Geography Flashcards
(31 cards)
Primary
The sector including jobs like farming and fishing
Secondary
The manufacturing sector
Tertiary
The service sector
Quarternary
The research sector
Urbanisation
The increase in the percentage of people living in towns and cities causing them to grow
Suburbanisation
The outward spread of the built-up area
De-industrialisation
The decline of industrial activity in a region or an economy
Counter urbanisation
The movement of people and employment from major cities to smaller settlements
Regeneration
Reviving the economy or environment of a run down area
What are divergent plate boundaries
Plate boundaries moving apart from each other
What happens at divergent plate boundaries
Magma from the mantle rises up to make a new crust the movement of the plates over the mantle can cause earthquake rising magma can also create shield volcanoes
Conservative plate boundaries
Two tectonic plates slide past each other often at different speeds
What happens at conservative plate boundaries
As the plates try to move direction occurs and plates become stuck. Pressure builds up and when this is realised it creates a huge amount of energy
Convergent plate boundaries
Normally oceanic plates and continental plates moving towards each other
Two different types of lava
Andesitic and Basalic
Characteristics of basilica lava
Hight temps low silica watery moves further takes linger to cool
Characteristics of andesitic lava
Lower temp,more silica, thicker/runnier,travels little and cools quickly
Volcanic bombs
Large blocks of hot rock thrown from a volcano
Volcanic gas
Mainly steam and carbon dioxide plus some sulphur dioxide can suffocate you
Lahars
Destructive volcanic landslides or mudflow consisting of a mixture of volcanic material,mud,rock and water
Pyroclastic flow
A current of hot gas and rock that flows downhill at high speeds
Volcanos usually happen at…
Divergent (constructive)
And
Convergent(destructive)-subduction
Occasionally hot spots
HAITI 2010(developing)
-Epicenter at port at prince the capital of Haiti
-magnitude (7)
-one of the most destructive earthquakes ever
-3 million were affected
-1.5mlion made homeless
-All the hospitals collapsed
-Airport port and road were unusable
-power went out
-cholera spread
-damaged economy
Japan 2011 (developed)
-Epicenter only a few km off the coast of Japan
-11th march
-Magnitude of largest ever recorded in Japan (9)
-The pacific plate thrust under the Eurasian plate
-over 17000 were killed by drowning in the tsunami
