What are the characteristics of fluvioglacial deposits?
- Different grading characteristics
- Imbrication
- Sorting
- Stratification
Name the ice contact fluvio-glacial features.
- Kames
- Eskers
- Kame terraces
These features are formed by the action of meltwater from glaciers.
Name the proglacial fluvio-glacial features.
- Sandurs (outwash plains)
- Pro-glacial lakes
- Meltwater channels
- Kettleholes
What are the types of moraines in glacial deposition?
- Terminal moraines
- Recessional moraines
- Lateral moraines
- Medial moraines
Moraines are accumulations of debris deposited by glaciers.
Fill in the blank: Erratics are _______ features in glacial deposition.
depositional
Erratics are boulders that have been transported by glacial ice and deposited in a different location.
What are the types of glacial erosion?
- Abrasion
- Plucking
- Quarrying
- Basal melting
- Crushing
These processes shape the landscape by removing material from the earth.
Name the upland erosional features caused by glaciers.
- Ribbon lakes
- Hanging valleys
- Truncated spurs
- Glacial troughs
- Pyramidal peaks
- Aretes
- Corries
These features result from the erosive power of moving ice.
What are the periglacial processes that contribute to landform development?
- Solifluction
- Freeze thaw weathering
- Nivation
- Frost heave
- Meltwater erosion
- High winds
These processes occur in cold climates and affect the landscape.
Fill in the blank: The processes of ablation include…
- Melting
- Sublimation
- Evapouration
- Calving
- Avalaches
Ablation refers to the loss of ice or snow from a glacier.
What factors control the rate of movement of glaciers?
- Ice thickness
- Slope angle/gradient
- Bedrock permeability
- Altitude
- Variations in mass balance (Ice temp, rates of ablation and accumulation)
These factors influence how quickly glaciers can advance or retreat.
Processes that important for** glacial movement**
- Basal slip
- Regelation creep
- Internal deformation
Ice contact depostitional features
- Erratics
- Morraines (terminal, lateral, medial, reccessional)
- Drumlins
Lowland depositional features
- Lodgment till
- Ablation till
Periglacial features
- Ice wedge polygons
- Patterned ground (circles l stripes)
- Open system pingos
- Closed system pingos
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EQ1: How has climate change influenced the formation of glaciated landscapes over time?39
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Periglacial landscapes17
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EQ3: Glacial processes20
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EQ3: Formation of glacial landforms and landscapes?51
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EQ4: How are glacial landscapes used and managed today29
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EQ1 Keywords14
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EQ2 Keywords15
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EQ3 Keywords14
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Keywords (crib sheet)14
