1.3 River channel processes and landforms Flashcards
What is meant by abrasion?
The wearing away of the bed and bank by the load carried by the river..
Abrasion
Wearing away of the bed and bank by the load carried by a river
Attrition
The wearing away of the load carried by a river
Hydraulic action
Corrosion/Solution
removal of chemical ions, especially calcium
Load
the heavier and sharper the load, the greater the potential for erosion
hydraulic action
this is the sheer power of the waves as they smash against the cliff. Air becomes trapped in the cracks in the rock and causes the rock to break apart
PH
rates of solution are increased when the water is more acidic
What is meant by attrition?
The wearing away of the load by a river.
What is meant by hydraulic action?
The force of air and water on the sides of the rivers and in cracks.
What is meant by corrosion or solution?
The removal of chemical ions - especially calcium
What is meant by suspended load?
It is how the smallest particles are carried in supension.
What is meant by salted load?
The transport of larger particles in a series of ‘hops’
What is meant by bed or tracted load?
How peebles are shunted along the bed.
What is meant by solution (transport) ?
How the material is carried in areas of calcareous rock.