River Processes Flashcards
What is hydraulic Action?
Where the force of the water enters cracks in the bed and banks and puts it under pressure causing erosion.
What is attrition?
Rocks and stones hit each other breaking up into smaller pieces.
What is solution?
Soluble minerals in the rock water wear away in water.
What is abrasion?
Rocks and stones scrape against the bed and bank and act like sandpaper wearing away the rock.
What process is attrition?
Erosion
What process is Hydraulic action?
Erosion
Why process is Abrasion?
Erosion
What two processes is Solution?
Erosion and Transportation
What are the 4 processes of erosion?
Attrition
Hydraulic Action
Abrasion
Solution
What is Solution?
Transportation
Minerals are dissolved in the water and carried in Solution.
What is suspension?
Fine, light material is carried along in the water.
What is Saltation?
Small pebbles and stones are bounced along the river bed.
What is traction?
Large boulders and rocks are rolled along river bed.
What process is Suspension?
Transportation
What process is saltation?
Transportation
What process is traction?
Transportation
What are the 4 processes of transportation?
Solution
Suspension
Saltation
Traction
What is deposition?
Where energy is low, the load (sediment) is dropped by the river such as Deltas (at the river mouth)
What is this process of erosion?
‘Rocks and stones hit each other breaking up into small pieces’
Attrition
What is this process of erosion?
‘The force of the water enters cracks in the bed and banks and puts it under pressure, causing erosion’
Hydraulic Action
What is this process of erosion?
‘Soluble minerals in the rock water wear away in the water’
Solution
What is this process of erosion?
‘Rocks and stones scrape against the bed and bank and act like sandpaper wearing away the rock’
Abrasion
What is this process of Transportation?
‘Minerals are dissolved on the water and carried in solution’
Solution
What is this process of transportation?
‘Fine, light material is carried along in water’
Suspension
