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The Restless Earth

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by

Mr Sixsmith

on 6 May 2015

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Transcript of The Restless Earth

The triangles are volcanoes and the dots are earthquakes. The vast majority are located along plate boundaries.
The structure of the earth
Plate Boundaries
Andes Fold mountains
Earthquakes, Volcanoes, Supervolcanoes and Tsunamis
Earthquakes
Case Studies
Earthquakes and Volcanoes
The Restless Earth
Split into tectonic plates, these move around.
Hotter towards the core, cooler towards the crust. This is semi molten rock.
It's very hot here made of molten rock.
The hottest part of the earth but solid as it is under lots of pressure.
Why the plates move
Fold Mountains
(A brilliant song)
Ocean Trenches
Here
There's lots of different ways these are used
Mining
This makes lots of money as it extracts valuable materials.
But it causes massive damage to the environment.
Farming
This is mainly subsistence farming, so that the soil holds the water needed for the crops to grow terracing is used.
Tourism
There are lots of natural tourist attractions with the mountains.
Other attractions like the Inca Trail and Machu Picchu bring in lots of tourists.
Hydroelectricity
The steep slopes and large amount of rainfall make the area ideal for hydroelectricity.
There are small and large scale projects. They are good because they are sustainable.
Volcanoes
Supervolcanoes
Tsunamis
Composite Volcanoes
Steep sides, made of layers of ash and lava. Found on destructive plate boundaries.
Erupt violently but infrequently.
Shield Volcanoes
Low wide cone shape.
Made of lava not ash.
Erupt frequently but not violent.
Pakistan
An earthquake in a poorer country
Mount St Helens
Japanese Tsunami
Yellowstone Supervolcano
Need more information?
Go to moodle http://moodle.bishopr.co.uk/course/view.php?id=2453
or twitter @brgeography
Full transcript