water on the land- process and valley
- Created by: zhzstudent
- Created on: 08-02-14 14:10
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- Water On the Land
- river valley
- course
- def-path of river
- upper
- source
- middle
- lower
- mouth
- shape of valley change due to erosion and deposition
- dominant process
- long profile
- gradient change
- steep
- upper course
- v- shaped,anrrow sshallow channel
- cross section
- medium
- middle course
- gentle slope, mider deeper channel
- gentle
- wide, flat valley deep wide channel
- lower course
- steep
- gradient change
- cross profile
- cross section
- course
- processes
- erosion
- 2
- vertical
- deepen valley and channel
- form v-shaped
- dominant in upper course
- lateral
- widen valley and channel
- dominant inmiddle and lower course
- vertical
- 4
- Hydraulic action
- force of water break rock from channel
- attrition
- rocks smash into eachotherer
- smoothed and round off edges
- solution
- river dissolve chalk limestone
- Hydraulic action
- 2
- transportation
- traction
- boulders roll, river bed
- saltation
- pebbles bounce
- suspension
- silt and caly carried in water- brown colour
- solution
- soluble=dissolve and carred
- traction
- deposition
- river drop load
- reasons
- loses velocity
- increased load
- shallower water=inside bend
- river reached mouth
- erosion
- river valley
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