Glaciation

• Hanging Valleys

  Hanging valleys form from tributaries rivers that flow into the main river below. during glaciation these tributary valleys are filled with small glaciers. these glaciers do not have the same power as the valley glacier and thus do less vertical erosion  

  After glaciation the tributary valleys have been cut off from the main valley glacier and so are left ‘hanging’ above the main valley. When the rivers return the hanging valley will usually contain a waterfall. 
• Neve


  Accumulated snow that is compressed into ice
• Glacier erosion

  1. Former interlocking spurs may be cut off by the glacier forming truncated spurs

  2. Steepening the sides of the valley
• U-shaped valley


  Left after glaciation with a flat bottom and steep sides
• Formation Of A Glacier

  
  

  Snow accumulates in north facing hollows. The ground is more shaded in these areas so it lies longer. More snow falls in winter than melts in summer in these areas. This snow then compacts, forming neve. Neve is compressed into glacial ice, forming a glacier.
• Formation of a ribbon loch

  A ribbon loch can form where the glacier has eroded softer bedrock more deeply than the surrounding rock. When the glacier retreats the deepened sections fill with meltwater and become ribbon lochs.