External geological processes
ICE
SEA
WIND
2 erosión processes
Types of glacier
Glaciar landforms
Definition of
Depositional landforms
Parts of the alpine glacier
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
1- Alpine glaciers
2- Continental glaciers
2- Abrasion
1- Plucking
U-shaped valley
Hanging valley
Lake
Arête
Horn
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
Moraine, used to refer to the material that a glacier is carrying
Lateral moraines
Medial moraines
Terminal moraines
Erosional landforms
Definitions of
Two conditions of erosion
Depositional landforms
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.
Honeycombs
Desert pavement
Mushroom rocks
Presence of loose material
Absence of vegetation
Dunes
Loess
Landforms caused by erosion
2 methods for transport of eroded material
Two water movements causing erosion
Landforms caused by deposition
Waves
Tides
Wave-cut platforms
Cliffs
Natural bridges
Seastacks
Headlands and bays
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
Deltas
Tombolos
Spits
Marshes
Beaches
Sandbars
Lagoons