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PROCESSES OF EROSION

Hydraulic action - when water hits the bed and the banks.

Abrasion - The load that the river carries hits the bed and banks.

Attrition - When stones and boulders knock against each other, overtime weakening causing bits to fall off.

Solution - when the river flows over rocks which are soluble in rainwater

PROCESSES OF TRANSPORTATION:

Traction - Method for moving the largest material, its rolled along because its too heavy to lose contact with the bed.

Saltation - Small stones bounce along the bed, leaves the river bed in a hopping motion

Suspension - Means of carrying fine material in the water, it floats and moves along with the river.

Solution - Dissolved load

KEY TERMS:

EROSION - Sculpting of a landscape by for example, rivers by the removal of material.

TRANSPORTATION - Carrying sediment downstream from where its been eroded to where it is deposited.

DEPOSITION - Dumping of sediment which has been transported by the river.

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