Erosion and Transport Flashcards
Abrasion also called…
corrasion is the wearing away of the bed and bank by the load carried in the river. Increases as velocity increases.
Attrition is…
the wearing away of the load carried by river creates smaller rounder particles.
Hydraulic action is…
the force of air and water on the sides of the river and cracks. Includes direct force of water and cavitation.
Cavitation is…
the force of air exploding, creating tiny jets of fast-moving water.
Solution or…
corrosion is the removal of chemical ions.
Factors affecting the rate of erosion:
- load(the heavier and sharper, greater erosion)
- velocity
- gradient
- geology
- pH
- human impact
Suspension is…
movement of smallest particles slits and clay.
Saltation is…
transport of larger particles sands, gravels.
Traction is…
transport of large pebbles along the river bed.
Solution is…
transport of dissolved material in water.
The capacity of stream refers to…
the largest amount of od debris that a stream can carry.
Competence refers to…
the diameter of the largest particles that can be carried
