Drumlins & Erratics

Geography: AQA GCSE, topic 3.4.6

Drumlins and Erratics

As well as moraines, glaciers can also deposit material as drumlins or erratics:

Drumlins

Drumlins

  • Drumlins are elongated hills of glacial deposits.
  • At the upstream end, drumlins are rounded, steep and blunt.
  • At the downstream end, drumlins are tapered, have a shallower relief and are pointed.
Erratics

Erratics

  • Erratics are large rocks that have been transported by a glacier and then deposited in a place that's made of another type of rock.
  • Erratics usually look very out of place in their surroundings.

Test yourself on Drumlins & Erratics

  • What do we call elongated hills of glacial deposits?

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