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A dictionary of glaciation
The Baltoro Glacier in northern Pakistan © 2005 Guilhem Vellut
http://en.wikipedia.org/wiki/File:Baltoro_glacier_from_air.jpg
© www.teachitgeography.co.uk 2012
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G is for … Glacier
A large river of ice
which moves very
slowly downhill.
They form where
the accumulation
of snow is more
than the ablation
or melting. An
example is the
Aletsch Glacier in
Switzerland.
© www.teachitgeography.co.uk 2012
The Aletsch Glacier in Switzerland
© 2005 Dirk Beyer
http://en.wikipedia.org/wiki/File:Grosser_Aletschgletscher_3178.JPG
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What do these glaciation
key words mean?
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ablation
abrasion
arête
bergschrund
boulder clay
cirque
corrie
crevasse
cwm
drumlins
erratic
fjord
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freeze-thaw
ground moraine
hanging valley
ice age
interglacial
lateral moraine
lip
misfit stream
moraine
outwash plain
pyramidal peak
ribbon lake
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roches moutonnées
rotational movement
scree
sea level changes
snout
snowline
tarn
terminal moraine
till
truncated spur
U shaped valley
valley glacier
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Student task
• Your task is to produce a PowerPoint dictionary of
glaciation that you can use for exam revision. It must
cover all aspects of glaciation including:
 processes: erosion, transportation and deposition
 landforms: from arêtes to the zone of ablation
 case studies: what examples can you remember?
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Instructions
• Make one slide only for each glaciation key word or
phrase.
• However, you can have more than one slide for each
letter, and none for some letters.
• Start each slide as follows:
 A is for …
 B is for …
 C is for … etc.
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Student task
• Look at the sample slides before you start.
• Don’t forget to access different sources including:
• your notes
• textbooks
• the internet.
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A is for … Arête
A thin knife-edged
ridge of rock
dividing two glacial
valleys or corries,
e.g. Striding Edge
on Helvellyn in the
Lake District.
© 2008 Richard West
http://www.flickr.com/photos/richardwest/3073418531/
© www.teachitgeography.co.uk 2012
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B is for … Bergschrund
Where the ice wall
at the head of a
glacier (to the right
of the climbers) has
separated slightly
from the back wall of
its corrie.
© 2006 Martin F
http://www.flickr.com/photos/marts-pics/210361766/
© www.teachitgeography.co.uk 2012
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B is for … Baltoro Glacier
This glacier is located in
the Karakorum mountains
of Pakistan. At 62
kilometres long, it is one
of the longest outside of
the polar regions.
© 2005 Guilhem Vellut
http://en.wikipedia.org/wiki/File:Baltoro_glacier_from_air.jpg
© www.teachitgeography.co.uk 2012
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