Geography & History Notes | KCSE, NECTA, ZIMSEC & GCSE

  These are types of landforms of highland glaciation and glacial erosion. Because glacier place the combines the roles of erosion, transportation and deposition throughout its course. 1. Corrie OR Cirque : are the bowl shaped depressions found at the head of glacial valleys. For most alpine glaciers, cirques are the areas in the alpine valleys where snow first accumulated and was modified into glacial ice. The glaciers that occupy cirques are called cirque glaciers . Many cirques contain lakes, which are called cirque lakes . A cirque is also called corrie (Scottish) or cwm (Welsh). Cirques are common in glaciated mountain areas in the European Alps and Antartica. 1. A cirque occurs when snow collects in cracks or depressions at high altitude. Alternate freezing and thawing enlarges the depression. As the ice flows away, it enlarges the hollow further through plucking. 2. Arete,  An arete are narrow serrated rigdes found in glaciated alphine areas. It is formed when tw...