Latitude Thickness of ice Internal temperature The glacial budget Size of glacier |
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Name two types of mass movement |
Rock fall Slides |
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Name the types of erosion |
Plucking and abrasion |
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What does till and outwash mean? |
Till- directly deposited by glacier Outwash- deposited by meltwater |
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What is the diameter range and depth range of a Corrie |
Diameter- 0.5-1km Depth- 100m-400m |
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Name an example of a corrie |
Cwm idwal |
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Length range and width range of a u shaped valley |
Length- 1-50km Width- 0.5km- 3km |
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Example of arête |
Crib goch |
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Example of pyramidal peak |
Snowdon |
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Example of a u shaped valley |
Nant Francon valley |
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Length range of Roche moutonee and height range |
Up to 1km length Up to 100m high |
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Name the types of moraines |
Lateral Medial Terminal Ressional Push |
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Example of lateral moraine and the size |
Athabasca- 1.5km long and 124km high |
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Example of medial moraine and size |
Athabasca 20km long 100m wide |
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Example of terminal moraine and size |
Cromer ridge and 400m and 20 m wide |
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Example of a drumlin |
Helli field Yorkshire |
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Example of a till plain |
East anglia |
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5 characteristics of a warm based glacier |
Moves 2-3m per year Moves by basal slippage Steep gradient High accumulation of snow in winter High altitude |
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5 characteristics of a cold based glacier |
High latitude Low relief No melt water Limited ablation Below freezing all year |
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Example of warm based glacier |
Athabasca |
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Example of cold based glacier |
Merserve glacier |
