water on the land- process and valley

HideShow resource information
View mindmap
  • 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
      • cross profile
        • cross section
    • 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
        • 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
      • transportation
        • traction
          • boulders roll, river bed
        • saltation
          • pebbles bounce
        • suspension
          • silt and caly carried in water- brown colour
        • solution
          • soluble=dissolve and carred
      • deposition
        • river drop load
        • reasons
          • loses velocity
          • increased load
          • shallower water=inside bend
          • river reached mouth

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »See all Weather and climate resources »