Introduction of Erosion Landform ( 02. Canyon )

                                                                                                                                                      Back to Erosion Landform
Blyde river canyon
Blyde river canyon
  • A canyon called as gorge.
  • It is a deep ravine.
  • Between cliffs  from the landscape by a river.
  • Formed by a process of long-time erosion.
  • The cliffs form,harder rock strata are resistant to erosion,weathering.
  • Then exposed on the valley walls.
  •  The word canyon is Spanish in origin.

Canyon Sainte Anne
Canyon Sainte Anne

  • Canyons are common in arid areas than wet areas.
  • Physical weathering has a greater effect in arid zones.
  • Wind & water combine to erode less resistant materials (shales).
  • The freezing & expansion of water serves to help form canyons.
  • Water seeps into cracks between the rocks.
  • Then freezes, pushing the rocks apart.
  • Eventually large chunks  break off the canyon walls.
  • This process known as frost wedging.
  • Canyon walls are formed of ;
Black Canyon of the Gunnison
Black Canyon of the Gunnison
  • Submarine canyons form underwater at river mouth.

  • Large rivers run through canyons.

  • These are called entrenched rivers.

  • They are unable to easily alter their course;
   -Colorado River,Southwest
   -Snake River,Northwest

  • Canyons form of limestone rock.

  • Limestone is extent soluble.

  • A canyon refer to a rift between two mountain peaks;
                     Rocky Mountains

Fish river canyon
Fish river canyon

  • Largest canyon" is Himalaya.

  • Deepest canyon-Yarlung Tsangpo Grand Canyon (Tsangpo Canyon)5,500 m.

  • Kali Gandaki Gorge,Nepal ,6400 m.

  • Grand Canyon,Northern Arizona (volume-4.17 trillion cubic metres)

  • The second largest canyon is Fish River Canyon,Namibia.

  • Copper Canyon,Chihuahua, Mexico-deeper and longer than the Grand Canyon.

  • Black Canyon of the Gunnison, Colorado, United States
  • Blyde River Canyon, Mpumalanga, South Africa
  • Canyon de Chelly, Arizona, United States
  • Canyon Sainte-Anne, Quebec, Canada
  • Charyn Canyon, Kazakhstan
Matka Canyon
Matka Canyon

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