River Processes In The Upper Course Flashcards
What is transportation?
When materials are moved from the rivers source to the mouth
What is erosion?
When rivers wear away the materials and banks and beds of the river channel
What is traction?
When large stones are dragged along the river bed
What is saltation
When small rocks are picked up and then dropped again
What is suspension
When small sediment particles are carried in the rivers current
What is solution?
Dissolved chemicals carried in the rivers source to, invisible to the human eye
Which 4 landforms are found in the upper course
- Narrow v-shaped valley
- interlocking spurs
- waterfalls
- gorges
Which 3 landforms are found in the middle course?
- asymmetrical channel
- floodplains
- meanders
What 4 landforms are found in the lower course?
- Ox bow lakes
- large floodplains
- levees
- deltas
Which processes take place in the upper course?
- vertical erosion
- weathering
Which processes take place in the middle course?
- lateral erosion
- transportation
Which processes take place in the lower course?
- transportation
- deposition
What’s the formation of a waterfall
1) undercutting
2) overhang collapses
3) plunge pool develops
4) waterfall retreats upstream due to erosion
5) steep, gorge like valleys
