Erosional Landforms Flashcards
What are the 3 types of glacial landform?
Macro
Meso
Micro
Macro scale erosional landforms
Cirques
Aretes
Pyramidal peaks
Glacial troughs
Meso scale erosional landforms
Roches moutonnées
Crag and tail
Subglacial meltwater channels
Micro scale erosional landforms
Striations
Types of landform order of scale
Macro
Meso
Micro
Which landforms may occur in relation to a glacial trough?
Truncated spurs
Hanging valleys
Ribbon lakes
Paternoster lakes
Describe the formation of a cirque
Erosion of a nivation hollow
Snow accumulates + compaction
Freeze thaw, chemical weathering + melting snow remove material
What is scree?
Mass of loose stones that cover a slope on a mountain
Hanging Valley
Tributary Glacier
Valley erosion occurs perpendicular to trough
Leaves 2nd valley ‘above’ trough