Summary Fluvial Process Grade 12 Geography IEB

Fluvial Process

River Profiles 3
Longitudinal Profile of River 3
Stages of river on longitudinal profile 3
Temporary Base Level 4
Transverse Profile of River 4

Fluvial Landforms 6
2 main erosion processes 6
Hydraulic action 6
Abrasion 6
3 ways eroded material is carried 6
Traction 6
Saltation 6
Suspension 6

River Grading 10
Graded river 10
Overgraded & undergraduate rivers 10
Overgraded 10
Undergraded 10

Rejuvenation of Rivers 11
What is it 11
Process of rejuvenation 11
Fluvial landforms result from rejuvenation 11

River Capture 12
Abstraction of drainage basin 12
Process of river capture 12
Features of capture 13
Captor stream 13
Captive stream 13
Misfit stream 13
Elbow of capture 13
Wind gap 13
Knickpoint waterfall 13
Results of capture 13

, Superimposed & Antecedent Drainage Patterns 14
Superimposed drainage pattern 14
Antecedent drainage pattern 14