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ScotlandGeographyQuick questions
Physical Environments
Quick questions on Lithosphere: glaciation and coastal landscapes - SQA Higher Geography
4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are erosional landforms?Show answer
A corrie is an armchair hollow on a mountainside where snow accumulated and ice rotated, deepening the hollow by plucking the back wall and abrading the floor; a rock lip holds a small lake (a tarn) such as Lochan Coire an Lochain in the Cairngorms. Where two corries erode back to back they leave a sharp arete, and three or more leave a pyramidal peak. A glacier moving down a pre-existing river valley straightens and deepens it into a U-shaped valley (glacial trough), truncating the old interlocking spurs to leave truncated spurs and leaving tributary valleys high up as hanging valleys.
What are depositional landforms?Show answer
As ice melts it drops unsorted angular debris called till (boulder clay). Moraine is till deposited as ridges: lateral moraine along the valley sides, medial moraine where two glaciers merge, terminal moraine at the snout, and ground moraine spread across the floor. Drumlins are smooth, egg-shaped mounds of till, with a steep stoss (up-ice) end and a tapering lee end, aligned with the direction of ice flow.
What is q1?Show answer
Explain the formation of a corrie. [4 marks]
What is q2?Show answer
Explain how a spit is formed. [4 marks]
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