Flashcards
Geography
Cards in this deck (14)
- 1WeatheringRocks are worn down usually by the weather (in situ.)
- 2ErosionThe wearing down of rocks- usually in rivers or on coasts
- 3TransportationMovement of eroded material
- 4DepositionDropping of material that has been carried.
- 5What are the four types of erosion?Corrosion/ Sollution
Abrasion
Attrition
Hydraulic action - 6What happens in sollution?Water disolves soluble materials.
- 7What happens in abrasion?The bed load in the river eroads away the river bed and river banks.
- 8What happens in attrition?Bed load wears other bed load down.
(This doesn't change the river shape.) - 9What happens in hydraulic action?The force of fast flowing water crashes against river banks.
- 10What are the four types of transporation?Solution
Suspension
Traction
Saltation - 11What happens in solution?minerals are dissolved in the water and carried along in solution.
- 12What happens in suspension?Fine, light material e.g. sand is carried along in water.
- 13What happens in traction?Large boulders and rocks are rolled along the river bed.
- 14What happens in Saltation?Small pebles and stones are bounced along the river bed.