River Processes

June 2015

Braiding and Alluvial fans

By |2017-01-17T11:21:41+02:00June 21st, 2015|Notes, O Level Geography, Ordinary Level Notes, River Processes|

Braided River. Image credit patternsofthefuture.com

Braided River. Image credit patternsofthefuture.com ZIMSEC O Level Geography Notes: Braiding and Alluvial Fans

Braiding

  • Braiding occurs typically during the dry season when a river’s discharge is greatly reduced.
  • The river may be split into several channels which rejoin and split again.
  • These are known as braided river channels.
  • Rivers […]
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Landforms resulting form river processes

By |2017-01-17T11:21:44+02:00June 19th, 2015|Notes, O Level Geography, Ordinary Level Notes, River Processes|

Rapids near Niagara Falls. Image credit NiagaraFallsLive.com

Rapids near Niagara Falls. Image credit NiagaraFallsLive.com ZIMSEC Geography Notes: Landforms resulting from river processes
  • A river through its processes of erosion, transportation and deposition forms several landforms.
  • These can be broadly divided into those landforms resulting from erosion and deposition.

Landforms […]

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Factors affecting erosion, transportation and deposition

By |2017-01-17T11:21:46+02:00June 19th, 2015|Notes, O Level Geography, Ordinary Level Notes, River Processes|

Laminar Flow. Image credit gjhikes.com

Laminar Flow. Image credit gjhikes.com ZIMSEC O Level Geography Notes
  • The following factors affect the river’s energy and ability to erode, transport and deposit its load.
  • Type of flow, gradient of channel, volume/discharge, cross-sectional channel shape, channel roughness.

Type of flow

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