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Ask a Teacher - Geography - Physical - A Question from
Student Name
Question
In my 4th year preliminary exam I didn't know how a corrie was formed, so, how are corries formed?
Answer
Corries are formed in the following way:
snow collects in hollows high in the mountains
snow compacts to form ice
weight of the ice causes it to move, helped by melting water underneath
ice has a rotational movement towards the lip of the hollow
plucking and abrasion by the ice deepens the hollow
steep back-wall is also produced
after the ice has melted, a corrie loch may form.
It is a good idea to draw diagrams to match the description.
You can find detailed diagrams for this sort of question in your class textbook, BBC website section on glaciation or on page 43 of the Standard Grade Bitesize Revision textbook.
