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AQA ALevel Geography - Glaciation A2 > CASE STUDIES > Flashcards

Flashcards in CASE STUDIES Deck (3)
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1

Newtondale

Proglacial lake/ overflow channel

Overflow from lake Pickering, left gorge which is 5km long

Fluvioglacial

2

River Severn

Fluvioglacial

Preglaciation- flowed into Irish Sea and Bristol channels

Ice age- north route was blocked by ice. Then proglacial lake which overflowed following southerly route, created the iron bridge gorge

Deglaciation - ice melt and retreat river followed southerly route which created current river Severn

3

Antarctica

- fragile environment
- 14 million km2
- 90% of all ice on earth
- 70% of earths fresh water
- average temp -49*C

Protection

Antarctic Treaty 1959 signed by 53 countries
International whaling commission, voluntary ( Iceland, Norway, Japan)
IAATO protect tourism impact
Antarctic and southerly ocean coalition, NGO