21 terms

Landforms created by erosion and deposition

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Sea cliff
Formed when waves erode and undercut rock to produce steep slopes
Sea stack
Offshore columns of rock that were once connected to the mainland
Sea arch
When wave action continues to erode a sea cave, cutting completely through the rock
Headland
Finger shaped projections that form when cliffs made of hard rock erode more slowly than surrounding rock.
Wave-cut terrace
When a sea cliff is worn back producing a level platform beneath the water at the base of the cliff
Beach
any area of the shoreline made up of material deposited by waves
Sandbar
Underwater or exposed ridge of sand, gravel or shell material
Barrier spit
Sandbar connected to the shoreline
Loess
Fine sediment blown by the wind
Dune
mounds of wind-deposited sand
Glacial horn
sharp, pyramid shaped peaks that form when three or more cirque glaciers erode a mountain
Glacial cirque
Bowl shaped depressions where glacial ice cuts into mountain walls
Glacial arete
Jagged ridges that form between two or more cirques cutting into the same mountain
U-shaped valley
Forms when a glacier erodes a river valley from its original V shape to a U shape
Hanging valley
Small glacial valleys that join the deeper main valley
Glacial till
unsorted rock material left by glaciers when they melt
Moraines
ridges of till deposits that form along the sides or at the end of glaciers
Kettle
A small lake or pond formed by a block of ice from a glacier that slowly melted
River Delta
a landform that forms at the mouth of a river, where the river flows into an ocean, sea, estuary, lake, or reservoir. Deltas form from deposition of sediment carried by a river as the flow leaves its mouth.
Natural Levee
a deposit of sand or mud built up along, and sloping away from, either side of the flood plain of a river or stream
Floodplain
a nearly flat plain along the course of a stream or river that is naturally subject to flooding
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