Glacial Erosion Features Flashcards
Name the sandpapering action of rocks in the glacier on the valley sides
Abrasion
What is it called when ice freezes to rocks and plucks them out when the glacier shifts
Plucking
What is it called when meltwater enters cracks in rocks, freezes then expands and shatters them
Freeze thaw
What is it called when a V-shaped river valley is deepened and widened by a glacier to form this new valley shape
U-shaped valley
Name the stream in a U-shaped valley which could not possibly have eroded the valley itself
Misfit stream
Name a U-shaped valley near Thornhill
Dalveen Pass
Name the interlocking valley spurs are cut off by glacial erosion leaving these features
Truncated Spurs
Name the deep bowl shaped hollow formed by glacial erosion, normally in the shady North facing side of the mountain
Corrie
What is it called when a peak is formed by three corries eroding back to back
Pyramidal Peak
A knife edged ridge formed by two corries eroding back to back
Arete
Give an example of a corrie lochan in a corrie in the lake district
Red Tarn
What is it called when tourists argue with farmers or foresters over access to the countryside
Land-use Conflict
What is it called when the ice trapped in a corrie moves in a rotational motion towards the exit at the corrie lip.
Rotational slip
Name an example of a pyramidal peak.
Ben Lomond
How is a pyramidal peak formed?
Three back to back corries eroding a mountain
