How do Spurs form geography?
As the river erodes the landscape in the upper course, it winds and bends to avoid areas of hard rock. This creates interlocking spurs, which look a bit like the interlocking parts of a zip. When a river runs over alternating layers of hard and soft rock, rapids and waterfalls may form.
What is the difference between a spur and a valley?
Arete is a narrow ridge and a Spur is a smaller ridge branching off a summit or a main ridge. Valley (Also: Gully, Draw, Couloir) – Long depression in the terrain that has a narrow elevated side and a wide lower opening. A valley can be “V” or “U” shaped and often can be seen as a “negative” to a ridge.
What is a split in a river called?
River bifurcation (from Latin: furca, fork) occurs when a river flowing in a single stream separates into two or more separate streams (called distributaries) which then continue downstream.
What is the difference between hanging valley and U-shaped valley?
As the main glacier erodes deeper into the valley, the tributary is left higher up the steep sides of the glacier. U-shaped valleys ending with a waterfall at the cliff-face are called hanging valleys. When a river erodes the landscape, ridges of land form in its upper course which jut into the river.
How does glaciation turn interlocking spurs into Truncated spurs?
When a glacier moves downhill it erodes everything in its path through abrasion and plucking. Glaciers usually follow the easiest route down a mountain, which is often an old river valley. Interlocking spurs created by a river are eroded at the ends by the glacier to create truncated spurs .
How is a truncated spur formed BBC Bitesize?
The glacier uses the processes of plucking and abrasion to widen, steepen, deepen and smooth ‘V’-shaped river valleys into a ‘U’ shape. The interlocking spurs in the narrow V-shaped river valley are cut-off by the ice, creating truncated spurs .
What has a forest but no trees riddle?
I have cities but no houses, forests but no trees, rivers without water. What am I? A map.
What are interlocking spurs in geography?
Interlocking spurs are fingers of land that jut out into the river valley that streams and rivers are forced to flow around in the upper course. Find out more about the landforms of erosion in the upper course of a river.
How are spurs formed in a river?
6. Spurs are ridges of hard rock, which a river is forced to wind around as it passes downstream in the upper course as is cannot erode the hard rock. Interlocking spurs are formed when the river is forced to swing side to side around the spurs of hard rock which interlock as you look at the river.
What are the best ways to support teaching of AQA geography?
Marks schemes have been used to help ensure model answers access the higher band for each question. These create excellent support resources for your teaching of the new AQA Geography A level and will save you many hours in preparation time. These essays would also support the teaching of other A level Geography specifications.