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External geological processes - Coggle Diagram
External geological processes
ICE
2 erosión processes
2- Abrasion
1- Plucking
Types of glacier
1- Alpine glaciers
2- Continental glaciers
Glaciar landforms
U-shaped valley
Hanging valley
Lake
Arête
Horn
Definition of
Iceberg, large piece of ice that has broken off a glacier and fallen into a lake or the sea
Glacier, thick mass of ice that moves over land
Depositional landforms
Moraine, used to refer to the material that a glacier is carrying
Lateral moraines
Medial moraines
Terminal moraines
Parts of the alpine glacier
Cirque, where the snow accumulates and its transformed into ice
Terminal zone, the ice melts and the material carried by the glacier is deposited
Glacial valley, where the ice descends
SEA
Landforms caused by erosion
Wave-cut platforms
Cliffs
Natural bridges
Seastacks
Headlands and bays
2 methods for transport of eroded material
Waves drag material in towards the beach in a continuous movement that makes the particles round and smaller
Longshore drift transport material by pulling it along the coastline
Two water movements causing erosion
Waves
Tides
Landforms caused by deposition
Deltas
Tombolos
Spits
Marshes
Beaches
Sandbars
Lagoons
WIND
Erosional landforms
Honeycombs
Desert pavement
Mushroom rocks
Definitions of
1- Deflaction, when the wind detaches and removes loose particles from the surface of the Earth in a process called deflation
2- Abrasion, the transported material crashes into the rocks and the impact and friction of this material on rocks polishes and wears away at them.
Two conditions of erosion
Presence of loose material
Absence of vegetation
Depositional landforms
Dunes
Loess