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Glaciated Landscapes

The Quaternary Ice Age and the Little Ice Age

  • 3 things to know
  • Component 1 Section A

Overview

Glacial period, loch Lomond Stadial and how eccentricity affects the glacial cycle.

What you need to know

Answer each one before you reveal it.

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Numbers

When did the Quaternary Ice Age begin?

Key term

Define a glacial period.

Key term

Define an interglacial.

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    When did the Quaternary Ice Age begin?

    Model answer

    The Quaternary Ice Age began about 2.6 million years ago. The period continues today, because permanent ice sheets still exist.

  2. 2

    Define a glacial period.

    Model answer

    A glacial is a prolonged cold phase when ice sheets expand across mid latitudes. Each glacial in the late Quaternary lasted roughly 100,000 years.

  3. 3

    Define an interglacial.

    Model answer

    An interglacial is a warm phase between glacials when ice sheets retreat to the poles. Interglacials last around 10,000 to 15,000 years.

  4. 4

    What is a stadial?

    Model answer

    A stadial is a shorter cold snap within a glacial or interglacial period. Ice readvances but not to a full glacial extent.

  5. 5

    What is an interstadial?

    Model answer

    An interstadial is a short warm phase within a glacial period. Ice retreats temporarily before the cold returns.

  6. 6

    Name the last glacial period in Britain and say when it ended.

    Model answer

    The Devensian was the last glacial in Britain and ended about 11,700 years ago. Ice covered most of Scotland, Wales and northern England at its maximum.

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