geog plate boundaries

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Destructive plate boundary
one plate sinks under another. example: pacific plate
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destructive collision plate boundary
both plates move together. example: african plate
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constructive plate boundary
both plates move away. example: south american plate
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conservative plate boundary
both plates slide against each other in the same direction. example: north american plate
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where are super volcanoes located?
on the spacific ring of fire.
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what plate margin are super volcanoes on?
they are on a destructive plate margin.
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what would global cooling result in?
a volcanic winter (killing crops + animals)
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oceanic crust:
newer - normally less than 200million years old. it is denser. it can sink. it can be renewed and destroyed.
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continental crust:
older - normally over 1500 million years old. it is less dence. it cannot sink. it cannot be renewed or destroyed.
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advantages of living near a volcano?
the land is more fertile which is good for farming. there are valuable minerals which are worth money. good for tourism e.g skiing&volcano tourism. land prices may be cheaper.
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where is montserrat located?
it is located in the Carribean and is next to the Carribean sea.
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what is the capital of montserrat?
Plymouth
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Describe the physical geography of the island montserrat
the island is ver mountainous with steep slopes
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short term responces to the eruption?
sign posts close to the volcano warn off danger. ferries organised to Antigua.
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medium term responses?
plymouth + southern part of island evacuated. schools set up in camps elsewhere on the island. supplies from inside danger zone retrieved.
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long term responses?
outmigration. visas for migration to uk arranged. 341million was given to help the island from the british government.
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what is meant by the term 'plate'?
a plate is a large section of the earths crust.
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what causes volcanic cones?
the 'cracks' in the Earth that form tectonic boundaries allow magma or lava to well up out of the vast "ocean" of molten rock that the plates "float" on.since the pressure is greater the lava rises until it reaches the surface of land whether in the
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Other cards in this set

Card 2

Front

both plates move together. example: african plate

Back

destructive collision plate boundary

Card 3

Front

both plates move away. example: south american plate

Back

Preview of the back of card 3

Card 4

Front

both plates slide against each other in the same direction. example: north american plate

Back

Preview of the back of card 4

Card 5

Front

on the spacific ring of fire.

Back

Preview of the back of card 5
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