Origin and development of depositional landforms: drumlins, erratics, moraines, till plains
When a glacier melts, it drops the rock and sediment it was carrying. This material builds up into distinctive landforms, including drumlins, erratics, moraines, and till plains.
Real World
The Norber erratics in North Yorkshire are blocks of Silurian gritstone deposited by a glacier on a limestone pavement — the rock beneath has weathered away, leaving the boulders perched on limestone pedestals.
Exam Focus
When explaining drumlins, state that their long axis indicates ice flow direction — this detail is a frequent mark-scheme point that students omit.
Essay Framework
Use PEEL to structure every paragraph. Tap each step for guidance and an example.
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