002 - Periglacial 


Geographic Knowledge and Understanding

Periglacial processes of freeze-thaw, solifluction and frost heave, and periglacial landscape features, including permafrost, thermokarst, patterned ground and pingos.

Key Concepts

The processes of erosion, transport and deposition are necessary for the creation of periglacial landscapes.


Key Terminology

Like the previous lesson this one is also terminology heavy. While there is a list below of terms we will be using we will define them throughout the course of the lesson.

If for whatever reason you need to quickly reference the meaning of these terms have a look in the useful links below:

Useful Links

Activity One - Watch

Watch the clip below and just be amazed at how the landscape changes when it is impacted by ice and water.

Activity Two - Describe

Before we even start to look at landforms created in periglacial areas we need to look at what a periglacial area is and what its characteristics are. Answer the following questions using the images above and the useful resources below:

Useful Resources

Taken From: http://www.physicalgeography.net/fundamentals/images/periglacial_environments.gif

Written Resources

National Geographic Definition: Permafrost

'Glaciation and Periglaciation' text book by Knight pages 64-69

Activity Three - Processes and Movement

There are a number of key processes that occur in periglacial areas and these help to either break up the rock, transport it or deposit the rock.



 Useful Resources

physicalgeography.net - periglacial processes and landforms

'Glaciation and Periglaciation' text book by Knight pages 70-74

Activity Four - Periglacial Landforms

Now you know how material is weathered and how it can move we can begin to look at the different landforms found in periglacial areas. As the syllabus point focuses on four so shall we. Copy and complete the table below using the images, the slide share and the suggested text book below.

Periglacial Landform Guide

 Useful Resources

World Atlas - solifluction

'Our Planet's Extreme Environments' by Codrington pages 47-49

Useful Images of the Landforms

An Amusing Clip - Conditions in the Artic - Baffin Island, Canada

Taken From: http://www.baffinisland.ca/uploads/2/5/7/7/25770190/5343443_orig.jpg

Image Ten - Location Map of Baffin Island

Exam Style Question

Identify the  landform in the diagram and explain how it is formed. [1+3]